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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 % / PPM 0 - 65535
40508 Sensor 8 % / PPM 0 - 65535
Low Alarm Limits
40511 Sensor 1 % / PPM 0 - 65535
40512 Sensor 2 % / PPM 0 - 65535
40513 Sensor 3 % / PPM 0 - 65535
40514 Sensor 4 % / PPM 0 - 65535
40515 Sensor 5 % / PPM 0 - 65535
40516 Sensor 6 % / PPM 0 - 65535
40517 Sensor 7 % / PPM 0 - 65535
40518 Sensor 8 % / PPM 0 - 65535
H
2
S/CH
4
/Oxy/CO
40520 Sensor 1 Calib. Coeff. 1 k1 ccn ccn ccn
40521 2 k2 vmin vmax vmin
40522 3 k3 vmax - vmax
40523 4 n1 gasfac - -
40524 5 n2 - - -
40525 6 n3 - - -
40526 7 bp12 - - -
40527 8 bp23 - - -
40528 9 ccn - - -
40530 Sensor 2 Calib. Coeff. 1 k1 ccn ccn ccn
40521 2 k2 vmin vmax vmin
40532 3 k3 vmax - vmax
40533 4 n1 gasfac - -
40534 5 n2 - - -
40535 6 n3 - - -
40536 7 bp12 - - -
40537 8 bp23 - - -
40538 9 ccn - - -
40540 Sensor 3 Calib. Coeff. 1 k1 ccn ccn ccn
40541 2 k2 vmin vmax vmin
40542 3 k3 vmax - vmax
40543 4 n1 gasfac - -
40544 5 n2 - - -
40545 6 n3 - - -
40546 7 bp12 - - -
40547 8 bp23 - - -
40548 9 ccn - - -