MSA 5100-03-IT, Operating Manual

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Command 147: Trim 4mA Loop
This command allows initiation of the 4mA trimming procedure.
Request Data Bytes: None
Response Data Bytes:
Byte Format Description
0 Unsigned-8 Response Code
1 Unsigned-8 Device Status
Command 148: Trim 20mA Loop
This command allows initiation of the 20mA trimming procedure.
Request Data Bytes: None
Response Data Bytes:
Byte Format Description
0 Unsigned-8 Response Code
1 Unsigned-8 Device Status
Command 149: Read Timer (using index)
Used to read the one of the following internal diagnostic timers, using an index as indicated in table below.
The value of the selected timer is returned as a 32-bit unsigned integer.
Index Parameter Read/Write
17 Run Timer Read
30 Alarm Timer Read
32 Warning Timer Read
34 Trouble Timer Read
36 Maximum Gas Timer Read
38 Minimum Gas Timer Read
Request Data Bytes:
Byte Format Description
0 Unsigned-8 Index to select appropriate timer as per table above
Response Data Bytes:
Byte Format Description
0 Unsigned-8 Response Code
1 Unsigned-8 Device Status
2 Unsigned-8 Index of selected timer
3-6 Unsigned-32 Value of selected timer
60 SMC 5100-XX-IT Toxic Gas Detector Module
13 HART US