Shihlin electric SDP Series, Manual

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13.2 Delta absolute position detection system
This section mainly introduces the use of Delta PLC with SDP servo to read absolute position
by DIO communication.
13.2.1
Signal description
When transmitting absolute position data, the signal of CN1 terminal will be changed.
Signal Code CN1 Pin Function I/O
ABS
communication
enabled
ABSE User-defined
When ABSE is on, the ABS mode is
activated, it will enable ABSQ, ABSC,
ABSR, ABSD.
DI-x
ABS signal
request
ABSQ 17
Handshake communication check pin
during I/O transmission, ABSQ OFF
means the controller has issued the
requested command; ABSQ ON means
the controller has processed the ABSD
data.
DI-4
(Fixed)
ABS signal
ready
ABSR 43
ABSR OFF means that ABSQ command
can be received; ABSR ON means that the
data is ready and the ABSD data has been
updated.
DO-3
(Fixed)
ABS data
content
ABSD 44
The output pin of ABS data, the data is
guaranteed to be correct when ABSR is
on. DO-4
(Fixed)
ABS
communication
error
ABSW User-defined
The related alarm of the absolute encoder
is indicated by this DO output.
DO-x
Origin setting ABSC User-defined
When ABSC is turned on, the pulse
number in the absolute encoder will be
cleared to zero. This input is valid only
when ABSE is turned on.
DI-x