Baker Hughes Panametrics AquaTrans AT600, Руководство пользователя

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AquaTrans™ AT600 User’s manual 97
Chapter 6. Communication
Command 168 (0xA8): Enter/exit fixed loop current
Enter or exit the fixed mode of loop current.
Table 50: Request data bytes for enter/exit fixed loop current
Table 51: Response data bytes for enter/exit fixed loop current
Table 52: Command-specific response code for enter/exit fixed loop currents
Command 169 (0xA9): Set loop current zero
This command is to trim the zero or lower endpoint value of the loop current to its minimum.
Table 53: Request data bytes for set loop current zero
Byte Format Description
0 Unsigned-8 Fixed current level:
0: Exit fixed loop current;
1: fixed 4 mA;
2: fixed 20mA;
3: fixed percentage of scale
Byte Format Description
0 Unsigned-8 Fixed current level:
0: Exit fixed loop current;
1: fixed 4 mA;
2: fixed 20mA;
3: fixed percentage of scale;
Code Class Description
0 Success No command-specific errors
1 - 4 Undefined
5 Error Too few data bytes received
6 Error Device-specific command error
7 Error In write protect mode
8 - 10 Undefined
11 Error Loop current not active
12 - 15 Undefined
16 Error Access restricted
17 - 31 Undefined
32 Error Busy
33 - 127 Undefined
Byte Format Description
0 - 3 Float Externally measured loop current level, units of
milliamperes