FCU 500, FCU 505 · Edition 02.17
62
Fieldbus communication via Ethernet
9 .2 .3 Modules/Registers for process data
All modules (Profinet) and registers (Modbus TCP) re-
quired for data exchange between the PLC and the pro-
tective system controls FCU 500/FCU 505 are shown
in the following table.
Module (Profinet)
Register (Modbus TCP)
Profinet
slot
Modbus
address
Address
Operation
Outputs
1
0
n
w
Inputs
6
1)
n...n+1
r
Status signal
2
9
n
r
Fault and warning signals
3
12
n...n+1
r
Remaining times
4
15
n...n+1
r
TC remaining times
2)
5
18
n...n+1
r
PLC output information
6
21
n
r
FCU input terminal
information
7
24
n...n+1
r
25
n+2
r
FCU output terminal
information
8
27
n...n+1
r
STM temperature
9
30
n...n+1
r
STL temperature
31
n+2...n+3
r
STM/STL status
32
n+4
r
1)
Modbus TCP: see table Modbus TCP – register structure
2)
Only for FCU..C1. Slot 5/address 18 is not transferred with other
device versions.
Modbus TCP – register structure
Example of “Inputs” register:
Modbus address
6
Format
Word
PLC address byte
Byte n
.7 .0
Byte n+1
.7 .0
▼
