Pepperl+Fuchs AS-I 3.0, Руководство пользователя

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AS-i 3.0 Command Interface
Commands of the Command Interface
4.6.11 Read parameter (READ_PI: Read_Parameter)
This call returns the current parameter value (actual parameter) of an AS-i slave
sent by the AS-i Master. This value must not be confused with the parameter
echo that is supplied by the AS-i slave as a response to the write_p job.
This command can not be used for a directly reading of an AS-i parameter out of
an AS-i slave.
Request
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 03
16
2 T – circuit
3 – B slave address
Tab. 4-156.
Response
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 03
16
2 T result
3 – PI
Tab. 4-157.
Meaning of bit B:
B = 0 Single AS-i slave or A-slave
B = 1 B-slave