Sierra Monitor Corporation Sentry Controller Gas Detector - Manual (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 Regulator Failure
40020:3 Sensor 1: Sensor Bad
40020:4 Sensor 1: Duplicate Sensor
40020:5 Sensor 1: Timer Failure
40020:6 Sensor 1: Sensor Bridge Failure (CH
4
)
40020:7 Sensor 1: Type Error
40021:0 Sensor 1: Status 1 Enabled
40021:1 Sensor 1: Auto Calibration Enabled
40021:2 Sensor 1: Low Alarm Latch
40021:3 Sensor 1: Calibrated
40021:4 Sensor 1: Zone Option Enabled
40021:5 Sensor 1: Calibration Table Initialized
40021:6 Sensor 1: H
2
S Sensor Resistance too high
40021:7 Sensor 1: Operate Mode (as opposed to Warm Up Mode)
40022:0 Sensor 1: Status 4 High Alarm Latch
40022:1 Sensor 1: Low Sensitivity
40022:2 Sensor 1: Sensor not Valid
40024:0 Sensor 1: Concentration % / PPM 0 - 6553.5
40030:0 Sensor 2: Sensor Disconnected (Trouble Bits)
40030:2 Sensor 2: Voltage Regulator Failure
40030:3 Sensor 2: Sensor Bad
40030:4 Sensor 2: Duplicate Sensor
40030:5 Sensor 2: Timer Failure
40030:6 Sensor 2: Sensor Bridge Failure (Combustibles)
40030:7 Sensor 2: Type Error
40031:0 Sensor 2: Enabled
40031:1 Sensor 2: Auto Calibration Enabled
40031:2 Sensor 2: Low Alarm Latch
40031:3 Sensor 2: Calibrated
40031:4 Sensor 2: Zone Option Enabled
40031:5 Sensor 2: Calibration Table Initialized
40031:6 Sensor 2: H
2
S Sensor Resistance too high
40031:7 Sensor 2: Operate Mode (as opposed to Warm Up Mode)
40032:0 Sensor 2: High Alarm Latch
40032:1 Sensor 2: Low Sensitivity
40032:2 Sensor 2: Sensor not Valid
40034:0 Sensor 2: Concentration % / PPM 0 - 6553.5