WAGO-I/O-SYSTEM 750
MODBUS/TCP
93
758-874/000-131 WAGO-I/O-IPC-C6
Manual
Version 1.0.0
10.2.1
Register Services
With the register services, determine or change the statuses of analog input and
output terminals for the following address ranges:
Table 45: Reading Analog Input Terminals Using FC3, FC4, FC23
MODBUS Address
Addresses in CoDeSys
Description
0x0000 – 0x00FF
(0 – 255)
%IW0 … %IW255
Reading analog or digital input values.
Physical address space of 256 words for
the input data.
0x100 – 0x1FF
(256 – 511)
%QW256 … %QW511
Read the PFC variables
0x1000 – 0x2FFF
(4096 – 12287)
See MODBUS
configuration register
MODBUS Configuration Register
0x3000 – 0x3FFF
(12288 – 16384)
or can be set to a
maximum of
0xFFFF (65534)
%MW0 … %MW4095
%MW0 … %MW53247
Retain memory (8 kB)
Non-volatile PLC variables
Retain memory (24 kB)
Non-volatile PLC variables
Table 46: Writing of Analog Output Terminals Using FC6, FC16, FC23
MODBUS Address
Addresses in CoDeSys
Description
0x0000 – 0x00FF
(0 – 255)
%QW0 … %QW255
Writing analog or digital output values.
Physical address space of 256 words for
the output data.
0x100 – 0x1FF
(256 – 511)
%IW256 … %IW511
Write the PFC variables
0x1000 – 0x2FFF
(4096 – 12287)
See MODBUS
configuration register
MODBUS Configuration Register
0x3000 – 0x3FFF
(12288 – 16384)
or can be set to a
maximum of
0xFFFF (65534)
%MW0 … %MW4095
%MW0 … %MW53247
Retain memory (8 kB)
Non-volatile PLC variables
Retain memory (24 kB)
Non-volatile PLC variables