Festo CPV GE-ASI-8E8A-Z M8 Series Brief Description page 22

When using addressing devices < Spec. 2.1:
The addressing device scans the available slaves in the
AS−Interface network. However, with valve terminal type
CPV..−GE−ASI−8E8A−Z M8, only the slave of the two coupled
slaves with the lower address will be displayed.
Proceed as follows when setting or modifying the
AS−Interface addresses.
Valve terminal as supplied from the factory
(addresses #1/#2)
1. The addressing device recognizes slave 1 with ad
dress #1. Assign the desired address #n to slave 1.
2. When slave 1 has been addressed, the addressing
device recognizes slave 2 with address #2. Assign a
neighbouring address #m=n±1 to slave 2.
Modifying addresses
If before or during modification to the addresses, the
address of slave 1 is higher than the address of slave 2:
Consider the following limits by uncoupling" slave 1
S
as the first step in the re−addressing and assigning a
higher address to slave 2 (e.g. #31). Otherwise further
modification of the addresses is not always possible.
22 Festo CPV..−GE−ASI−8E8A−Z M8 0306c English