ABB Endura AZ40, Operating Instructions Manual

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10 COM/AZ40/MOD–EN Rev. A | Endura AZ40 | Oxygen and carbon monoxide equivalent (COe) analyzer
Appendix A – MODBUS tables
A.1 Digital inputs
A.1.1 Sensor reading diagnostics
A.1.2 Transmitter function diagnostics
A.1.3 Transmitter and sensor diagnostic failure alarms
A.1.4 Transmitter and sensor diagnostic function alarms
A.1.5 Transmitter and sensor diagnostic
out of specification alarms
A.1.6 Transmitter and sensor diagnostic maintenance alarms
MODBUS coil Description
0 Oxygen concentration value status
1 COe concentration value status
2 Inlet temperature value status
3 Outlet temperature value status
4 Outlet / Inlet temperature value status
5 Efficiency value status
MODBUS coil Description
6 Transmitter failure diagnostic
7 Transmitter out of specification diagnostic
8 Transmitter maintenance diagnostic
9 Transmitter function check diagnostic
10 Sensor failure diagnostic
11 Sensor out of specification diagnostic
12 Sensor maintenance diagnostic
13 Sensor function check diagnostic
14 Active failure alarm
15 Calibration in progress
16 Blowback in progress
17 Zero gas valve check
18 Span gas valve check
19 Test gas valve check mode
20 Sample flow rate test mode
MODBUS
coil
Description Diagnostic
alarm no.
21 ADC Failed 0
22 Sensor electronics cold junction failed 1
23 Oxygen heater failed 2
24 Flange block thermocouple failed 3
25 COe block thermocouple failed 4
26 Inlet thermocouple failed 5
27 Outlet thermocouple failed 6
28 Sensor non-volatile memory failed 7
29 Processor board non-volatile memory failed 8
30 Main board non-volatile memory failed 9
31 Reserved 10
32 Reserved 11
33 Comms board non-volatile memory failed 12
34 S/W key 1 non-volatile memory failed 13
35 Reserved 14
36 Reserved 15
37 Internal communication failure between
transmitter and sensor
16
38 Over temperature trip 17
MODBUS
coil
Description Diagnostic
alarm no.
39 Flange, COe and oxygen heaters warming up 18
40 Flange, COe and oxygen heaters stabilizing 19
41 Calibrating 20
42 Blowback in progress 21
43 Sample flow rate test in progress 22
44 Manual valve test in progress 23
45 Remote zero gas test in progress 24
46 Remote span gas test in progress 25
47 Recovery stage after calibration / blowback /
manual valve test / flow rate test
26
48 In hold mode 27
49 In simulation mode 28
MODBUS
coil
Description Diagnostic
alarm no.
50 Last sensor calibration failed 29
51 Process value out of range 30
52 Temperature value out of range 31
53 Flange block temperature is high 32
54 Flange block temperature is low 33
55 COe block temperature is high 34
56 COe block temperature is low 35
57 Oxygen heater current is high 36
58 Oxygen heater current is low 37
MODBUS
coil
Description Diagnostic
alarm no.
59 Transmitter internal ambient temperature is high 38
60 Transmitter internal ambient temperature is low 39
61 Sensor CJC temperature is high 40
62 Sensor CJC temperature is low 41
63 Sensor ECJC temperature is high 42
64 Sensor ECJC temperature is low 43
65 Sensor power is turned off via SW1 44
66 Sensor mains selection is in the wrong position 45