Festo CPX Series Electronic Manual page 120

B. CPX−CP interface with Interbus field bus node
I/O mapping
I data O data
Byte 0 Byte 0
Byte 1
Byte 1
Byte 2
Byte 2
Byte 3 Byte 3
Byte 4 Byte 4
Byte 5 Byte 5
Byte 6
used
reserved
Fig. B/1: Address assignment of a CP system with Interbus field bus nodes, example
B−4
String Module 0
16 O
L1
Module 0
[L1/M0]
O byte 0
O byte 1
16 O
L2
Module 4
[L2/M0]
O byte 2
O byte 3
16 I
L3
Module 8
[L3/M0]
I byte 2
I byte 3
16 O
L4
Module 12
[L4/M0]
O byte 4
O byte 5
Please note
General addressing examples for the field bus protocol you
are using can be found in the relevant field bus node
manual.
The following examples show the address assignment on the
Interbus of a CPX terminal with the CPX−CP interface, each
with the input address: IB20, output address OB20.
Module 1 Module 2
(Module 1) (Module 2)
16 I
(Module 6)
Module 5
[L2/M1]
I byte 0
I byte 1
(Module 9) (Module 10)
16 I 8 I
Module 13 Module 14
[L4/M2]
[L4/M1]
I byte 4 I byte 6
I byte 5
Module 3
(Module 3)
(Module 7)
(Module 11)
(Module 15)
Festo P.BE−CPX−CP−E N en 0405NH