Table C-1. Read Coils For 42I - Thermo Scientific 42i Instruction Manual

MODBUS Protocol
MODBUS Parameters Supported
MODBUS Parameters
Supported
C-8 Model 42i Instruction Manual
Exception code
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
Table C–1 through Table C–3
the Model 51 i .
IMPORTANT NOTE The addresses in the following tables are Protocol
Data Unit (PDU) addresses. Verify the coil number on your MODBUS
master to ensure that it matches the coil number on the instrument.
Note Coil status 1 indicates active state.
Table C–1. Read Coils for 42 i
Coil Number Status
0 NOT USED
1 AUTORANGE (NOx)
2 LOCAL/REMOTE
1 Byte 01=Illegal Function, 02=Illegal Address,
03=Illegal Data, 04=Slave Device Failure
(Hex)
05
00
05
FF
00
(Hex)
05
00
05
FF
00
lists the MODBUS addresses supported for
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Thermo Fisher Scientific