I/O Signals - Omron SYSMAC FH Series User Manual

2 Methods for Connecting and Communicating with External Devices
2-4-12

I/O Signals

The following tables list the signals used to control I/O for EtherNet/IP.
Input Signals
Signal
EXE
DSA
(Used only for
handshaking
output control)
ERCLR
2 - 298
Signal name Function
The user (PLC) turns
Command Re- this signal ON when is-
quest Signal suing a command to the
Sensor Controller.
During handshaking,
the user (PLC) issues
this signal to the Sensor
Controller to request to
output externally the
measured results per-
formed in the measure-
Data Output ment flow.
Request Signal When this signal is ON
while an Output Unit
(Fieldbus Data Output
Unit) in the measure-
ment flow is performed,
the Sensor Controller
outputs the data of the
processing item.
This is turned ON when
the Error (ERR) signal
Error Clear Bit
from the Sensor Con-
troller will be cleared.
FH/FHV Series Vision System User's manual for Communication Settings (Z342-E1)
ON/OFF timing
OFF to ON
The user (PLC) turns
The user (PLC)
this signal ON when is-
switches this signal
suing a command (in-
from ON to OFF when
struct the execution) to
the Sensor Controller
the Sensor Controller
turns the Command
based on the command
Completion (FLG) sig-
code and command pa-
nal ON.
rameters.
•
The user (PLC) turns
this signal ON when
requesting the meas-
urement data to out-
*3
put externally.
•
This DSA signal is
turned ON at the
same time as the
Trigger (STEP) or
Command Request
The user (PLC)
(EXE) signal
switches this signal
switches from OFF to
from ON to OFF when
ON.
the Sensor Controller
When more than one
turns the GATE signal
Output Units is used
ON.
to output more than
eight data, turn ON
this DSA signal again
after the GATE signal
for the first data out-
put turns OFF.
For details, refer
to2-3-18 Timing
Chart on page
2 - 252.
The user (PLC)
This signal is turned
switches the signal from
OFF when the user
OFF to ON when the
(PLC) detected the Er-
Error (ERR) signal from
ror (ERR) signal turned
the Sensor Controller is
OFF.
turned OFF.
ON to OFF
*1
*2