Abbreviations used
e
Set point deviation
p
Signal pressure
out
ps
Supply pressure
x
Valve position
x
Valve position when the valve is tightly
0
shut
w
Set point, reference variable
ATC Air to close
ATO Air to open
BI
Binary input
BSZ
Operating hours counter
FST
Full stroke test
INIT Initialization
NE
NAMUR Recommendation
NP
Zero point
PST
Partial stroke test