RKI Instruments M2 for 12 VDC - Manual (Page 39)

M2 Transmitter Operator’s Manual, 12 VDC Operation 34
Register 3
Register 3 is the supply voltage (0.1 volt per count).
Registers 4 - 11
The 16 bytes in these registers contain the same ASCII text information that is displayed
on the M2’s LCD (not NULL terminated).
[11] Gas Type Change
0=Not Changed
1=Changed
[10] Configuration Change
0=Not Changed
1=Changed
[9] Calibration Activity Flag
0=No Calibration Activity
1=Calibration Activity Has Occurred
[8] Fail Status
0 = Fail Not Asserted
1 = Fail Asserted
[7:6] Alarm 2 Status
0 = No Alarm
1 = Unacknowledged Alarm
2 = Acknowledged Alarm
3 = Unused Code
[5:4] Alarm 1 Status
0 = No Alarm
1 = Unacknowledged Alarm
2 = Acknowledged Alarm
3 = Unused Code
[3] Overscale Status
0=Not Overscale
1=Overscale
[2] Fail Relay Status
0 = Not Energized
1 = Energized
[1] Alarm 2 Relay Status
0 = Not Energized
1 = Energized
[0] Alarm 1 Relay Status
0 = Not Energized
1 = Energized
Table 11: Register 2, Operating State, Alarms & Relays Bit & Field Assignments (Continued)
Bit(s) Value