ISAscale // High precision measurement. IVT-MODular CAN. Index

Transcription

1 CAN Index. Introduction. Application. Additional features 4. Functionality description 5 5. Measurement description 9 6. Technical data 4 7. CAN-Protocol 8 8. Startup 8 9. Qualification 8. Introduction The IVT-MOD is a high precision current and voltage measurement system, designed for DC applications. The product is based on a modular design and provides flexibility for fast adaptations to meet customer requirements in the automotive and the industrial area. The continuous current measurement has a range up to ±,500 A and the voltage channels include a range of ±800 V, and it is approved for continuous operation. At higher currents (i. e. peaks) the measurement range will extend automatically. The shunt-based measurement method uses a 6-bit analog-digital converter to transform the voltage drop into a digital signal. The communication is based on a CAN bus interface. A CAN description file (CAN-dbc) is available and supports fast system integration. The modularity includes the following functionalities _ Isolation against high voltage potential _ Overcurrent detection _ Hardware trigger (for start of measurement) _ Five ranges of current measurement (according to shunt value) _ p to three voltage measurement channels _ Digital communication (CAN with and without termination) _ Three ranges of power supply See the description of the modularity in chapter 4. / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

2 Due to the large number of modular combinations three basic modules were defined to cover most applications. Every basic sensor can be adapted to customer specific requirements. Modularity Basic sensor Basic sensor Power supply V 4 V V Interface CAN (with termination) CAN (without termination) Isolation Automotive/industrial grade automotive Current measurement range ±00 A; 00 A; 500 A, ka;.5 ka Voltage measurement range 800 V (0 - channels) I/O Trigger (input) OCS (output) Connector JST (JWPF) Overcurrent signal The IVT is more than current and voltage sensing The IVT-MOD has a total number of eight measurement signals. The signals are individually configurable. Table : List of output signals Channel nit Current A Voltage V Voltage V Voltage V Temperature C Power W Current counter As Energy counter Wh NOTE: Power measurement is always based on Voltage. / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

3 . Application The IVT-MOD is designed for a wide range of DC applications. For example: _ Hybrid and full electric drives _ PS systems _ Stationary energy storage systems _ Fuel cells _ Battery and storage based applications. Additional features. Internal safety The sensor status is internally monitored by the microcontroller. In case of a sensor failure a status bit is set and the overcurrent signal (OCS) is generated (low-active signal output). (See OCS chapter 4). During the start-up phase the OCS is also active. To verify the current measurement of the first channel, a second virtually independent ADC channel is used. The system compares the signal of both channels to determinate malfunctions in the ADC. Furthermore the ADC s reference voltage is monitored. Therefore the IVT-MOD can detect a non-valid measurement condition on the current channel (chapter 5.). The IVT-MOD has a high number of features. The following features are available for all modular combinations.. Measurement modes _ Disable _ Trigger _ Cycle running It is possible to configure each channel individually. Disable mode The measurement channel is disabled. The channel does not react to a software command or hardware trigger. Trigger mode The module sends a measurement result message in response to a received trigger command. This command can be either a software message or a hardware trigger line signal. In case of a detected hardware trigger signal, the module starts one single measurement cycle. The hardware trigger input is built as a high-active input (rising edge). For more information see chapter 4. Cycle running mode The module sends a measurement result message after a configured cycle time. Example: current channel cycle time: 0 ms. Every 0 ms a measurement result message for the current channel is generated and transmitted over CAN. / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

4 . Log data The log data are continually stored, with an interval of 5 minutes. In case of a sensor reset, the last stored logdata will be recovered. It is possible to reset all logdata, as well as individual logdata. The following Logdata are available as 6-Byte values: No. Item nit Min Max Ampere hour counter overall (only if counter is activated) As -7,000,000,000,000 +7,000,000,000,000 Ampere hour counter charging (only if counter is activated) As 0 +44,000,000,000,000 Ampere hour counter discharging (only if counter is activated) As 0 +44,000,000,000,000 4 Energy counter overall (only if counter is activated) Wh -7,000,000,000,000 +7,000,000,000,000 5 Energy counter charging (only if counter is activated) Wh 0 +44,000,000,000,000 6 Energy counter discharging (only if counter is activated) Wh ,000,000,000,000 7 Runtime overall s 0 +,000,000,000 8 Runtime current measurement within specified limits s 0 +,000,000,000 9 Runtime current measurement outside specified limits s 0 +,000,000,000 0 Runtime voltage measurement within specified limits s 0 +,000,000,000 Runtime voltage measurement outside specified limits s 0 +,000,000,000 Runtime voltage measurement within specified limits s 0 +,000,000,000 Runtime voltage measurement outside specified limits s 0 +,000,000,000 4 Runtime voltage measurement within specified limits s 0 +,000,000,000 5 Runtime voltage measurement outside specified limits s 0 +,000,000,000 6 Runtime temperature measurement within specified limits s 0 +,000,000,000 7 Runtime temperature measurement outside specified limits s 0 +,000,000,000 8 Runtime oc positive activated s 0 +,000,000,000 9 Runtime oc negative activated s 0 +,000,000,000 0 Current measurement maximum A -,000 +,000 Current measurement minimum A -,000 +,000 measurement maximum V -,000 +,000 measurement minimum V -,000 +,000 4 measurement maximum V -,000 +,000 5 measurement minimum V -,000 +,000 6 measurement maximum V -,000 +,000 7 measurement minimum V -,000 +,000 8 Temperature measurement maximum /0 C ,000 9 Temperature measurement minimum /0 C ,000 4 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

5 .4 Firmware update To update the firmware, the IVT has an implemented bootloader. Firmware update can only be done at Isabellenhuette. 4. Functionality description Module overview Voltage Voltage Voltage ADC Over current detection +Ground Shunt Microcontroller Hardware trigger Signal Isolator Isolation Power supply Isolator CAN 8 40 V typ. 4 V 5 6 V typ. V Connector Modularity Minimum configuration 4. Isolation This functionality is designed for high voltage applications. With the isolation module the sensor can be used with different potential levels on power supply (low voltage side) and shunt (high voltage side). Table : Isolation voltage for DIN EN :008-0 Declarations are valid at the following condition: Sea level under,000 m Maximum working isolation voltage Basis isolation DC voltage Reinforced isolation DC voltage Highest allowed transient overvoltage Minimum External Clearance distance Minimum External Creepage distance Minimum Internal Clearance Material Group housing Material Group potting Material Group connectors 400 V RMS CATI-II 00 V RMS CATI-III 50 V RMS CATI-IV 560 V peak 50 V peak 4,000 V > 40 mm > 50 mm 5.5 mm IIIa II II 5 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

6 4. Overcurrent signal (OCS) This functionality implements an overcurrent detection for positive and negative current directions. As soon as the overcurrent is detected the alarm line OCS is activated, which indicates an overcurrent condition to the external circuit. The OCS is a software feature, so it is possible to set the overcurrent threshold for set OCS and reset OCS, separately for positive and negative current directions. Therefore the hysteresis can be easily defined by the set and reset threshold (see figure ). The configured threshold value is compared with the measurement value. After exceeding the threshold the open-collector output is active-low (figure ). The OCS-Pin is short-circuit-proof with a maximum current of 5 ma with a min. pull-up resistor of 4K Ohm. The maximal input voltage depends on temperature and current (see figure 4). The OCS is deactivated when the measured value is below the reset threshold value (figure ). Figure : open-collector output for overcurrent signal Open-Collector Overcurrent Current treshold current [A] max. 5 ma It is possible to set a voltage to the OCS-PIN (figure ), different from the supply voltage. Overcurrent Current signal signal active inactive Figure : 5 V application Figure : set threshold and reset threshold 5 V Positive direction Open-Collector max. 5 ma Set threshold Reset threshold hysteresis Negative direction Figure 4: chart for the pull-up resistor 45 Maximum Input Voltage OCS Reset threshold Set threshold hysteresis 40 5 voltage OCS [V] C 85 C 70 C current [ma] Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06 6 / 8

7 4. Hardware trigger The IVT-MOD optionally provides a hardware trigger input. The trigger signal could be used to synchronise the measurement between the IVT-MOD and external systems. Every channel that is configured to trigger mode or cyclic mode reacts to a rising edge on PIN.a and PIN.c. The channels will reset to their initial condition and start measuring by using the configured interval. Figure 5 shows a channel that reacts to a trigger signal. After detecting trigger signal the measurement starts within 0 50 µs. As the minimum sample interval a time of.5 ms is required before triggering the next measurement. A trigger interval of less than.5 ms will not be considered as valid trigger command. Electrical properties see chapter 6.5. Figure 5: a channel in trigger mode High level.5 V V Low level CAN messages HW trigger signal.5 ms.5 ms 4.4 Ranges The IVT-MOD product family offers five different, customer selectable current measurement ranges. The selection of a required measurement range determines the shunt resistance. Every shunt value has unique characteristics (see technical data, chapter 6). One limitation characteristic is the maximum load of the shunt resistor. The limitation is based on the internal thermal resistance and a maximum tolerable heating of 0 Kelvin. To ensure that the limits are not exceeded a good heat dissipation over the bus bar and the environmental temperature must be provided. 4.5 Voltage measurement For an optimized adaption to the application, there is the possibility to order the sensor with one, two or three voltage channels. Each channel is individually configurable and voltage levels are measured with reference to sensor ground. In every case, the first channel is used for the power measurement and has highest priority. Channel two and three are configured with a maximum output rate of ms. Figure 6: example for voltage measurement High voltage connection pins internally shorted Voltage Voltage Voltage Load + Shunt voltage measurement reference Signal Isolator Isolation Power supply Isolator 7 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

8 4.6 Communication interface The IVT-MOD uses the standard CAN.0 protocol. It is possible to order the sensor with CAN termination (figure 7) or without CAN termination (figure 8), depending on the bus topology. Examples for CAN topology Figure 7: star topology Figure 8: bus topology 0 Ohm 0 Ohm The complete protocol description is listed in chapter Power supply There are three options to operate the IVT. Power supply application isolated version non-isolated version V standard V automotive application available available 4 V standard 4 V automotive application available not available 8 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

9 6 ms ADC channel MX I ISAscale // High precision measurement ADC channel MX 6 ms 0 ms 5. Measurement description Depending on the selected functionality there are up to eight measurement output signals (table : list of output signals). Every signal can be configured individually (output transfer rate and value). Based on these variations a high number of applications are possible, i. e. a fast current measuring as well as a complete filtered measuring of all signals. Figure 9: CAN bus CAN bus CAN Message CAN Message ms ms ms CAN Message 5. Sampling rates Current measurement characteristics: One ADC channel is only used for the current measurement, with a provided maximum output rate of ms. Figure 0: averaging over 5 ms 5 ms cyclus Based on the configured measuring interval, the measurement result provides an average value of all single measurements within the interval (figure 0). The use of higher sample intervals increases the accuracy of the measurement. Sampling rate 5 ms output value 0 ms output value Figure : behaviour of ADC channel and ADC channel I I I I I I I I verifying.5 ms.5 ms verifying verifying verifying ADC channel I I I I After every channel sampling, the current channel is additionally sampled for internal use (verifying current measurement for internal safety, see chapter.). Voltage measurement characteristics: The second ADC (ADC) channel is used for voltage measurement. This channel is used for different signals, which are multiplexed. This leads to the following behaviour: 9 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

10 Figure : example with two channel on ADC ADC channel / ms 5 ms 0 ms optimal (5 sampeld data /) not optimal ( () or () sampled data) Optimal ( sampeld data /) If two voltage channels are set, it is recommended to choose an output rate of a factor of. As can be seen in the Figure, one value is determined at an output rate of ms. With an output rate of 0 ms, the output value is averaged over 5 values. If an output rate is not a multiple of the selected channels, according to time frame values () or a value () can be processed. An output rate under ms is not possible here. Figure : example with three channel on ADC ADC channel // ms 5 ms 0 ms 5 ms optimal (5 sampled data //) not optimal (4 () or (/ sampeld data) not optimal ( (/) or () sampeld data) optimal ( sampled data //) If three voltage channels are set, it is recommended to choose an output rate of a factor of three. As can be seen in the Figure ( ms), one value is determined at an output rate of ms. With an output rate of 5 ms, the output value is averaged over 5 values. If an output rate is not a multiple of the selected channels (e.g. 0 ms), according to time frame 4 values () or a value (/) can be processed. An output rate under ms is not possible here. Example : Figure 4: configuration: current channel, voltage channel, ms measurement interval ms ADC channel I ms I ADC channel ms ADC channel ms ADC channel Figure 4 shows an example with 4 signals. All signals are con-figured with a measurement interval of ms. The current measurement extends over ms. The voltage measurement is multiplexed (,, ). 0 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

11 Example : Figure 5: configuration: current channel, voltage channel ms ADC channel I I 6 ms ADC channel 6 ms ADC channel Figure 5 shows an example with signals. The current measurement interval is ms. The voltage measurement interval is 6 ms. The current measurement extends over ms. The voltage measurement multiplexes every ms (, ). After 6 ms the measured value is averaged over values. After evaluation of the configured measurement signals, the result messages of every signal will be generated and provide via CAN bus. Example : Figure 6: two channels; 5 ms output rate 5 ms CAN messages I I I u 5 ms 0 ms 5 ms Configuration condition (figure 6): Two channels are configured, both with a measurement interval of 5 ms. In this case the sensor sends the current and voltage result every 5 ms. / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

12 Figure 7: four channels; 6 ms output rate CAN messages I I I 6 ms ms 8 ms Configuration condition (figure 7): Four channels are configured; all with a measurement interval of 6 ms. In this case the sensor sends a current result every 6 ms, and the voltage result, and every 6 ms, as well. Figure 8: Four channels; different measurement interval CAN messages I 5 ms I I 0 ms 5 ms 5 ms I I I 5 ms 0 ms 5 ms 0 ms 5 ms 0 ms Configuration condition (figure 6): Four channels are configured: Current channel (5 ms interval), Voltage channel with a measurement interval of 5 ms, Voltage channel with a measurement interval of 0 ms and Voltage channel with a measurement interval of 5 ms. In this case the sensor sends the current result every 5 ms and the Voltage result every 5 ms as well, every 0 ms Voltage result and every 5 ms Voltage result. / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

13 5. Overcurrent measurement For overcurrent conditions, the extended measurement range is used. As soon as the measured value exceeds the nominal range, the system switches over to the extended measurement range. The resolution decreases by factor 8. Switching back from the extended measurement range to the nominal range takes place when the lowest value in this measurement range is lower than 5 % of the nominal range. The extended measurement range is wider than the nominal measurement range by factor 8. Figure 9: change measurement range current [A] Overcurrent Current treshold 5% Change measurement range Nominal range Extended range Nominal range 5. Temperature calibration Each measurement result can be influenced by shifting temperature. For this reason, the IVT-MOD includes an internal temperature compensation to provide an optimized result in the complete defined temperature range. 5.4 Plausibility check (functional safety) Since there are two independent ADC channels, the measured value from the first ADC channel is compared with the measured value from the second ADC channel. Both channels are also compared with the same bandgap ( ref ). Therefore a measurement drift between both channels, as well as a drift in the bandgap, can be detected. This plausibility check of the ADC provides a high reliability of the measured system of time and temperature. If there is a drift detected, a status byte within the result message is set to the corresponding issue. / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

14 6. Technical Data 6. Operation conditions Parameter Min. Typ. Max. nit Operating temperature C Storage temperature C Supply voltage 5 6 V V Current consumption 0 <40 60 ma Current consumption 40 <60 80 ma Startup time ms Power OT current 500 ma Isolation According to chapter Current measurement Parameter nit Nominal measurement range (depends on the shunt) ± 00 ± 00 ± 500 ±,000 ±,500 A Power loss < <9 <9 <0 < W Overcurrent measurement range ± 800 ±,500 ± 6,900 ±,00 ± 48,000 A Extended load (max. time) 5 min ±0 ±0 ±70 ±,00 ±,700 A 0 s ±00 ±40 ±860 ±,400 ±,00 A 0 s ±00 ±600 ±,000 ±,000 ±4,00 A s ±900 ±,600 ±,700 ±5,500 ±,00 A 00 ms ±,000 ±,600 ±6,000 ±,000 ±4,000 A Initial accuracy 6, 9 ±0. % rdg 5 Total accuracy 6, 9 ±0.4 % rdg 5 Offset ma Linearity % of range Noise ma (rms) Resolution ma Accuracy overcurrent range ± %rdg 5 Offset overcurrent range ,00 ma Linearity overcurrent range 0. % of range Noise overcurrent range ,40 ma (rms) Resolution overcurrent range ,488 ma without isolation with isolation 4 depends on the modularity 5 failure of reading 6 with temperature calibration 7 without averaging 9 in nominal measurement range 4 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

15 6. HV voltage measurement Parameter Min. Typ. Max. nit Nominal measurement range ±800 V Initial accuracy 0. % rdg 5 Total accuracy 0.4 % rdg 5 Offset 00 mv Linearity 0.0 % of range Noise 45 mv (rms) Resolution 0 mv 5 failure of reading 6.4 Communication Interface Specification Speed Termination CAN.0 a 50kbit/s; 500kbits/s; Mbit/s 0R Direction Min. Max. nit V CC Supply voltage for CAN V V I or V IC Voltage at any bus terminal (separately or common mode) - V V IH High-level input voltage TXD,S 5.5 V V IL Low-level input voltage TXD,S V V ID Differential input voltage -6 6 V I OH I OL High-level output current Driver -70 ma Receiver ma Low-level output current Driver +70 ma Receiver ma 6.5. OCS and Trigger level Type Direction Signal Low level High level Max. output current OCS output low active < V >.5 V 5 ma (max. 4 kohm; VCC) Trigger input high active < V >.5 V 6.6. Connector Manufacturer Type No. of pins Colour Man. part no. Modul connector JST JWPF red B0B-JWPF-RK-R (LF)(SN) 4 black B04B-JWPF-KK-R (LF)(SN) Wire connector JST JWPF red 0R-JWPF-VRLE-S 4 black 04T-JWPF-VKLE-S Crimp contact JST SWPR-00T-P05 CAN termination connector ISA JWPF 4 black 5 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

16 6.7 Mechanical dimension IVT-MOD non-isolated IVT-MOD isolated,000 /,500 A 40,4 40,4 4, / 00 / 500 A 40,4 40, ,8 0,6,5 4, 4, ,8,6 8, (x) 8, (x) 85, 4,,5 4,6 6,8 5,8 8 8,9,6 4, 4, , 5,8 8 4, 4,5 4,8,6 0 8, (4x) 8, (4x) 6 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

17 6.8 Pin configuration (full modularity) Figure 0: Pin configuration PIN Description Remark (module or basic) Power IN / CAN IN Basic a VCC b GND c CAN L d CAN H Power OT / CAN OT Only for non internal CAN termination version a VCC Max. current on Power OT < 500 ma b GND c CAN L d CAN H Trigger and OCS Module a Trigger b OCS c Trigger c, d only present in case of non internal CAN termination d OCS 4 0 Voltage measurement module (both pins internally shorted) 5 0 Voltage measurement module (both pins internally shorted) 6 0 Voltage measurement module (both pins internally shorted) 9 High voltage Pin (reference to module ground (see module overview chapter 4)). 7 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

18 6.9 Part description IVT 00 T O I CAN Product group IVT Current Range [A] 00 / 00 / 500 / K0 / K5 Voltage Channel 0 / / / Add. Feature T ó Trigger O ó Overcurrent detection I ó galvanic Isolation Communication CAN ó CAN-Termination on Board CAN ó No CAN-Termination on Board Power Supply ó typ. V 4 ó typ. 4 V 7. CAN-Protocol DB0 DB DB DB DB4 DB5 DB6 DB7 Selectable bitrate _,000,000 bit/s _ 500,000 bit/s _ 50,000 bit/s 8 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

19 Default parameters CAN bitrate = 500,000 bit/s Signals Mode Time [ms] Current Cyclic 0 Cyclic 60 Cyclic 60 Cyclic 60 T Disable 00 W Disable 0 As Disable 0 Wh Disable 0 Messages Overview Description Default CAN-ID Length DLC Remark IVT_Msg_Command 0x4 8 Function commands, SET and GET commands. A command-id-byte is included for identification. IVT_Msg_Debug 0x50 8 Message only for internal use IVT_Msg_Response 0x5 8 Response to SET and GET command messages. A response-id-byte is included for identification. IVT_Msg_Result_I 0x5 6 Current IVT_Msg_Result_ 0x5 6 Voltage IVT_Msg_Result_ 0x5 6 Voltage IVT_Msg_Result_ 0x54 6 Voltage IVT_Msg_Result_T 0x55 6 Temperature IVT_Msg_Result_W 0x56 6 Power (referring to current and voltage ) IVT_Msg_Result_As 0x57 6 Current counter IVT_Msg_Result_Wh 0x58 6 Energy counter (referring to current and voltage ) Not used bytes in response messages are undefined and reported as 0x00. Not used / undefined bytes in command messages must be set to 0x00. Each defined command will report its response message even if there was no change done or is currently not allowed (e.g. set configuration during run mode). This is done to give acknowledge to the sender. Consecutive commands must be sent not faster than ms, or you can wait until the related response is sent. Response messages must be available on the bus (free bus) at least +500ms after the related command, if not otherwise specified. If not otherwise mentioned byte orders are Big Endian. 9 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

20 Multiplexable messages All messages sent by the IVT will be uniquely identifiable by the first databyte sent as muxbyte. DB0 (Muxbyte) Remark 0x0n Results (measured or calculated) 0xn Set CAN ID 0xn Set config result 0xn Set commands 0x4n Get error/log data 0x5n Get CAN ID 0x6n Get config result 0x7n Get commands 0x8n Response on error/log data 0x9n Responses on CAN ID 0xAn Responses on Config Result 0xBn Responses on Set and Get Commands 0xCn -- 0xDn -- 0xEn -- 0xF0 ::: 0xFE -- 0xFF Response on not allowed message 7. Result messages DB Signal Value Description 0 MuxID 0x x07 Multiplexer, n = channel number Cyclic counter individually for each channel IVT_MsgCount 0x0... 0xF Low nibble High nibble IVT_Resulte_state 0b b bit 0: set if OCS is true bit : set if - this result is out of (spec-) range - this result has reduced precision - this result has a measurement-error bit : set if - any result has a measurement-error bit : set if - system-error, sensor functionality is not ensured!... 5 IVT_<Resultname> All Results as signed long, see configuration 0 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

21 MuxID description for IVT_Msg_Result MuxID Resultname nit 0x00 IVT_Msg_Result_I ma 0x0 IVT_Msg_Result_ mv 0x0 IVT_Msg_Result_ mv 0x0 IVT_Msg_Result_ mv 0x04 IVT_Msg_Result_T 0. C 0x05 IVT_Msg_Result_W W 0x06 IVT_Msg_Result_As As 0x07 IVT_Msg_Result_Wh Wh Examples: Default configured as big Endian (see Config Result) Example for results: DB 0 DB DB DB DB 4 DB 5 0x0 0x05 0x00 0x00 0x88 0xb8 Decode the message: Byte(s) Value Information DB 0 0x0 IVT_Msg_Result_ DB High-byte 0x0 state bits = 0 DB Low-byte 0x5 Message number 5 DB to DB 5 0x000088b8 5,000 mv Optionally configured as little Endian (see Config Result) Example for results: DB 0 DB DB DB DB 4 DB 5 0x0 0x05 0xb8 0x88 0x00 0x00 Decode the message: Byte(s) Value Information DB 0 0x0 IVT_Msg_Result_ DB High-byte 0x0 state bits = 0 DB Low-byte 0x5 Message number 5 DB to DB 5 0xb ,000 mv / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

22 7. Set CAN ID Command Set CAN ID Indicates which message type is being changed: 0x0 IVT_Msg_Result_I 0x IVT_Msg_Result_ 0x IVT_Msg_Result_ 0x IVT_Msg_Result_ 0 0x4 IVT_Msg_Result_T 0x5 IVT_Msg_Result_W 0x6 IVT_Msg_Result_As 0x7 IVT_Msg_Result_Wh 0xD IVT_Msg_Command 0xF IVT_Msg_Response 0 0x07 Low byte of desired bit CAN ID 0 0xFF High byte of desired bit CAN ID 0x00 0xFF Low byte of -bit serial number 4 0x00 0xFF Mid-low byte of -bit serial number 5 0x00 0xFF Mid-high byte of -bit serial number 6 0x00 0xFF High byte of -bit serial number Configuration only in Stop-Mode 7. Config result Set config result 0 0xn Set configuration of measurement. n represents the according result (e. g. = IVT_Msg_Result_). Trigger mode: 0x0 Disabled Low nibble 0x Triggered 0x Cyclic running Config result flags in high-byte 0bnnn Bit 4: for future use 0bnnn Bit 5: for future use High nibble 0bnnn Bit 6: endianess, 0: Big Endian (default), : Little Endian 0bnnn Bit 7: sign unchanged (default), =sign is changed (+ <-> -) - 0xnnnn output-cycle-time / Measurement-interval / Trigger delay [ms] (+/- 0%) - 0x0000 is interpreted as ms Configuration only in Stop-Mode / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

23 Output and measurement configuration details: DB 0 (n) Signals Default MODE Default TIME [ms] Min TIME [ms] Description 0 Current Cyclic 0 output-cycle-time = Measurement-interval Cyclic 60 output-cycle-time = Measurement-interval (depending on configuration of... ) Cyclic 60 output-cycle-time = Measurement-interval (depending on configuration of... ) Cyclic 60 output-cycle-time = Measurement-interval (depending on configuration of... ) 4 T Disable 00 Output-cycle-time, Measurement-interval = 00 ms 5 W Disable 0 Output-cycle-time, Measurement-interval = 0 ms 6 As Disable 0 Output-cycle-time, Measurement-interval = 0 ms 7 Wh Disable 0 Output-cycle-time, Measurement-interval = 0 ms Min Time for three configured voltage result messages The configuration has to ensure that the maximum output rate of all messages shall not exceed,000 messages per second. Otherwise the data calculation for As, Wh and Log data can be influenced. 7.4 Set commands Set commands without restart Command Reset Error- and Logdata 0 0x0 Reset Error- and Logdata 0x00 0x0 0x0 0x00 0x0... 0xFF - 6 0xnnnnnnnn Serial-number Command only in Stop-Mode Response message at least +,00 ms after command Reset Measurement Error Reset System Error Reset Logdata Since Reset All Counters reset DB of corresponding Error or Logdata value to be cleared Command TRIGGER 0 0x Triggers a measurement cycle 0xnnnn Bit field for channel to trigger, 0-unselected -selected 0b xxxx xxx IVT_Msg_Result_I 0b xxxx xxx IVT_Msg_Result_ 0b xxxx xxx IVT_Msg_Result_ - 0b xxxx xxx IVT_Msg_Result_ 0b xxx xxxx IVT_Msg_Result_T 0b xxx xxxx IVT_Msg_Result_W 0b xxx xxxx IVT_Msg_Result_As 0b xxx xxxx IVT_Msg_Result_Wh Command available only in Run-Mode / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

24 Command store 0 0x All configured items are stored to nonvolatile memory. -Measurement configurations -Overcurrent thresholds -Startup Mode -Can-IDs -Baud rate The storing process is only completed if the related response message is sent by module, up to +,000 ms depending on amount of data to store. No further commands are allowed if storing is in progress. Remark: The storing command is only available during Module is in stop mode Command START_OC_TEST 0 0x test the OC signal duration of the OC signal in ms Command only in Stop-Mode Command SET_MODE Mode means the whole sensor (config means the result message) 0 0x4 Set operation mode Actual Mode (valid until next reset) 0x00 Stop 0x0 Run Startup operation mode (STORE command required before reset) 0x00 Stop 0x0 Run Code for level of access for future use +4 0x0000 ser 0xnnnn Expert (nnnn = access key) for further use only 0xyyyy OEM customer (yyyy = access key) for further use only Retrievable in STOP- and RN-mode Command SET_THRESHOLD_POS 0 0x5 Set overcurrent thresholds positive current direction + -,768 +,767 Overcurrent set threshold in A-steps 0 means off (default) +4 -,768 +,767 Overcurrent reset threshold in A-steps 0 means off Command only in Stop-Mode 4 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

25 Command SET_THRESHOLD_NEG 0 0x6 Set overcurrent thresholds negative current direction + -,768 +, ,768 +,767 Command only in Stop-Mode Overcurrent set threshold in A-steps 0 means off (default) Overcurrent reset threshold in A-steps 0 means off Set commands with restart Command RESTART_to_Bitrate 0 0xA Restart to configured Bitrate Bitrate acc. to pre-scaler: 0x08 50 k 0x k (default) 0x0,000 k Bitrate is automatically stored before reboot. This may take additional time (up to s) which must be added to the following startup time. Command only in Stop-Mode Command RESTART_to_default 0 0xD Restart_to_default Command only in Stop-Mode Command RESTART 0 0xF Restart Retrievable in STOP- and RN-mode 5 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

26 7.5 Get error logdata Get measurement errors 0 0x40 Get measurement errors 0x00 Get bitmask of occurred measurement errors (specific counter!= 0) Get specific Error Counter (Positive edge of error state cause up counting): 0x0 Error ADC interrupt 0x0 Error Overflow ADC channel 0x0 Error nderflow ADC channel 0x04 Error Overflow ADC channel 0x05 Error nderflow ADC channel 0x06 Error V ref 0x07 Error current measurement implausible I I (check in nominal range) 0x08 Error thermal EMF correction 0x09 Error current measurement I open circuit 0x0a Error voltage measurement open circuit 0x0b Error voltage measurement open circuit 0x0c Error voltage measurement open circuit 0x0d Error ntc-h open circuit 0x0e Error ntc-l open circuit 0x0f Error calibration data (offset-, gain error to high) Retrievable in STOP- and RN-mode Get system errors 0 0x4 Get system errors 0x00 Get bitmask of occurred measurement errors (specific counter!= 0) Get specific Error Counter (Positive edge of error state cause up counting): 0x0 Error Code CRC 0x0 Error Parameter CRC 0x0 Error CAN bus receive data 0x04 Error CAN bus transmit data 0x05 Error overtemp 0x06 Error undertemp 0x07 Error power failure 0x08 Error system clock 0x09 Error system init 0x0a Error configuration 0x0b Error overcurrent detection 0x0c Error eeprom r/w 0x0d Error ADC Clock 0x0e Error Reset illegal opcode 0x0f Error Reset Watchdog 0x0 Error Reset EMC Retrievable in STOP- and RN-mode Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06 6 / 8

27 7.6 Get Overall Logdata (reset only by ISA) 0 0x4 Get Overall Logdata Get details of Logdata: 0x0 Ampere hour counter overall (As) 0x0 Ampere hour counter charging (As) 0x0 Ampere hour counter discharging (As) 0x04 Energy counter overall (Wh) 0x05 Energy counter charging (Wh) 0x06 Energy counter discharging (Wh) 0x0 Runtime overall (s) 0x Runtime current within specified limits (s) 0x Runtime current outside specified limits (s) 0x Runtime voltage within specified limits (s) 0x4 Runtime voltage outside specified limits (s) 0x5 Runtime voltage within specified limits (s) 0x6 Runtime voltage outside specified limits (s) 0x7 Runtime voltage within specified limits (s) 0x8 Runtime voltage outside specified limits (s) 0x9 Runtime temperature within specified limits (s) 0xA Runtime temperature outside specified limits (s) 0xB Runtime overcurrent positive activated (s) 0xC Runtime overcurrent negative activated (s) 0x Current maximum (A) 0x Current minimum (A) 0x maximum (V) 0x4 minimum (V) 0x5 maximum (V) 0x6 minimum (V) 0x7 maximum (V) 0x8 minimum (V) 0x9 Temperature maximum ( C) 0xA Temperature minimum ( C) Retrievable in STOP- and RN-mode 7 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

28 Get Logdata Since Reset (Reset by using command) 0 0x4 Get Logdata Since Reset Get details of Logdata: 0x0 Ampere hour counter overall (As) 0x0 Ampere hour counter charging (As) 0x0 Ampere hour counter discharging (As) 0x04 Energy counter overall (Wh) 0x05 Energy counter charging (Wh) 0x06 Energy counter discharging (Wh) 0x0 Runtime overall (s) 0x Runtime current within specified limits (s) 0x Runtime current outside specified limits (s) 0x Runtime voltage within specified limits (s) 0x4 Runtime voltage outside specified limits (s) 0x5 Runtime voltage within specified limits (s) 0x6 Runtime voltage outside specified limits (s) 0x7 Runtime voltage within specified limits (s) 0x8 Runtime voltage outside specified limits (s) 0x9 Runtime temperature within specified limits (s) 0xA Runtime temperature outside specified limits (s) 0xB Runtime overcurrent positive activated (s) 0xC Runtime overcurrent negative activated (s) 0x Current maximum (A) 0x Current minimum (A) 0x maximum (V) 0x4 minimum (V) 0x5 maximum (V) 0x6 minimum (V) 0x7 maximum (V) 0x8 minimum (V) 0x9 Temperature maximum ( C) 0xA Temperature minimum ( C) Retrievable in STOP- and RN-mode 8 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

29 7.7 Get CAN ID Indicates which message type is requested 0x50 IVT_Msg_Result_I 0x5 IVT_Msg_Result_ 0x5 IVT_Msg_Result_ 0x5 IVT_Msg_Result_ 0 0x54 IVT_Msg_Result_T 0x55 IVT_Msg_Result_W 0x56 IVT_Msg_Result_As 0x57 IVT_Msg_Result_Wh 0x5D IVT_Msg_Command 0x5F IVT_Msg_Response 0 0x00 Ignored 0 0x00 Ignored 0x00 0xFF High-byte of -bit serial number 4 0x00 0xFF Mid-high-byte of -bit serial number 5 0x00 0xFF Mid-low-byte of -bit serial number 6 0x00 0xFF Low-byte of -bit serial number Retrievable in STOP- and RN-mode 7.8 Get Config Result Get Config 0x60 Result_I 0x6 Result_ 0x6 Result_ 0 0x6 Result_ 0x64 Result_T 0x65 Result_W 0x66 Result_As 0x67 Result_Wh Retrievable in STOP- and RN-mode 7.9 Get commands and Info s without corresponding set-commands DB Value Command Remark 0x7 GET_OC_TESTTIME Get the remaining OC_TESTTIME 0x74 GET_MODE Get the operation mode setting 0x75 GET_THRESHOLD_POS Get the configuration of overcurrent thresholds Pos 0 0x76 GET_THRESHOLD_ NEG Get the configuration of overcurrent thresholds Neg 0x79 GET_DEVICE_ID Get the device ID 0x7A GET_SW_VERSION Get the software version 0x7B GET_SERIAL_NMBER Get the serial number 0x7C GET_ARTICLE_NMBER Get the article number Retrievable in STOP- and RN-mode 9 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

30 7.0. Responses on Error- and Logdata 0 0x80 Response measurement errors 0x00 Response bitmask of occurred measurement errors (specific counter!= 0) Bits of measurement errors 0b Error ADC interrupt 0b Error Overflow ADC channel 0b Error nderflow ADC channel 0b Error Overflow ADC channel 0b Error nderflow ADC channel 0b Error V ref 0b Error current measurement implausible I I 0b Error thermal EMF correction Bits of measurement errors 0b Error current measurement I open circuit 0b Error voltage measurement open circuit 0b Error voltage measurement open circuit 0b Error voltage measurement open circuit 0b Error ntc-h open circuit 0b Error ntc-l open circuit 0b Error calibration data (offset-, gain error to high) Retrievable in STOP- and RN-mode, depends on get command DB 0 0x80 Response measurement errors Specific Error Counter 0x0 Error ADC interrupt 0x0 Error Overflow ADC channel 0x0 Error nderflow ADC channel 0x04 Error Overflow ADC channel 0x05 Error nderflow ADC channel 0x06 Error V ref 0x07 Error current measurement implausible I I 0x08 Error thermal EMF correction 0x09 Error current measurement I open circuit 0x0a Error voltage measurement open circuit 0x0b Error voltage measurement open circuit 0x0c Error voltage measurement open circuit 0x0d Error ntc-h open circuit 0x0e Error ntc-l open circuit 0x0f Error calibration data (offset-, gain error to high) 0xnn Number of occurred errors (max. 56) Retrievable in STOP- and RN-mode, depends on get command DB 0 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

31 Response on system errors 0 0x8 Response system errors 0x00 Response bitmask of occurred measurement errors (specific counter!= 0) Bits of measurement errors 0b Error Code CRC 0b Error Parameter CRC 0b Error CAN bus receive Data 0b Error CAN bus transmit Data 0b Error overtemp 0b Error undertemp 0b Error power failure 0b Error system clock Bits of measurement errors 0b Error system init 0b Error configuration 0b Error overcurrent detection 0b Error eeprom r/w 0b Error ADC Clock 0b Error Reset illegal opcode 0b Error Reset Watchdog 0b Error Reset EMC Retrievable in STOP- and RN-mode, depends on get command DB 0 0x8 Response system errors Specific Error Counter 0x0 Error Code CRC 0x0 Error Parameter CRC 0x0 Error CAN bus receive Data 0x04 Error CAN bus transmit Data 0x05 Error overtemp 0x06 Error undertemp 0x07 Error power failure 0x08 Error system clock 0x09 Error system init 0x0a Error configuration 0x0b Error overcurrent detection 0x0c Error eeprom r/w 0x0d Error ADC Clock 0x0e Error Reset illegal opcode 0x0f Error Reset Watchdog 0x0 Error Reset EMC 0xnn Number of occurred errors (max. 56) Retrievable in STOP- and RN-mode, depends on get command DB / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

32 Response on Overall Logdata 0 0x8 Response on Overall Logdata Details of Logdata: 0x0 Ampere hour counter overall (As) 0x0 Ampere hour counter charging (As) 0x0 Ampere hour counter discharging (As) 0x04 Energy counter overall (Wh) 0x05 Energy counter charging (Wh) 0x06 Energy counter discharging (Wh) 0x0 Runtime overall (s) 0x Runtime current within specified limits (s) 0x Runtime current outside specified limits (s) 0x Runtime voltage within specified limits (s) 0x4 Runtime voltage outside specified limits (s) 0x5 Runtime voltage within specified limits (s) 0x6 Runtime voltage outside specified limits (s) 0x7 Runtime voltage within specified limits (s) 0x8 Runtime voltage outside specified limits (s) 0x9 Runtime temperature within specified limits (s) 0xA Runtime temperature outside specified limits (s) 0xB Runtime overcurrent positive activated (s) 0xC Runtime overcurrent negative activated (s) 0x Current maximum (A) 0x Current minimum (A) 0x maximum (V) 0x4 minimum (V) 0x5 maximum (V) 0x6 minimum (V) 0x7 maximum (V) 0x8 minimum (V) 0x9 Temperature maximum ( C) 0xA Temperature minimum ( C) 0x xFF Highest byte of Logdata value (see signal definition) 0x xFF 4 0x xFF 5 0x xFF 6 0x xFF 7 0x xFF Lowest byte of Logdata value (see signal definition) / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

33 Response on Logdata Since Reset 0 0x8 Response on Logdata Since Reset Details of Logdata: 0x0 Ampere hour counter overall (As) 0x0 Ampere hour counter charging (As) 0x0 Ampere hour counter discharging (As) 0x04 Energy counter overall (Wh) 0x05 Energy counter charging (Wh) 0x06 Energy counter discharging (Wh) 0x0 Runtime overall (s) 0x Runtime current within specified limits (s) 0x Runtime current outside specified limits (s) 0x Runtime voltage within specified limits (s) 0x4 Runtime voltage outside specified limits (s) 0x5 Runtime voltage within specified limits (s) 0x6 Runtime voltage outside specified limits (s) 0x7 Runtime voltage within specified limits (s) 0x8 Runtime voltage outside specified limits (s) 0x9 Runtime temperature within specified limits (s) 0xA Runtime temperature outside specified limits (s) 0xB Runtime overcurrent positive activated (s) 0xC Runtime overcurrent negative activated (s) 0x Current maximum (A) 0x Current minimum (A) 0x maximum (V) 0x4 minimum (V) 0x5 maximum (V) 0x6 minimum (V) 0x7 maximum (V) 0x8 minimum (V) 0x9 Temperature maximum ( C) 0xA Temperature minimum ( C) 0x xFF Highest byte of Logdata value (see signal definition) 0x xFF 4 0x xFF 5 0x xFF 6 0x xFF 7 0x xFF Lowest byte of Logdata value (see signal definition) / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

34 7. Response CAN_ID Indicates which message type is being changed: 0x90 IVT_Msg_Result_I 0x9 IVT_Msg_Result_ 0x9 IVT_Msg_Result_ 0x9 IVT_Msg_Result_ 0 0x94 IVT_Msg_Result_T 0x95 IVT_Msg_Result_W 0x96 IVT_Msg_Result_As 0x97 IVT_Msg_Result_Wh 0x9D IVT_Msg_Command 0x9F IVT_Msg_Response 0 0x07 Low byte of desired bit CAN ID 0 0xFF High byte of desired bit CAN ID 0x00 0xFF Low byte of -bit serial number 4 0x00 0xFF Mid-low byte of -bit serial number 5 0x00 0xFF Mid-high byte of -bit serial number 6 0x00 0xFF High byte of -bit serial number 7.. Response CONFIG Result 0 0xAn Low-byte High-byte Response configuration of measurement n represents the According result (e.g. = IVT_Msg_Result_) Trigger mode: 0x0 Disabled 0x Triggered 0x Cyclic running Config result 0bnnn Bit 4: for future use 0bnnn Bit 5: for future use 0bnnn Bit 6: endianess, 0: Big Endian (default), : Little Endian 0bnnn Bit 7: sign of result, 0: default, : sign is changed (+ <-> -), changes polarity (+ <-> -), - 0xnnnn output-cycle-time / Measurement-interval / Trigger delay [ms] (+/- 0%) 4 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

35 7. Response on Get and Set commands Response messages are sent by the sensor as a response to a SET or GET command message. The response to a SET command works just like the response to a GET command. Response Reset Error- and Logdata 0 0xB0 Response Logdata 0x00 0x0 0x0 0x00 0x0.. 0xFF Reset Measurement Error Reset System Error Reset Logdata Since Reset All Counters reset - 6 0xnnnnnnnn Serial number DB of corresponding Error or Logdata value to be cleared Response Trigger 0 0xB Response Trigger - 0b nnnn nnnn Bit field for Channel to trigger, 0-unselected -selected, -all other bits are undefined and must be set to 0 Response Store 0 0xB Response STORE (Response after successful writing to non-volatile memory) 0xnn 0 = OK, Error else 0x00 0xFF High byte of -bit-serial number 0x00 0xFF Mid-high-byte of -bit-serial number 4 0x00 0xFF Mid-low byte of -bit-serial number 5 0x00 0xFF Low byte of -bit-serial number Response OC_TEST 0 0xB Response OC-Test Remaining OC-Test time (ms) Response MODE Mode means the whole sensor (config means the result message) 0 0xB4 Response operation mode 0x00 Stop 0x0 Run Startup operation mode 0x00 Stop 0x0 Run Code for level of access for future use +4 0x0000 ser 0xnnnn Expert (nnnn = access key) 0xyyyy OEM customer (yyyy = access key) 5 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

36 Response THRESHOLD_POS 0 0xB5 Response overcurrent thresholds positive current direction + -,767 +,767 Overcurrent set threshold in A-steps, 0 means off +4 -,767 +,767 Overcurrent reset threshold in A-steps, 0 means off Response THRESHOLD_NEG 0 0xB6 Response overcurrent thresholds negative current direction + -,767 +,767 Overcurrent set threshold in A-steps, 0 means off +4 -,767 +,767 Overcurrent reset threshold in A-steps, 0 means off Response DEVICE_ID 0 0xB9 Response DEVICE_ID Device-type 0x0 = IVT-Mod I-nominal / 6 0x06 00 A 0x 00 A 0xF 500 A 0xE,000 A 0x9C,500 A I-nominal % 6 0x4 00 A 0xC 00 A High nibble 0x4 500 A 0x8,000 A 0x4,500 A Number of Voltage Channels 0x0 0 channels low nibble 0x channel 0x channel 0x channel Trigger (T) / OCS(O) / Isolation(I) / -(none) 0x00 0x0 T 0x0 O 4 0x0 I 0x04 TO 0x05 TI 0x06 OI 0x07 TOI Type of communication 5 0x00 (none) 0x0 CAN (termination) 0x0 CAN (no termination) 6 0xnn nn nominal supply voltage [V] 6 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06

37 Response SW_VERSION 0 0xBA Response SW_VERSION Hardware variant 0xn xn 0: illegal version 0bnnn nnnn Bit mask: Represents a debug version if set 0x00 0xFF VERSION_NR x00 0xFF VERSION_REV x00 0xFF VERSION_YY Year 5 0x00 0xFF VERSION_MM Month 6 0x00 0xFF VERSION_DD Day 7 0x00 0xFF Internal use Response SERIAL_NMBER 0 0xBB Response serial number 0x00 0xFF High-byte serial number 0x00 0xFF Mid-high-byte serial number 0x00 0xFF Mid-low-byte serial number 4 0x00 0xFF Low-byte serial number Response ARTICLE_NMBER 0 0xBC Response article number 0x00 0xFF High-byte article number 0x00 0xFF 0x00 0xFF 4 0x00 0xFF 5 0x00 0xFF 6 0x00 0xFF 7 0x00 0xFF Low-byte article number Errormessage 0 0xFF Not allowed command, or not otherwise specified 0x00 0xFF MX ID of invalid command 7 / 8 Isabellenhütte Heusler GmbH & Co. KG // isascale@isabellenhuette.de // Current valid issue: // Issue 6-June-04 // Version.06