Advantech PCI-1202, User Manual

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PCI-1202 User Manual 34
PCS (Position Change)
This function is conserved for the further application, not supported by
the current dynamic link library (DLL) driver now.
CLR (Clear Position Command Counter)
This function is conserved for the further application, not supported by
the current dynamic link library (DLL) driver now.
PEL & MEL (Plus End Limit / Minus End Limit)
There are two end-limit signals called PEL and MEL. The default setting
is Normal-Close type signals from external sensors (Can be set by SW2).
PEL indicates the limit of motion in the plus direction and MEL indicates
the limit of motion in the minus direction. The relative signal names, pin
number are shown in the following table.
ORG (Origin)
The origin signal is necessary when the position feedback is of the incre-
mental type or if no feedback encoders are used. The origin signals are
used to indicate the origin of the system. Please refer to
table 3.6 for
detailed information.
Table 3.5: PEL and MEL Pins
Label Description
GND External Ground
PEL Plus End Limit
MEL Minus End Limit
Table 3.6: ORG Pins
Label Description
GND External Ground
ORG ORG signal