2. Commissioning
2-18
Festo P.BE-CPX-PNIO-E N en 1407c English
2.3.2 Address assignment and addressing after expansion or conversion
A special feature of the CPX terminal is its flexibility. If the
demandsplacedonthemachineorsystemchange,the
equipment fitted on the CPX terminal can also be revised.
Caution
If the CPX termi nal is extended or co nverted at a later
stage, the input/output addresses may be shifted. This
applies in the following cases:
– Additional modules are inserted betw een existi ng mo d-
ules.
– Existing modules are removed or replaced by other mod-
ules which have fewer or more input/output addresses.
– Interli nking blo cks (CPA) or pneumatic manifold blocks
(Midi/Maxi) for monostable valves are replaced by inter-
linking blocks/manifold blocks for bistable valves – or
vice versa (see Pneumatics description).
– Additional interlinking blocks (CPA) or manifold blocks
(Midi/Maxi) are inserted between existing ones.
– The diagnostics mode (status bits or the I/O diagnostics
interface) is activ ated/deactivated.
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