WAGO-I/O-SYSTEM 750
Appendix 105
750-657 IO-Link Master
Manual
Version 1.0.2, valid from FW/HW-Version 02/01
11.2.3
Example: Read register 08 (WAGO article number)
In this example, you read register 08 from the I/O module.
The internal bus process data width in the example is 8 bytes.
Table 69: Control byte, read register 08
Byte
0
1
2
3
4
5
6
7
Content
Control
byte
D0
D1 invalid invalid invalid invalid invalid
HEX
0x89
DC*
DC*
-
-
-
-
-
* DC = Don’t Care. The data is ignored by the I/O module.
As feedback, the status byte returns:
Table 70: Status byte, read register 08
Byte
0
1
2
3
4
5
6
7
Content
Status
byte
D0
D1 invalid invalid invalid invalid invalid
HEX
0x89
0x91
0x02
-
-
-
-
-
The value 0291
hex
corresponds with 0657
dez.
Accordingly, the WAGO article
number of the I/O module is 0750-0657 (IO-Link master).