B. Basic controlling principles
B−6
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
The 2 systems of units and the 2 movement types result in
four tables with units and resolution for the 12 variables.
Table no.
System of
measurement units
Movement (drive)
1 è Tab.B/3 International / SI Translatory
2 è Tab.B/4 Imperial Translatory
3 è Tab.B/5 International / SI Rotatory
4 è Tab.B/6 Imperial Rotatory
Tab.B/2: Possible system of units tables
The table used in the CMAX is stored in PNU 1192:06. The
tables each contain an index for the unit and the scaling:
PNU 1193: Table of units
PNU 1194: Table of resolution
The index within the PNU corresponds to the index of the
physical variable
Example of acceleration
PNU
1193:07 contains the value 60, i.e. metre per second
squared". PNU 1194:07 contains the value −3, so the resol
ution is 0.001 (=10
−3
)
} So a value of 2,550 corresponds to 2.550 m/s
2
.