Omron SYSMAC FH Series User Manual page 313

The EXE signal is turned
ON at the same time.
Data Output
Request
(DSA) signal
Result
Completion
(GATE) signal
Output data 0 to 7
(DATA0 to DATA7)
*1 A timeout error will occur if any of the following states continues for longer than the timeout time that is set in the EtherNet/IP settings.
• If the DSA signal is not turned ON after a certain time elapses from when the Output Unit was executed. (Turn ON the DSA
signal at the same time as the measurement trigger command.)
• If the DSA signal is not turned OFF after a certain time elapses from when the GATE signal turns ON.
(1) The PLC (user) turns ON the Command Request (EXE) signal and the Data Output Request (DSA)
signal at the same time. The output data for the first Fieldbus Data Output Unit can be surely re-
ceived.
(2) The Sensor Controller performs the Fieldbus Data Output Unit in the measurement flow. Since the
Data Output Request (DSA) signal is ON after the data is written, the Data Output Completion
(GATE) signal becomes ON.
(3) The PLC (user) reads the data when the Result Completion (GATE) signal turns ON and it turns
OFF the Result Set Request (DSA) signal.
(4) The Sensor Controller automatically turns OFF the Result Completion (GATE) signal when it detects
that the Result Set Request (DSA) signal has turned OFF.
(5) If there is more than one Fieldbus Data Output Unit in the measurement flow, the PLC (user) turns
ON the Data Output Request (DSA) signal when the Data Output Completion (GATE) signal turns
OFF, and then it waits for execution of the next Fieldbus Data Output Unit.
(6) When the next Fieldbus Data Output Unit is executed, the GATE signal turns ON and the data is
output. Receive the second output data and then repeat steps 3 to 5, above.
Repeat steps 3 to 5 for any other data outputs.
FH/FHV Series Vision System User's manual for Communication Settings (Z342-E1)
2 Methods for Connecting and Communicating with External Devices
Fieldbus Data Output Fieldbus Data Output
Unit execution Unit execution
Wait for the first Wait for the second
output data. output data.
(*1) (*1)
ON
OFF
ON
OFF
ON
First data output
OFF
(1) (2) (3)(4)(5)
The PLC turns ON the Result Set Request (DSA)
signal at the same time as the STEP or
Command Request (EXE) signal and waits for
the first output data.
The PLC reads the data when the Result
Completion (GATE) signal turns ON and it turns
OFF the Result Set Request (DSA) signal.
The PLC turns ON the Result Set Request again
when the Result Completion (GATE) signal turns
OFF and waits for the second data output.
The Sensor Controller automatically turns OFF
the Result Completion (GATE) signal when it
detects that the Result Set Request (DSA)
signal has turned OFF.
Second data output
(6)
2
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