Overview Of The Iec 61131-3 Address Ranges; Absolute Addresses - WAGO 750 Series Manual

Overview of the IEC 61131-3 address ranges:

Address range
phys. Inputs
phys. Outputs
MODBUS/TCP
PFC IN variables
MODBUS/TCP
PFC OUT variables
Ethernet/IP
PFC IN variables
Ethernet/IP
PFC OUT variables
Configuration register
Firmware register
Flags/RETAIN
variables
Table 3.7: Overview IEC 61131-3 Address ranges

3.1.6.2.3 Absolute Addresses

Accessing individual memory cells (absolute addresses) in accordance with
IEC 61131-3 is made using special character defined in the table below:
e. g. word wise: %QW27 (28. Word), bit wise: %IX1.9 (10. Bit in Word 2)
* The character 'X' for bits can be deleted
Table 3.8: Absolute Addresses
Note
Enter the absolute address character strings without blanks (white spaces)!
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
MODBUS
Access
read
read/write
read/write
read
-
-
read/write
read
read/write
Position Character
1 %
2 I
Q
M
3 X*
B
W
D
4
Fieldbus Controller 750-841
SPS Description
Access
read Physical Inputs
read/write Physical Outputs
read Volatile SPS Input variables (%IW256 ... %IW511)
read/write Volatile SPS Output variables (%QW256 ... %QW511)
read Volatile SPS Input variables (%IW1276 ... %IW1531)
read/write Volatile SPS Output variables (%QW1276 ... %QW1531)
--- see Chapter „Ethernet"
--- see Chapter „Ethernet"
read/write Remanent memory (%MW0 ... %MW12288)
Designation
Starts absolute address
Input
Output
Flag
Single bit
Byte (8 Bits)
Word (16 Bits)
Double word (32 Bits)
Address
Data Exchange
(%IW0 ... %IW255 and
%IW512 ... %IW1275)
(%QW0 ... %QW255 and
%QW512 ... %QW1275)
Comments
Data width
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