Festo SPC200 - Page 153

4. Commissioning positioning systems
4−39
Festo P.BE−SPC200−WIN−PISA−CD−EN en 0901d
Description of the parameters under Nominal value input"
(pneumatic axis)
Channel number With the channel number you can assign an analogue channel
to the axis (channels nos. 1 ... 4) or the nominal value specifi
cation via the field bus (channel 5). Select the desired assign
ment from the list. See here also NC
command M14.
Please note
The digital setpoint value specification via fieldbus always
generates an absolute position in mm in the SPC200.
It refers to the project zero point (configured in the ap
plication data of the respective axis).
The transferred setpoint value itself corresponds to a posi
tion value in units of 0.1 m for Profibus
or in units of m
for DeviceNet.
Scaling factor With the scaling factor you can specify the positioning path
which is to be covered by the analogue nominal value specifi
cation (0 ... 10 V) (e.g. factor = 20; possible positioning path
= 200 mm). See here also NC command M10.
Permitted: 0.10 ...
9999.90 [mm/V] or [°/V]
With digital setpoint value specification, the scaling factor has
no effect.
Offset By specifying the offset you can shift the reference point for
the analogue nominal value specification based on the pro
ject zero point. See here also NC command M11.
Permitted: ± 9999.99 [mm] or [°]
With digital setpoint value
specification, the offset has no
effect.
Nominal value mode A distinction is made between 5 modes of the nominal value
specification. With the mode you define the type of position
ing with the analogue nominal value specification. See here
also NC command M13.
Permitted: 0 ... 4