DIARAD_Sovim Version du :15/05/03 Diarad Interface Document SovIM (DIDIM) page :1 rev4 DIARAD SOVIM

Transcription

1 Diarad Interface Document SovIM (DIDIM) page :1 rev4 DIARAD SOVIM Référence : SOVIM -IRM-ELE-B-W001 Edition : 1 Rev : 4 OBJET DU DOCUMENT : D.I.D : Diarad Interface Document sovim To define the hardware interface between the DPU and Diarad REDACTION : A.Chevalier

2 Diarad Interface Document SovIM (DIDIM) page :2 rev4 1. Table of contents 1. Table of contents Modifications Introduction Block schematic Function of interface J09 : Functions of interface J Functions of interface K Functions of interface K Signals at the interfaces Power connector J Commands & data connector J Signals on the interface K Signals on the interface K Grounding philosophy Timing of data / commands Command Word Hardware status word Diarad_Sovim schematics... 14

3 Diarad Interface Document SovIM (DIDIM) page :3 rev4 2. Modifications Edition Révision Date Pages modified /03/00 Change definitions of K04,K03,J /04/00 Change def off J08,K /02/01 Update acronyms names 5.3 & /03/01 Changed sex of connector J /02/02 Add definition of K /05/03 Modification of K03,K04

4 Diarad Interface Document SovIM (DIDIM) page :4 rev4 3. Introduction The flight conditions on the ISS drive us to modify some of the hardware of the diarad compared to the Eureca mission. For instance, we will not have the two photometric channels nor the four quadrant monitor. We will use those channels to increase the housekeeping s to better the knowledge of the thermal behavior of the instrument. There is no change on the electrical interface of the instrument, there are some changes on the tests connectors to improve the test functionalities. 4. Block schematic Radiometric head K01 Analoog J08 electronics DPU S J09 K04 K03 Tests connectors One can see on this sketch the different connectors coming out the electronics box of Diarad_Sovim. K01 is the interface between the radiometric head and the DIARAD electronics. J08 is the digital interface to the DPU. J09 is the Power cable. K03 and K04 are tests connectors used for ground tests. For flight operations, some shortcircuits will be implemented on those connectors.

5 Diarad Interface Document SovIM (DIDIM) page :5 rev Function of interface J09 : - Power distribution. (28V) 4.2. Functions of interface J08 - To receive commands (by radiometer from DPU). - Send data and status to the DPU Functions of interface K04 - Servo and reference output/input - Internal power test - Mark frames with TTL level on sync Functions of interface K03 - Température test - Voltage reference test - Analog Voltages and Current on Rad Head Function of K01 - K01 is not an interface connector, it is the connector between the instrument sensor head and the diarad electronics.

6 Diarad Interface Document SovIM (DIDIM) page :6 rev4 5. Signals at the interfaces 5.1. Power connector J09 MDM 15S on Diarad Electronics Box N Pin Désignation 1 +28V PSL 2 +28V PSL 3 +28V PSL 4 +28V PSL 5 n.c. 6 n.c. 7 SGND 8 n.c. 9 Return 28V PSR 10 Return 28V PSR 11 Return 28V PSR 12 Return 28V PSR 13 n.c. 14 n.c. 15 Structure of Diarad (gold over nickel) 5.2. Commands & data connector J08 MDM 37P on Diarad Electronics Box MDM-37PCBR P-A174 Shields shall be connected to GND inside the DPU only, no connection inside DIARAD electronics to ground. N Pin Couleur Désignation N Pin Couleur Désignation 1 Noir Canal 1 Hi C1S 20 Bl Noir Brun Canal 1 Shield C1Sh 2 Brun Canal 1 Lo C1R 21 Bl Noir Rouge Canal 2 Hi C2S 3 Rouge Canal 2 Shield C2Sh 22 Bl Noir Orange Canal 2 Lo C2R 4 Orange Canal 3 Hi C3S 23 Bl Noir Jaune Canal 3 Shield C3Sh 5 Jaune Canal 3 Lo C3R 24 Bl Noir Vert Canal 4 Hi C4S 6 Vert Canal 4 Shield C4Sh 25 Bl Noir Bleu Canal 4 Lo C4R 7 Bleu Canal 5 Hi C5S 26 Bl Noir Violet Canal 5 Shield C5Sh 8 Violet Canal 5 Lo C5R 27 Bl Noir Gris Canal 6 Hi C6S 9 Gris Canal 6 Shield C6Sh 28 Bl Brun Rouge Canal 6 Lo C6R 10 Blanc Canal 7 Hi C7S 29 Bl Brun Orange Canal 7 Shield C7Sh 11 Bla Noir Canal 7 Lo C7R 30 Bl Brun Jaune Canal 8 Hi C8S 12 Bla Brun Canal 8 Shield C8Sh 31 Bl Brun Vert Canal 8 Lo C8R 13 Bla Rouge Shift Clock Hi USCL 32 Bl Brun Bleu Shift Clock Shield USCS 14 Bla Orange Shift Clock Lo USCR 33 Bl Brun Violet Command Hi UCML 15 Bla Jaune Command Shield UCMS 34 Bl Brun Gris Command Lo UCMR 16 Bla Vert Status Hi EXSL 35 Bl Rouge Orang Status Shield EXSS 17 Bla Bleu Status Lo EXSR 36 Bl Rouge Jaune Lamp Clk Hi LCL 18 Bla Violet Lamp. Shield LSh 37 Bl Rouge Vert Lamp Clk Lo LCR 19 Bla Gris

7 Diarad Interface Document SovIM (DIDIM) page :7 rev Signals on the interface K03 This connector is a CANNON DB37S on DIARAD_SOVIM electronics. The interface K03 is the analog tests connector wich will be used during the integration and validation tests at delivery. N Pin Désignation N Pin Désignation 1 IA1 20 IA3 2 IA2 21 IA4 3 VREF 22 T2 4 V6 23 V6 5 AGSE-2 24 IRH 6 ILH 25 IRL 7 ILL 26 VRH 8 VLH 27 VRL 9 VLL 28 Pt100MH 10 Pt100H 29 Pt100ML 11 Pt100L 30 V 1 12 V1 31 IA6 13 IA5 32 FBAL 14 2Vref 33 T8 15 T3 34 V4 16 T7 35 V 4 17 AGSE3 36 V3 18 V5 37 V 3 19 V Signals on the interface K04 This connector is a CANNON DB25S on DIARAD_SOVIM electronics. This connector will be used during validation tests before delivery, some short-circuits between «SERVO_OUT & SERVO_IN» and «REF_OUT & REF_IN» will be implemented on a male connector for flight operations. N Pin Désignation N Pin Désignation 1 CBAL 14 TP4 2 MBAL 15 AGnd1 3 ExtBal 16 T1 4 TP3 17 T6 5 REFIN 18 REFOUT 6 REFRET1 19 Clk 7 GND 20 5+TEST 8 Cmd 21 DGND3 9 SYNC 22 V 2 10 SERVIN 23 V2 11 SERVOUT 24 LCL 12 PSR 25 LCR 13 PSL

8 Diarad Interface Document SovIM (DIDIM) page :8 rev4 Identification des conducteurs Cannon 50S côté tête CR007 N Pin Désignation Vers Couleur 1 Right thermopile RTM J1_2 Jaune 2 Right heater power RHP J2_21 Jaune 3 Right heater measure RHM J2_27 Jaune 4 Right motor signal RMS J4_10 5 Right motor return RMR J4_12 6 Open Signal Right OSR J4_15 7 Close Signal Right CSR J4_13 8 Opto Right Open Power J4_14 OROP 9 Opto Right Close Power J4_11 ORCP 10 Left motor signal J4_1 LMS 11 Left motor return J4_2 LMR 12 Opto Left Open Power J4_5 OLOP 13 Opto Left Close Power J4_3 OLCP 14 Right thermopile return RTR J1_5 Jaune 15 Right heater power rtn J2_34 Jaune RHPR 16 Right heater measure rtn J2_28 Jaune RHMR 17 Shield Moteurs MSH J4_19 2 fils 18 Vcc Opto J5_67 2 fils Ovcc 19 Temperature peltier left J3-22 TP1L 20 Temperature peltier left J3-23 TP1H 21 Temperature peltier right J3-48 TP2L 22 Temperature peltier right J3-49 TP2H 23 Peltier Left J3-2 P1L 24 Peltier Left J3-1 P1H 25 Peltier right J3-4 P2L 26 Left thermopile J1_1 Jaune LTM 27 Left heater power LHP J2_20 Jaune 28 Left heater measure J2_25 Jaune

9 Diarad Interface Document SovIM (DIDIM) page :9 rev4 LHM 29 Peltier right P2H 30 Left mirror T2H J3_16 31 Right mirror T4H J3_18 32 Base T3H J3_63 33 Close Signal Left J4_4 CSL 34 Open Signal Left OSL J4_6 35 Left aperture T1H J3_14 36 Left aperture J3_15 T1L 37 Right aperture J3_65 T5H 38 Right aperture J3_66 T5L 39 Left thermopile rtn LTR J1_4 Jaune 40 Left heater rtn J2_23 Jaune LHPR 41 Left heater measure rtn J2_26 Jaune LHMR 42 SHPEL Shield Peltier 43 Left mirror T2L J3_17 44 Right mirror T4L J3_19 45 Base T3L J3_64 46 Gnd Opto J3_39 Osgnd2 47 Gnd Opto J3_39 Osgnd1 48 Gnd Opto J3_38 Opgnd2 49 Shield thermopiles J1-3 2 fils SHTER 50 Gnd Opto Opgnd1 J3_38

10 Diarad Interface Document SovIM (DIDIM) page :10 rev Grounding philosophy. Each instrument have is own ground point, the wiring between the instruments is done by a unique and known path. In our case, there is only one wire to our secondary ground it is the signal SGND on J Timing of data / commands BIT CMD/STAT DATA UIM SHIFT CLOCK BIT ACCEPT WORD ACCEPT -0.5ms -19.6µs This is the traditional timing diagram, but the exact timing will be defined by PMOD to take into account the timing changes in the TIM. According to the information reseived from PMOD during the meeting of 04/04/2000 to 06/04/2000, the UIM shift Clock will have a frequency of 52 KHz so the duration of transmission is at least 16* E-6 = µsec, and the bit 15 is transmitted first.

11 Diarad Interface Document SovIM (DIDIM) page :11 rev Command Word The command word is transmitted serially least significant bit first. Bit N Definition 1 STRE : Step reference 2 M6B0 : Mux 6 Bit 0 3 M6B1 : Mux 6 Bit 1 4 M6B2 : Mux 6 Bit 2 5 M5B0 : Mux 5 Bit 0 6 M5B1 : Mux 5 Bit 1 7 M5B2 : Mux 5 Bit 2 8 M14B0 : Mux 1 to 4 Bit 0 9 M14B1 : Mux 1 to 4 Bit 1 10 M14B2 : Mux 1 to 4 Bit 2 11 SSICMD : Servo Side Cmd 12 SERCMD : Servo On Cmd 13 BALCMD : Reference in parallel Cmd 14 REFCMD : Reference On Cmd 15 LCMD : Left Shutter Cmd 16 RCMD : Right Shutter Cmd 5.8. Hardware status word The hardware status is read least significant bit first Bit N Definition REF : Reference On Status 5 BAL : Reference in parallel Status 6 SER : Servo On Status 7 SSI : Servo Side Status 8 Sync : Synchro with external device 9 LSCS : Left Shutter Close 10 LSOS : Left Shutter Open 11 RSCS : Right shutter close 12 RSOS :Right shutter open 13 LCL 14 REFS :Step reference status

12 Diarad Interface Document SovIM (DIDIM) page :12 rev4 6. Diarad_Sovim schematics The schematics will be given on a separate documents, the list of the drawings is the following : Reference Revision Date Description DIARAD_HEAD 2 21/03/2002 Radiometric head BACKPLAN_DIARAD 2 25/02/2002 Backplane wiring Board1_DIARAD 1 24/02/2003 Servo, relays and boosters Board2_DIARAD 1 13/08/2002 Reference and channels 1_4 Board3_DIARAD 1 20/03/2003 Temperatures and channels 5,6 Board4_DIARAD 1 09/10/2002 Shutters logic and step reference Board5_DIARAD 3 25/02/2003 Power, commands and status