Technical data

I/O Modules • 271
Process Data Architecture for MODBUS/TCP
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
MP Bus Master Module
750-643
The MP Bus Master Module has a total of 8 bytes of user data in both the In-
put and Output Process Image (6 bytes of module data and 2 bytes of con-
trol/status). The following table illustrates the Input and Output Process Im-
age, which have 4 words mapped into each image. Word alignment is applied.
Input and Output Process Image
Byte Destination
Offset
High Byte Low Byte
Remark
0 C1/S1 C0/S0
extended Con-
trol/Status byte
Control/Status
byte
1 D1 D0
2 D3 D2
3 D5 D4
Data bytes