Festo CPX-FB38 - Address Assignment after Extension or Conversion

2. Commissioning
2−19
Festo P.BE−CPX−FB38−EN en 0804NH
2.3.2 Address assignment after extension or conversion
A speciality of the CPX terminal is its flexibility. If the demands
placed on the machine change, the equipment fitted on the
CPX terminal can also be modified.
Caution
If the CPX terminal is extended or converted at a later
stage, the input/output addresses may be shifted.
This applies in the following cases:
if additional modules are inserted between existing
modules
if existing modules are removed or replaced by other
modules which have more or fewer input/output
addresses
if manifold sub−bases (CPA) or
pneumatic sub−bases
(Midi/Maxi) for single−solenoid valves are replaced by
manifold bases for double−solenoid valves or vice versa
(see pneumatics manual)
if additional manifold sub−bases (CPA) or sub−bases
(Midi/Maxi) are inserted between existing sub−bases
 the diagnostic mode (status bits or the I/O diagnostic
interface) is activated/deactivated.
Example terminal 3
modified
The next diagram shows with terminal
3 as an example
(Fig.2/4) the effects of modifications to the address
assignment (compare with Fig.2/3).
The following has been changed:
 The status bits have been deactivated.
In the case of module no. 1 an 8−input module has been
replaced by a 16−input module.
 The pneumatic interface has been set to 16 outputs
(16O)
in order to reserve addresses for an extension to
the pneumatics.