Sierra Monitor Corporation Sentry Controller Gas Detector manual

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Table of contents for the manual

  • Page 1

    Sierra Monitor Corp. 1991 Tarob Ct. Milpitas, CA 95035 USA 408-262-6611, Toll Free 800-727-4377, FAX: 408-262-9042 Visit our Web Site: www.sierramonitor.com E-Mail: sierra@sierramonitor.com Sentry Controller MODBUS Memory Map (Enhanced) December 15, 1998 Updated March 4, 2005[...]

  • Page 2

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 1 Sentry Controller MODBUS Memory Map Detail 1 All Registers are MODB US 16 bit registers 2 There are five different ways of using M ODBUS registers ( see italic reference number in left colu mn for each address ) 2.1 As an Analog Value: In most cases these values are scaled b y multiplying by 10. 2[...]

  • Page 3

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 2 Read Only Parameters Modbus Address Parameter Units FIX EGU Discrete 40001:0 High alarm bi ts - sensor 1 40001:1 High alarm bi ts - sensor 2 40001:2 High alarm bi ts - sensor 3 40001:3 High alarm bi ts - sensor 4 40001:4 High alarm bi ts - sensor 5 40001:5 High alarm bi ts - sensor 6 40001:6 High [...]

  • Page 4

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 3 Modbus Address Parameter Units FIX EGU 40007:0 High alarm relay lat ched – sensor 1 40007:1 High alarm relay lat ched – sensor 2 40007:2 High alarm relay lat ched – sensor 3 40007:3 High alarm relay lat ched – sensor 4 40007:4 High alarm relay lat ched – sensor 5 40007:5 High alarm relay[...]

  • Page 5

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 4 Modbus Address Parameter Units FIX EGU 40020:0 Sensor 1: Status 2 Sensor Disconnected (Trouble Bits) 40020:2 Sensor 1: Voltage Re gulator Failure 40020:3 Sensor 1: Sensor Bad 40020:4 Sensor 1: Duplicate Sensor 40020:5 Sensor 1: Timer Fai lure 40020:6 Sensor 1: Sensor Bridge Failure (C H 4 ) 40020:[...]

  • Page 6

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 5 Modbus Address Parameter Units FIX EGU 40040:0 Sensor 3: Sensor Disconnected (Trouble Bits) 40040:2 Sensor 3: Voltage Regul ator Failure 40040:3 Sensor 3: Sensor Bad 40040:4 Sensor 3: Duplicate Sensor 40040:5 Sensor 3: Timer Fai lure 40040:6 Sensor 3: Sensor Bridge Failure (Com bustibles) 40040:7 [...]

  • Page 7

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 6 Modbus Address Parameter Units FIX EGU 40060:0 Sensor 5: Sensor Disconnected (Trouble Bits) 40060:2 Sensor 5: Voltage Regul ator Failure 40060:3 Sensor 5: Sensor Bad 40060:4 Sensor 5: Duplicate Sensor 40060:5 Sensor 5: Timer Fai lure 40060:6 Sensor 5: Sensor Bridge Failure (Com bustibles) 40060:7 [...]

  • Page 8

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 7 Modbus Address Parameter Units FIX EGU 40080:0 Sensor 7: Sensor Disconnected (Trouble Bits) 40080:2 Sensor 7: Voltage Regul ator Failure 40080:3 Sensor 7: Sensor Bad 40080:4 Sensor 7: Duplicate Sensor 40080:5 Sensor 7: Timer Fai lure 40080:6 Sensor 7: Sensor Bridge Failure (Com bustibles) 40080:7 [...]

  • Page 9

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 8 Analog Process Variables Modbus Address Parameter Units FIX EGU 40111 Sensor 1 concentration % / PPM 0 - 6553.5 40112 Sensor 2 concentration % / PPM 0 - 6553.5 40113 Sensor 3 concentration % / PPM 0 - 6553.5 40114 Sensor 4 concentration % / PPM 0 - 6553.5 40115 Sensor 5 concentration % / PPM 0 - 6[...]

  • Page 10

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 9 Modbus Address Parameter Units FIX EGU 40156 Sensor 6 Power (H 2 S and COMB only ) 40157 Sensor 7 Power (H 2 S and COMB only ) 40158 Sensor 8 Power (H 2 S and COMB only ) 40159 Sensor 1 Type (1,2,3 or 4) 40160 Sensor 2 Type (1,2,3 or 4) 40161 Sensor 3 Type (1,2,3 or 4) 40162 Sensor 4 Type (1,2,3 o[...]

  • Page 11

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 10 Modbus Address Parameter Units FIX EGU 40224 Sensor 1 Input Value - Multiplex 0 0 - 6553.5 40225 Sensor 1 Input Value - Multiplex 1 0 - 6553.5 40226 Sensor 1 Input Value - Multiplex 2 0 - 6553.5 40227 Sensor 1 Input Value - Multiplex 3 0 - 6553.5 40228 Sensor 1 Input Value - Multiplex 4 0 - 6553.[...]

  • Page 12

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 11 Modbus Address Parameter Units FIX EGU 40266 Sensor 3 High Alarm Ti me Mont h 40267 Sensor 3 High Alarm Ti me Day 40268 Sensor 3 High Alarm Ti me Hr 40269 Sensor 3 High Alarm Ti me Min 40270 Sensor 3 Low Alarm Tim e Month 40271 Sensor 3 Low Alarm Tim e Day 40272 Sensor 3 Low Alarm Tim e Hr 40273 [...]

  • Page 13

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 12 Modbus Address Parameter Units FIX EGU 40311 Sensor 4 High Conc. Tim e Month 40312 Sensor 4 High Conc. Tim e Day 40313 Sensor 4 High Conc. Tim e Hr 40314 Sensor 4 High Conc. Tim e Min 40315 Sensor 4 Low Conc. Time M onth 40316 Sensor 4 Low Conc. Time Day 40317 Sensor 4 Low Conc. Time Hr 40318 Sen[...]

  • Page 14

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 13 Modbus Address Parameter Units FIX EGU 40356 Sensor 5 Input Value - Multiplex 0 0 - 6553.5 40357 Sensor 5 Input Value - Multiplex 1 0 - 6553.5 40358 Sensor 5 Input Value - Multiplex 2 0 - 6553.5 40359 Sensor 5 Input Value - Multiplex 3 0 - 6553.5 40360 Sensor 5 Input Value - Multiplex 4 0 - 6553.[...]

  • Page 15

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 14 Modbus Address Parameter Units FIX EGU 40398 Sensor 7 High Alarm Ti me Mont h 40399 Sensor 7 High Alarm Ti me Day 40400 Sensor 7 High Alarm Ti me Hr 40401 Sensor 7 High Alarm Ti me Min 40402 Sensor 7 Low Alarm Tim e Month 40403 Sensor 7 Low Alarm Tim e Day 40404 Sensor 7 Low Alarm Tim e Hr 40405 [...]

  • Page 16

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 15 Modbus Address Parameter Units FIX EGU 40443 Sensor 8 High Conc. Tim e Month 40444 Sensor 8 High Conc. Tim e Day 40445 Sensor 8 High Conc. Tim e Hr 40446 Sensor 8 High Conc. Tim e Min 40447 Sensor 8Low Conc. Time M onth 40448 Sensor 8 Low Conc. Time Day 40449 Sensor 8 Low Conc. Time Hr 40450 Sens[...]

  • Page 17

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 16 Read/Write Parameters High Alarm Limits Modbus Address Parameter Units FIX EGU 40501 Sensor 1 % / PPM 0 - 65535 40502 Sensor 2 % / PPM 0 - 65535 40503 Sensor 3 % / PPM 0 - 65535 40504 Sensor 4 % / PPM 0 - 65535 40505 Sensor 5 % / PPM 0 - 65535 40506 Sensor 6 % / PPM 0 - 65535 40507 Sensor 7 % / P[...]

  • Page 18

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 17 40550 Sensor 4 Calib. Coeff. 1 k1 ccn ccn ccn 40551 2 k2 vmin vmax vmi n 40552 3 k3 vmax - vmax 40553 4 n1 gasfac - - 40554 5 n2 - - - 40555 6 n3 - - - 40556 7 bp12 - - - 40557 8 bp23 - - - 40558 9 ccn - - - 40560 Sensor 5 Calib. Coeff. 1 k1 ccn ccn ccn 40561 2 k2 vmin vmax vmi n 40562 3 k3 vmax [...]

  • Page 19

    Sentry MODBUS I/O Memory Map March 4, 2005 Page : 18 Control Bits Modbus Address Parameter Units FIX EGU 40601 System Reset 40602 Alarm Reset 40603 History Reset 40610 System Tim e Month 40611 System Time Day 40612 System Time Hr 40613 System Time Min 40614 Latch High Alarm s - Sensor 1 40615 Latch High Alarm s - Sensor 2 40616 Latch High Alarm s -[...]