W
.
E
.
ST
.
Elektronik GmbH
Page 24 of 45
POS-124-*-PDP-1121
13.02.2013
5.2.11
INPX (Sensor type define)
Command
Parameters
Unit
Group
INPX X
x= SSI|ANA
STD
With this parameter the appropriate sensor type can be activated.
SSI:
The SSI sensor interfaces are active. The SSI sensors have to be adjusted via the SSI com-
mands to the sensors. The relevant sensor data must be available.
ANA:
The analog sensor interfaces (0 ... 10 V or 4 ... 20 mA) are active. The sensors are scaled with
the commands AIN: X
The SSI interface is suitable for digital position sensor. The internally processed accuracy is 1 micron.
CAUTION:
It can only be used SSI sensors of the same type, ie the resolution of the sensor,
the number of bits transmitted and the transmission coding must be the same!
5.2.12
SSI:OFFSET (Sensor offset)
Command
Parameters
Unit
Group
SSI:OFFSET1 X
SSI:OFFSET2 X
x= -1000000… 1000000
µm
INPX = SSI
This command is a sensor offset (zero point of the sensor).
5.2.13
SSI:POL (Direction of the sensor signal)
Command
Parameters
Unit
Group
SSI:POL1 X
SSI:POL2 X
x= +|-
-
INPX = SSI
To reverse the working direction of the sensor, with this command, the polarity can be changed.
Example
: Sensor Length = 200 mm, reverse the direction of work is required.
Set SSI: POL to "-" (internally, the sensor position is subtracted from the stroke ).
