WAGO-I/O-SYSTEM 750
Appendix 103
750-658 CAN Gateway
Manual
Version 1.2.1, valid from FW/HW-Version 01/01
12.4.1 Control/Status Byte
The control byte has the following structure:
Table 60: Control Byte
Control Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
0 = Read Register
1 = Write Register
Register number
During register communication, the register query response is contained in the
status byte.
Table 61: Status Byte
Status Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
reserved
Register number (Acknowledgement)
The register data is transferred in the subsequent 2 bytes (byte 1 and byte 2) of
the local bus process image.
