Table C-1. Read Coils For 42I Trace Level; Modbus Parameters Supported - Thermo Scientific 42i Instruction Manual

MODBUS Protocol

MODBUS Parameters Supported

MODBUS Parameters
Supported
C-8 Model 42i Trace Level Instruction Manual
Here is an example of a request to write Coil 5 ON:
Request
Field Name
Function
Output Address Hi
Output Address Lo
Output Value Hi
Output Value Lo
Response
Field Name
Function
Output Address Hi
Output Address Lo
Output Value Hi
Output Value Lo
The following Table C–1
parameters supported for the Model 42i Trace Level.
Table C–1. Read Coils for 42i Trace Level
Coil Number Status
1 AUTORANGE (NOx)
2 LOCAL/REMOTE
3 SERVICE
4 UNITS
5 ZERO MODE
6 SPAN MODE
7 NO MODE
8 NOx MODE
9 NOT USED
10 PRE MODE
11 GEN ALARM
12 NO CONC MAX ALARM
(Hex)
05
00
05
FF
00
(Hex)
05
00
05
FF
00
through Table C–3 lists the MODBUS
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