Technical data

BACnet/IP Controller 750-830 • 75
Data Exchange
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
3.1.6.5.2 Juxtaposition of MODBUS/TCP and IEC 61131-3 Addresses
3.1.6.5.2.1 Word Access
Tab. 3-15: Word access
MODBUS Addresses Method
decimal hexadecimal
IEC 61131 Addresses Description
0...
255
0x0000 –
0x00FF
%IW0...
%IW255
phys. inputs (1)
256...
511
0x0100 –
0x01FF
%QW256...
%QW511
PFC-OUT variables
512 ...
767
0x0200 –
0x02FF
%QW0...
%QW255
phys. outputs (1)
768 ...
1023
0x0300 –
0x03FF
%IW256...
%IW511
PFC-IN variables
illegal address 0x0400 –
0x0FFF
not supported
4096...
8191
0x1000 –
0x1FFF
not supported Configuration tab
8192 ...
12287
0x2000 -
0x2FFF
not supported Firmware register
12288...
13385
0x3000 -
0x3FFF
%MW0...
%MW4095
Flag area (Default: 8 kByte,
size variable)
24576 ...
25340
0x6000-
0x62FB
%IW512...
%IW1275
phys. inputs (2)
FC3
- Read Multiple Register
FC4
– Read Holding Register
28672 ...
29436
0x7000-
0x72FB
%QW512...
%QW1275
phys. outputs (2)
0...
255
0x0000 –
0x00FF
%QW0...
%QW255
phys. outputs (1)
256...
511
0x0100 –
0x01FF
%IW256...
%IW511
PFC-IN variables
512...
767
0x0200 –
0x02FF
%QW0...
%QW255
phys. outputs (1)
768 ...
1023
0x0300 –
0x03FF
%IW256...
%IW511
PFC-IN variables
illegal address 0x0400 –
0x0FFF
not supported
4096...
8191
0x1000 –
0x1FFF
not supported Configuration tab
illegal address 0x2000 -
0x2FFF
not supported Firmware register
12288...
16383
0x3000 -
0x3FFF
%MW0...
%MW4095
Flag area (Default: 8 kByte,
size variable)
24576 ...
25339
0x6000-
0x62FB
%QW512...
%QW1275
phys. outputs (2)
FC16
– Write Multiple Register
28672 ...
29435
0x7000-
0x72F
%QW512...
%QW1275
phys. outputs (2)