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Command 150: Write MODBUS RTU 16-bit Register (using index)

This command allows the writing to the sensor module 16-bit MODBUS registers as defined in the MODBUS RTU register

map. The index provided is 1 byte and is referenced from address 40000.

The unsigned 16-bit data that is written is provided in floating point format.

Request Data Bytes:

Byte Format Description

0 Unsigned-8 Index to select register, with 40000 offset removed

1-4 Float Float Value to be written to Modbus register

Response Data Bytes:

Byte Format Description

0 Unsigned-8 Response Code

1 Unsigned-8 Device Status

2 Unsigned-8 Index of select register with 40000 offset removed

3-6 Float New value of register

SMC 5100-XX-IT Toxic Gas Detector Module 61

US 13 HART

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MSA SMC 5100-IT Series Specifications

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