WAGO -I/O-SYSTEM 750 Series Manual page 35

Selection of channels 3 and 4 (A/B flag = 1):
Byte 1
Byte 2
Byte 3
Byte 4
...
Byte 6
Byte 1
...
Byte 6
The mailbox call is not answered with the current analog values, as the toggle
flag has not been reset.
Resetting the toggle flag:
Byte 1
Byte 2
Byte 3
Byte 4
...
Byte 6
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
The values for channels 3 and 4 appear in the response.
WAGO-I/O-SYSTEM 750
I/O Modules
Request
0x50
0xA0 (Toggle flag = 1, A/B flag = 1)
0x1D (Slave address 29)
0x00
...
0x00
Response
0x00
...
0x00
Request
0x50
0x20 (Toggle flag = 0, A/B flag = 1)
0x1D (Slave address 29)
0x00
...
0x00
Response
0x50
0x00 (Toggle flag = 0, no error)
Analog channel 3 high byte, hex
Analog channel 3 low byte, hex
Analog channel 4 high byte, hex
Analog channel 4 low byte, hex
750-655 [AS-Interface master module]
Mailbox commands
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