Address Assignment Of The Cpx Terminal - Festo CPX-FB11 Manual

2. Commissioning

2.1.2 Address assignment of the CPX terminal

2−8
Please note
A CPX terminal with field bus node FB11 makes 8 status
bits available. These 8 status bits must be transmitted
separately via a Strobed I/O" connection.
If necessary, an I/O diagnostic interface can be activated
by a DIL switch. If the interface is active, it will occupy
the first 16 inputs and outputs in the address range.
If you configure the CPX terminal with modular EDS, the
field bus node must be installed as module 0 on the first
place!
Basic rules for addressing
The address assignment of the inputs does not depend on
the address assignment of the outputs.
Counting mode:
with standard EDS: from left to right in ascending
order without gaps, depending on the module type
and independent of the position of the field bus node.
with modular EDS: from left to right, addressing byte
wise: Modules with less than 8 bits occupy 8 bits of
address space but do not use it completely. The field
bus node must be installed as module 0.
The field bus node counts as a module with 0 inputs and
0 outputs if the status bits and the I/O diagnostic inter
face are deactivated.
The I/Os of various module types are assigned separately
from each other.
The following order applies:
Festo P.BE−CPX−FB11−EN en 0503b