A54 User Guide
Modbus parameters
NOTICE
Only read-only holding registers are supported in this implementation.
The Modbus slave ID is 1.
Register Modbus
number
Parameter Function Datatype DataRange
Reserved
0 Not supported
1-10 Reserved
Info
11-20 40011 Model number ASCII string
21-30 40021 Serial number ASCII string
31-40 40031 SW revision ASCII string
41-50 40041 System ID ASCII string
51 40051
Manufacturing date
high byte =
month
low byte =
day
32-bit binary value
52 40052 Year
System status
53 40053 System status see <Status>
table
16-bit binary map see <Status>
table
54 40054 FGS status Internal error signed 16-bit binary number ABB service
Dissolved gas and moisture
55 40055 Moisture status 16-bit binary map see <Gas
status> table
56 40056 Moisture (aw) scaled by
1000
signed 16-bit binary number
57 40057 Moisture (ppm) signed 16-bit binary number
58 40058 Moisture RoC (ppm/day) signed 16-bit binary number
59 40059 RESERVED–Moisture RoC
(ppm/week)
return 0 signed 16-bit binary number
60 40060 RESERVED–Moisture RoC
(ppm/month)
return 0 signed 16-bit binary number
61 40061 Hydrogen status 16-bit binary map see <Gas
status> table
62 40062 Hydrogen (ppm) signed 16-bit binary number
63 40063 Hydrogen RoC (ppm/day) signed 16-bit binary number
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