Connecting Elements; Address Assignment; Addressing; Basic Rules For Addressing - Festo CPX-E-PN Translation Of The Original Instructions

Function
2.1.9

Connecting Elements

Connection [XF1], [XF2]
1) Housing
Tab. 5 Connection [XF1], [XF2]
Port [XD]
1)
1) The ports XD.0 and XD.1 and also XD.2 and XD.3, respectively, are interconnected in the terminal strip.
Tab. 6 Port [XD]
2.2

Address Assignment

The system CPX-E is composed of a different number of inputs and outputs, depending on the number
and type of modules CPX-E used and the parameterisation of the bus module. The inputs and outputs
are assigned automatically within the system CPX-E. The address assignment (number of allocated
inputs and outputs) on the system CPX-E must be determined prior to commissioning.
• A maximum of 10 I/O modules + bus module is permitted in one system CPX-E.
• The address space of a system CPX-E is limited. The bus module provides the system CPX-E with a
maximum address space of 64 bytes for inputs and 64 bytes for outputs.
• Activated diagnostic functions as well as status bits or the I/O diagnostic interface reduce the size
of the available address space.
2.3

Addressing

2.3.1

Basic Rules for Addressing

– The address assignment of the inputs does not depend on the address assignment of the outputs.
Festo — CPX-E-PN — 2020-01a
Signal
1 TD+ Transmitted data +
2 TD– Transmitted data
3 RD+ Received data +
–
4 n.c.
–
5 n.c.
6 RD– Received data –
–
7 n.c.
–
8 n.c.
Shield Functional earth
1)
Signal
0 +24 V DC operating voltage supply U
1
2 0 V DC operating voltage supply U
3
–
EL/SEN
EL/SEN
9