Pepperl+Fuchs AS-I 3.0, Руководство пользователя

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AS-i 3.0 Command Interface
Command Interface Examples
5. Command Interface Examples
5.1 Reading 16-bit input values
This example describes the command (RD_7X_IN) for reading of four 16-bit input
channels of an AS-i input slave acc. to 16-bit slave profile.
Prozessing as cyclic DP/V0 data exchange:
Used ID/module in the GSD file: 12-byte management.
Meaning of the bytes:
The call of the command interaface has not been answered with the valid values
since the toggle bit has not been set.
request: RD_7X_IN
byte 1 50
hex
(RD_7X_IN)
byte 2 00
hex
(master 1, single master)
byte 3 1D
hex
(slave address 29)
byte 4 00
hex
… …
byte 12 00
hex
Tab. 5-291.
Response
byte 1 00
hex
(or old values)
byte 2 00
hex
(or old values)
byte 3 00
hex
(or old values)
byte 4 00
hex
(or old values)
… …
byte 12 00
hex
(or old values)
Tab. 5-292.