Festo MPA-ASI Series, Manual

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3. Installation
3−30
Festo P.BE−MPA−EN en 0802c
3.5 Address assignment of the valves
3.5.1 MPA−S valve terminal with CPX terminal
Maximum 16 MPA pneumatic modules are permitted on the
MPA−S valve terminal with CPX terminal. The following
number of valve coils is therefore possible (if only valves of
the same size are used):
MPA1:
up to 128 valve solenoid coils
(max. 64 valve locations)
MPA2: up to 64 valve solenoid coils
(maximum 32 valve locations)
Note
Note with the addressing that an MPA2 pneumatic module
has only 4 addresses compared to an MPA1 pneumatic
module.
Assigning the addresses
The assignment of the addresses is module−orientated.
A pneumatic module occupies the following number of
addresses:
MPA1: 8 addresses
MPA2: 4 addresses
Counting begins on the valve terminal from left to right.
Each valve location occupies 2 addresses, irrespective of
the valve plate or blanking plate fitted.
The following assignment applies:
solenoid coil 14 occupies the less significant address
solenoid coil 12 occupies the more significant address.