Festo CPX Series Electronic Manual page 67

3. Commissioning
Festo P.BE−CPX−CP−EN en 0405NH
Limitation in recognising the string assignment
Some specific modifications to the string assignment are not
capable of being recognised during operation:
CP modules or entire strings which are connected to the
previously unassigned string 2 instead of string 1 or vice
versa. This also applies to strings 3 and 4, respectively.
However, these modules will retain their previous addresses
until the next time the power supply is switched off and back
on.
Please note
Modifications to the string assignment will be recognised
reliably after the power has been switched on.
Recommendation:
If possible, switch the power supply off and back on
·
after performing conversion work on the CP strings, pro
vided that your system permits this.
Please note
After saving the string assignment, check the address
assignments of your CP system before starting user
programs.
You will thereby avoid:
addressing faults with unintentionally incorrectly fitted
CP modules.
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