RKI Instruments M2A - Manual (Page 63)

M2A Transmitter Operator’s Manual 58
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
M2A’s OLED (not NULL Terminated).
Register 12
Register 12 is the range (full scale readout).
Register 13
Register 13 is the alarm 1 set point.
The decimal point location is the same as specified in Register 1.
Register 14
Register 14 is the alarm 2 set point.
The decimal point location is the same as specified in Register 1.
Registers 15 - 19
Registers 15 - 19 are the Gas Name ASCII String (NULL Terminated).
Registers 20 - 22
Registers 20 - 22 are the Gas Units String (NULL Terminated).
[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 13: Register 2, Operating State, Alarms & Relays Bit & Field Assignments (Continued)
Bit(s) Value