Ametek Thermox WDG-1200 Insitu, User Manual

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4-22 | Thermox WDG-1200/1210 Insitu Probes
register numbers
This manual uses Register Numbers as defined in the Modbus specifications.
The first register number is 1. Modbus packets contain Register offsets which
are one less than register Numbers and start at offset 0.
data types
Integer variable Single register.
registers numbers for Instrument readings (integer value)
address Variable scaling
23 O
2
Reading 1000
27 Cell Temperature (
o
C) 10
command register
address Variable scaling
30 Status and Calibration Start 1
To start the calibration sequence, write the value 1 to register 30.
Maintenance status register
address Variable scaling
19 Maintenance State 1
The value of Register 19 is 1 when the Maintenance Relay is on; otherwise it is
0.