Honeywell XNX, Technical Manual

Page: 189 / 200

XNX Universal Transmitter
Appendix B - Modbus Protocol 187
Modbus Holding
Register Address
Datatype Variable Name Description
40007
uint8 iMonitoringState
This has the following meanings:
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21-
255
reserved
normal monitoring
in warm-up
long-term inhibit
alarm simulation
fault simulation
Loop current stimulated
in warning MFlt
in Instrument Flt
in beam block
in bump test
short-term inhibit
performing zero calibration
performing span calibration
in pre-zero calibration
in pre-span calibration
in post-zero calibration, successful
in post-span calibration, successful
in post-zero calibration, failed
in post-span calibration, failed
in align Excel mode
for future expansion
40008 int16 iHeartBeat
This Heartbeat is provided to facilitate detection of communications problems in programming environments where the transport-
layer communication error information is unavailable. This increments approximately every 5 seconds.
It is the responsibility of the system integrator to notify plant personnel if a Modbus master fails to communicate with the XNX. This
register can facilitate this notification.
40009 to 40010 float32 fSensorLifeDays This indicates the time remaining before the ECC sensor must be calibrated or replaced.