MSA SMC 5100-IT Series User Manual

Command 139: Apply SPAN Gas
This command will signal the module to accept the present sensor output to as the SPAN gas condition.
Request Data Bytes:None
Response Data Bytes:
Byte Format Description
0 Unsigned-8 Response Code
1 Unsigned-8 Device Status
Command 141: Force Gas Value
Request Data Bytes:
Byte Format Description
0 Unsigned-8 Sets the Force Gas Value, range 0 to 100
Response Data Bytes:
Byte Format Description
0 Unsigned-8 Response Code
1 Unsigned-8 Device Status
Command 142: Reset Force Gas Value
This command will signal the module to set the Force Gas Value to 0.
Request Data Bytes:None
Command Specific Response Data Bytes: None
Command 143: Read MODBUS RTU Register
This command allows the reading of sensor module data as defined in the MODBUS RTU register map. The index provided
is 1 byte and is referenced from base address 40000. The unsigned 16-bit data is returned in floating point format.
Request Data Bytes:
Byte Format Description
0-1 Unsigned-16 Index to select register with 40001 offset removed
Response Data Bytes:
Byte Format Description
0 Unsigned-8 Response Code
1 Unsigned-8 Device Status
2 Unsigned-8 Index to select register with 40000 offset removed
3-6 Float Value of Modbus register
58 SMC 5100-XX-IT Toxic Gas Detector Module
13 HART US

MSA SMC 5100-IT Series Specifications

General

Brand	MSA
Model	SMC 5100-IT Series
Category	Gas Detectors
Language	English