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Model 5100-02-IT Combustible Gas Sensor Module
Page: 34
7.8 APPENDIX H: MODBUS MEMORY MAP
Read Register Table
Register Description Comments
40001 Concentration Gas Concentration multiplied by 100
40002 Temperature Temperature in degrees Celsius scalled by a factor of 100
40003 High Alarm Relay Boolean indicating the High Alarm Status, 0 No Alarm, 1 High Alarm
40004 Low Alarm Relay Boolean indicating the Low Alarm Status, 0 No Alarm, 1 Low Alarm
40005 Low Alarm Value Low alarm set point, used for activating Alarms
40006 High Alarm Value High alarm set point, used for activating High Alarms
40007 Reserved
40008 Reserved
40009 Reserved
40010 Reserved
40011 Trouble Bits 0 for no trouble
40012 Trouble 1 for any trouble, 0 for no trouble
40013 High Alarm Immediate Like 40003. but never latched
40014 Low Alarm Immediate Like 40004, but never latched
40015 Random ID Randomly generated permanent ID of sensor
40016 Restart Count
40017 Run time – high In minutes
40018 Run time – low In minutes
40019 Max. gas value *scale ((see 40024)
40020 Model 51002
40021 Range *scale (see 40024)
40022 Units 1 is %LEL
40023 Temperature Units 0 is C, 1 is F
40024 Gas Scale Value like 1 or 100
40025 Temperature Scale Value like 1 or 100