Tracerco Optimus T221, Руководство по эксплуатации

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MD1064 Rev. F 25 of 32
6.2.4 Device Specific HART 7 Commands
6.2.4.1 Command 158 – Read Channel Status
This device specific command allows additional diagnostic data to be obtained from each
channel in the system. This includes GM tube states and communication statistics. The
following tables describe the construction of the command.
Note: Channels are numbered from the bottom up. Also, GM tubes within each channel
are numbered from the bottom up.
Bit Description
0 GM Tube 1 Failed Zero
1 GM Tube 2 Failed Zero
⁞ ⁞
n GM Tube (n + 1) Failed Zero
⁞ ⁞
17 GM Tube 18 Failed Zero
18-23 Reserved
Table 8. Failed zero GM tubes bit field description (Bytes 2-4).
Bit Description
0 GM Tube 1 Failed Oscillating
1 GM Tube 2 Failed Oscillating
⁞ ⁞
n GM Tube (n + 1) Failed Oscillating
⁞ ⁞
17 GM Tube 18 Failed Oscillating
18-23 Reserved
Table 9. Failed oscillating GM tubes bit field description (Bytes 5-7).
Byte Format Description
0 U8 Channel Number (1-4)
Table 10. Command 158 request data bytes.
Byte Format Description
0 U8 Channel Number (1-4)
1 U8 Number of Stages
2 U8 Detector Type (0 = ‘S’ Type, 1 = ‘D’ Type)
3 U8 Number of Failed GM Tubes
4-6 Bits (24) Failed Zero GM Tubes (See Table Above)
7-9 Bits (24) Failed Oscillating GM Tubes (See Table Above)