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Festo Контроллер позиционирования CPX-CMAX User Manual

Page 348

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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:

ć

PNU 1193: Table of units

ć

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 resolĆ
ution is 0.001 (=10

−3

)

} So a value of 2,550 corresponds to 2.550 m/s

2

.