Festo CPX DE Series Manual page 73

2. Digital CPX input modules
CPX−M−8−M12x2−5POL
Festo P.BE−CPX−EA−EN en 0804g
With this sub−base the sensor supplies are available in pairs
for the inputs Ix/Ix+1, Ix+2/Ix+3, .... The diagnostic messages
are displayed channel−by−channel for the inputs Ix, Ix+1,
Ix+2, ...
Recommendation for the 16−input module:
Use the Festo DUO cable in order to connect two sensors with
one plug at low cost.
The metal thread of this sub−base is connected internally
with pin 5 (functional earth FE).
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