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WAGO-I/O-SYSTEM 750
Function Description 93
750-882 Media Redundancy ETHERNET Controller
Manual
1.5.0
7.3.2.2 IEC-61131-3 Address Areas
Table 33: IEC-61131-3 Address Areas
Address area
MODBUS
Access
PLC
Access
Description
phys. inputs
read
read
Physical inputs
(%IW0...%IW255 und
%IW512...%IW1275)
phys. outputs
read/write read/write Physical outputs
(%QW0...%QW255 und
%QW512...%QW1275)
MODBUS/TCP
PFC-IN variables
read/write read
Volatile PLC input variables
(%IW256...%IW511)
MODBUS/TCP
PFC-OUT variables
read
read/write Volatile PLC output variables
(%QW256...%QW511)
EtherNet/IP
PFC-IN variables
-
read
Volatile PLC input variables
(%IW1276 ... %IW1531)
EtherNet/IP
PFC-OUT variables
-
read/write Volatile PLC output variables
(%QW1276 ... %QW1531)
Configuration register read/write
-
see Section “Fieldbus
Communication” > “Configuration
Registers”
Firmware register
read
-
see Section “Fieldbus
Communication” > “Firmware
Information Registers”
Marker variables
(retain)
read/write read/write Remanent memory
(%MW0...%MW8191)