ioselect Z-NET Z-4RTD 4 Channel RTD Input Module

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1 4 Channel nput Module : PT00, PT000, PT500 & N00: 2, 3 & 4 wire 500 V solation, 6-way Modbus Communications Adjustable Sampling Time Accuracy to 0.2 C Configuration and Setup Software EC 63 Flexible Power (0-40 Vdc or 9-28 Vac) DN Rail Mount (TS 35) Removable Terminal Blocks The Z-NET model Z-4 has 4 configurable input channels. Each channel can be configured to a different type and have different filtering. The Z-4 allows the user to select between higher sampling time or higher resolution. The communications and sampling time are configured through software. The current version of the Z-NET software (requires a CP module) or Z-PROG may be used for configuration of the Z-4 parameters. The Z-NET Series offers flexible, cost effective solutions to industry s increasingly diverse applications including distributed control, data acquisition, SCADA & telemetry. An ideal solution for process control and management using distributed /O on plant and machinery. The /O modules can be widely distributed or grouped together and accept all standard field signals. Modbus RT protocol guarantees universal connectivity so applications are limitless: data acquisition, automation, telemetry control, etc. More flexibility from ioselect. General Specifications nput Resolution Power Supply Protection Power Consumption solation Overload Protection Status ndicators Operating Temp Storage Temp Humidity Weight Dimensions PT00, PT500, PT000, N00 4/3 bit sign (5 µv) 0 to 40 Vdc 9 to 28 Vac 50/60 Hz 400 W/s 0.7 W max. 500 Vac, between channels and power and communication ports 60 V Error, Power, RX & TX -0 to 65 C (4 to 49 F) -20 to 85 C (-4 to 85 F) 30 to 40 C non-cond. 20 g (4.2 oz) 00 x 2 x 7.5 mm (3.94 x 4.4 x.69 in) Performance Specifications Communications Port RS Wire Speed (baud) 9600, 9,200, 38,400, 57,600 Sampling Time bit, Protocol Modbus RT Standard PT00, PT500 & PT000 EN6075/A2 (TS-90) Class\Base Precision 0.05 nput Error Calibration 0.04% Linearity 0.025% Thermal Stability 0.0%/ C Excitation current PT500 and PT µa nominal PT00 and N µa nominal Lead Length Comp 20 Ω for PT00-30 Ω all others nput Filter -60 seconds Ordering nformation: OS-ZNET-4 4-Channel nput Module (V/) Accessories: OS-ZNET-DNAL Din Rail Power and Comms Connector OS-ZNET-DN2 Din Rail Power and Comms Connector for 2 modules OS-ZNET-DN4 Din Rail Power and Comms Connector for 4 modules OS-ZNET-DN8 Din Rail Power and Comms Connector for 8 modules GET OS ( )

2 4 Channel nput Module Ranges Temperature Range Resisistance Range Error ndication PT C ( F) 8.5 to 330 Ω R < 8 Ω; R > 34 Ω PT C ( F) 92.5 to 800 Ω R < 92.5 Ω; R > 85Ω PT C ( F) 69 to 295 Ω R < 80 Ω; R > 85 Ω N C ( F) 69 to 295 Ω R < 60 Ω; R > 30 Ω Wiring nstructions Ch Ch 2 Ch 3 Ch Wire 3-Wire 2-Wire NOTE: All input terminals must have a connection. is wired to for a 3-wire. A 2 wire requires - wired to - and wired to on the terminal block. Rear Connector RS485 GND Power Supply RS485 A Power Supply RS485 B DC0 9 to 40 Vdc or 9 to 28 Vac Not Polarity Sensitive *Do not exceed upper limits of supply voltage! RS232 Serial Port Cable GND Tx Rx 3.5 mm Mini-Plug GND Tx Rx Configuration Baud Rate & Modbus Address Selection Baud Address EEPROM Bus Terminator 90 OFF ON NOTE: Default configuration : Address 00, baud, no parity, stop bit! -9 is not used. t should remain in the Off position CATON: Set the switches prior to applying power or connecting the input of the ZNET Z-4 Filtering The filtering can be set for every channel. The filter consists of two independent low-pass filters: -Filter FR, a running average, able to increase the rejection of disturbances to the mains power line frequency and to reduce measuring noise. -Filter R exponential, with programmable time constant, able to dampen fluctuations. f an input variation higher than the threshold T is detected, both filters are forced to adapt rapidly to the new value, stabilizing it only later. The filter is set with the three least significant bits of MODBS registers (refer to section ). The following is a table containing all adjustable filter types. The propagation time (90%) is indicated for each filter. SET SAMPLNG FLTER TYPE PROP. TME 90% Bit ADC Hz <T >T Not Present 38 ms 38 ms Average 97 ms 86 ms 00 4 Average 338 ms 49 ms 0 4 Average exp 83 ms 49 ms 00 4 Average exp 2.5 s 49 ms 0 4 Average exp 6.7 s 49 ms 0 4 Average exp 20 s 49 ms 4 Average exp 60 s 49 ms GET OS ( )

3 4 Channel nput Module nstallation The ZNET Z-4 is designed to be mounted on 35 mm DN rail. Adequate ventilation may be needed to ensure optimal operating conditions. Avoid mounting modules over devices that generate heat. f operating at the high end of the temperature specifications (near 45 C/ 3 F) it may be necessary to separate the modules by at least 5 mm (0.2 in). Other Conditions that may Contribute to High Operational Temperature: High power voltage (> 30Vdc / > 26 Vac) Powering an input sensor and one output consistently at a high output level Power supply upper limits must not be exceeded. Excessive power level will result in damage to the module. Serial nterface The RS485 serial interface is based on a balanced differential communication line with typical impedance of 20 ohm. The maximum length of the connection is not defined but depends on the communication speed, the signal-interference ratio and the cable quality. Generally, the maximum length with guaranteed operation is fixed at 200 m. The connection cable does not have to be shielded if the distance is only a few meters in a low noise electrical environment. For distances between 5 and 00 m, a shielded twisted cable can be used without particular specifications; whereas, for connections over 00 m you are advised to use, for example, CEAM CPR 6003 or BELDEN 984 cable. The communication line should preferably be of the chain type, avoiding star configurations and limiting branches to a few meters. Terminate the ends of the lines by setting the related dip-switch on the module to ON, or by fitting a 20 Ω resister parallel to the line. Connect the cable shield to the terminal on both sides, and connect to earth on at least one side. f necessary to reduce interference, connect the other side to earth by means of a 0 nf capacitor. The Z-4 has MODBS 6 bit (words) registers, accessible by RS485 or RS232 serial communication. This means data MACHNE D : contain the module s D: 22 (hexadecimal: 0x7) 4000 R can be acquired from a PC or a controller. The next sections Bit [7:0]: contain the firmware s revision. describe the supported MODBS commands, and the STATS_NP Status of input channels R functions of the registers. SPPORTED MODBS COMMANDS Code Function Description 03 * Read Holding Registers Read up to 6 word registers 04 * Read nput Registers Read up to 6 word registers 06 Write Singe Register Write a word register 6 Write Multiple Registers Write up to 6 word registers * The two functions have the same effect HOLDNG REGSTERS The 6-bit Holding Registers have the following structure: Most Significant bit Word (6 Bits): MODBS Register The Bit notation [x:y] shown in the table indicates all the bits from x to y. For example, Bit [2:] indicates bit 2 and bit, and illustrates the meaning of the various linked combinations of the values of the two bits. Remember that the MODBS 3, 4, 6 and 6 single and multiple reading and writing functions can be executed on the following registers. Default values are indicated with the * symbol GET OS ( ) Bit ndex Least Significant bit Bit [5] = Fault on Channel Bit[4] = Fault on Channel 2 Bit [3] = Fault on Channel 3 Bit [2] = Fault on Channel 4 Bit [] Bit [0] Bit [9] Bit [8] CHAN_TENTHS = Fault on Channel sensor = Fault on Channel 2 sensor = Fault on Channel 3 sensor = Fault on Channel 4 sensor Bit [7] = Communication error with Channel Bit [6] = Communication error with Channel 2 = Communication error with Channel 3 = Communication error with Channel 4 = nit Error on Channel Bit [2] = nit Error on Channel 2 Bit [] = nit Error on Channel 3 Bit [0] = nit Error on Channel 4 CHAN2_TENTHS Channel measurement (tenths of C or tenths or hundredths of Ohms) Temperature of channel in tenths of C or Channel 2 measurement (tenths of C or tenths or hundredths of Ohms) Temperature of channel 2 in tenths of C or R R

4 Z-NET Z-4 4 Channel nput Module CHAN3_TENTHS CHAN4_TENTHS CHAN_FLOAT_H CHAN_FLOAT_L CHAN2_FLOAT_H CHAN2_FLOAT_L CHAN3_FLOAT_H CHAN3_FLOAT_L CHAN4_FLOAT_H CHAN4_FLOAT_L STATS_NP Channel 3 measurement (tenths of C or tenths or hundredths of Ohms). Temperature of channel 3 in tenths of C or Channel 4 measurement (tenths of C or tenths or hundredths of Ohms). Temperature of channel 4 in tenths of C or Measurement of channel in floating point Measurement of channel in floating point GET OS ( ) Measurement of channel 2 in floating point Measurement of channel 2 in floating point Measurement of channel 3 in floating point Measurement of channel 3 in floating point Measurement of channel 4 in floating point Measurement of channel 4 in floating point Copy of register containing the status of the input channels R R R/W R 4000 R 400 R 4002 R 4003 R R 4004 R 4005 R CHAN_WRE Measurement of channel connection wire 4006 R Value of the channel connection wire in mω CHAN2_WRE Measurement of channel 2 connection wire 4007 R Value of the channel 2 connection wire in mω CHAN3_WRE Measurement of channel 3 connection wire 4008 R Value of the channel 3 connection wire in mω CHAN4_WRE Measurement of channel 4 connection wire 4009 R ERR_CH_CH2 Bit[5] Bit[4] Bit[3] Bit[2] Bit[] Bit[0] Bit[9] Bit[8] Value of the channel 4 connection wire in mω Details of Errors on Channel (MSB) & Channel (2 LSB) = Power supply voltage error (ch) = Reception error (ch) = EEPROM saving error (ch) = EEPROM saving blocked (ch) = Reading error of Resistor (Rx) (ch) = Reading error of 3 wire resistor (ch) = Acquisition error (ch) = Reading error CRC EEPROM (ch) R Bit[2] Bit[] Bit[0] ERR_CH3_CH4 Bit[5] Bit[4] Bit[3] Bit[2] Bit[] Bit[0] Bit[9] Bit[8] Bit[7] Bit[6] Bit[2] Bit[] Bit[0] = EEPROM saving error (ch2) = EEPROM saving blocked (ch2) = Reading error of resistor (ch2) = Reading error of 3 wire resistor (ch2) = Acquisition error (ch2) = Reading error CRC EEPROM (ch2) Details of errors on Channel 3 (MSB) & Channel 4 (LSB) = Power supply voltage error (ch3) = Reception error (ch3) = EEPROM saving error (ch3) = EEPROM saving blocked (ch3) = Reading error of Resistor (Rx) (ch3) = Reading error of 3 wire resistor (ch3) = Acquisition error (ch3) = Reading error CRC EEPROM (ch3) = Power supply voltage error (ch4) = Reception error (ch4) = EEPROM saving error (ch4) = EEPROM saving blocked (ch4) = Reading error of Resistor (Rx) (ch4) = Reading error of 3 wire resistor (ch4) = Acquisition error (ch4) = Reading error CRC EEPROM (ch4) RESET Module reset R/W Write value 0XCCCC to reset the module ADDR Module s address and parity control R/W Bit[7:0] Set the module s address. Permissible values from 0x00 to 0xFF (0-255). Default = Parity: 0 = None, = Even, 2 = Odd ADDR Modules baud rage and response time R/W Bit[7:0] Set the Baud rate: 0x00: 4800 Baud 0x0: 9600 Baud 0x02: 9200 Baud 0x03: Baud (Default) 0x04: Baud 0x05: 5200 Baud 0x06: 200 Baud 0x07: 2400 Baud Response delay time in characters that represent the number of pauses of 6 characters each to be entered between the end of the Rx message and the start of the Tx message. Default =0. CONFG_CH Configuration for channel R/W For internal use only, do not modify Bit[7:6] Sensor Type: 0 = PT00 (default); = N00; 2

5 Bit[2:0] GET OS ( ) CONFG_CH2 Configuration for channel R/W For internal use, do not modify Bit [7:6] Sensor Type: 0 = PT00 (default); = N00; 2 CONFG_CH3 Configuration for channel R/W For internal use, do not modify Bit [7:6] Sensor Type: 0 = PT00 (default); = N00; 2 CONFG_CH4 Configuration for channel R/W Bit [7:6] Sensor Type: 0 = PT00 (default); = N00; 2 AX_SETTNGS Additional configuration register 4004 R/W Bit[5] Bit[4:8] Floating point interpretation: 0 = The high word is transmitted first (default); = the low word is transmitted first Reserved and not modifiable Bit[7] Fault on Channel signalled by LED: 0 = enabled (default); = disabled Bit[6] Fault on Channel 2 signalled by LED Fault on Channel 3 signalled by LED Fault on Channel 4 signalled by LED Action in case of fault (channel ): 0 = The temperature/resistance is forced to the programmed fault value (default); = The value is frozen at the last acquired value. Bit[2] Action in case of fault (channel 2) Bit[] Action in case of fault (channel 3) Bit[0] Action in case of fault (channel 4) VAL_FALT_ Value loaded in case of fault on channel VAL_FALT_2 Value loaded in case of fault on channel 2 VAL_FALT_3 Value loaded in case of fault on channel 3 VAL_FALT_4 Value loaded in case of fault on channel R/W R/W R/W R/W Clarifying nformation Dimensions 4 Channel nput Module Registers should be interpreted as follows: - n Degree tenths, with sign, when they return a temperature. - n tenths, without sign, when they return a resistance for PT000 or PT n hundredths without sign when they return a resistance for PT00 or N00. The value in registers is copied respectively in registers , when the corresponding bit in register 4004 is 0. The same value is converted in floatingpoint, with factor 0 or 00 according to the type of data item returned. Terminal Connections. Channel 2. Channel V 3. Channel V- 4. Channel - 5. Channel 2 6. Channel 2 V 7. Channel 2 V- 8. Channel 2-9 Channel 3 0. Channel 3 V. Channel 3 V- 2. Channel 3-3. Channel 4 4. Channel 4 V 5. Channel 4 V- 6. Channel 4 - EN EN EN ERR PWR RX TX COM ioselect, ncorporated P: , F: , info@ioselect.com rev: 7/08