Register Services; Table 45: Reading Analog Input Terminals Using Fc3, Fc4, Fc23; Table 46: Writing Of Analog Output Terminals Using Fc6, Fc16, Fc23 - WAGO -I/O-IPC-C6 Manual

88 MODBUS/TCP
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
0x0000 – 0x00FF
(0 – 255)
0x100 – 0x1FF
(256 – 511)
0x1000 – 0x2FFF
(4096 – 12287)
0x3000 – 0x3FFF
(12288 – 16384)
or can be set to a
maximum of
0xFFFF (65534)

Table 46: Writing of Analog Output Terminals Using FC6, FC16, FC23

MODBUS Address
0x0000 – 0x00FF
(0 – 255)
0x100 – 0x1FF
(256 – 511)
0x1000 – 0x2FFF
(4096 – 12287)
0x3000 – 0x3FFF
(12288 – 16384)
or can be set to a
maximum of
0xFFFF (65534)
Addresses in CoDeSys
%IW0 ... %IW255
%QW256 ... %QW511
See MODBUS
configuration register
%MW0 ... %MW4095
%MW0 ... %MW53247
Addresses in CoDeSys
%QW0 ... %QW255
%IW256 ... %IW511
See MODBUS
configuration register
%MW0 ... %MW4095
%MW0 ... %MW53247
WAGO-I/O-SYSTEM 750
758-874/000-110 WAGO-I/O-IPC-C6
Description
Reading analog or digital input values.
Physical address space of 256 words for
the input data.
Read the PFC variables
MODBUS Configuration Register
Retain memory (8 kB)
Non-volatile PLC variables
Retain memory (24 kB)
Non-volatile PLC variables
Description
Writing analog or digital output values.
Physical address space of 256 words for
the output data.
Write the PFC variables
MODBUS Configuration Register
Retain memory (8 kB)
Non-volatile PLC variables
Retain memory (24 kB)
Non-volatile PLC variables
Manual
Version 2.3.0