I/O Signals - Omron SYSMAC FH Series User Manual

2 Methods for Connecting and Communicating with External Devices
2-1-17

I/O Signals

The following tables list the signals used to control I/O for EtherCAT.
Input Signals
Signal
Command Re-
quest
Result Set Re-
quest
(Used only for
handshaking
output control)
Error Clear
2 - 46
Signal name Function
This is turned on when
Command Ex- the PLC will issue a
ecution command to the Sensor
Controller.
The user (PLC) issues
this signal to the Sensor
Controller to request to
output the results per-
formed in the measure-
ment flow.
When this signal is ON
while an output unit
(Fieldbus data output
unit) in the measure-
ment flow is performed,
the Sensor Controller
Data Output
outputs the data of the
Request Signal
processing item.
When multiple output
units output data with
256 bytes and more,
turn ON the Result Set
Request signal again
after the Result Notifi-
cation signal for the first
data output turns OFF.
For details, refer to
2-1-23 Timing Chart on
page 2 - 61.
This is turned on when
the ERR signal from the
Error Clear
Sensor Controller will
be cleared.
FH/FHV Series Vision System User's manual for Communication Settings (Z342-E1)
ON/OFF timing
OFF to ON
This is turned on when
the user (PLC) will is- The user (PLC)
sue a command (in- switches from ON to
struct the execution) to OFF when the Com-
the Sensor Controller mand Completion sig-
based on the command nal from the Sensor
code and command pa- Controller is turned ON.
rameters.
•
The signal turns ON
when the user (PLC)
requests to output
the data of the meas-
The user (PLC)
*2
urement results.
switches from ON to
•
The Result Set Re-
OFF when the Result
quest signal is turned
Notification signal from
ON at the same time
the Sensor Controller is
when the Trigger
turned ON.
(measurement trig-
ger) signal or the
Command Request
signal switches from
OFF to ON.
The user (PLC) The user (PLC)
switches the signal from switches the signal from
OFF to ON when the ON to OFF when it de-
Error Status signal from tects that the Error Sta-
the Sensor Controller is tus signal is turned
turned OFF. OFF.
ON to OFF
*1