Omron FH series User Manual page 91

Fieldbus Data Output
Unit execution
Wait for the first
output data.
The Trigger signal
is turned ON at the
same time.
Result Set ON
Request signal
OFF
Result
ON
Notification
signal
OFF
ON
Output data
OFF
(1)
*: A timeout error will occur if any of the following states continues for longer than the timeout time that is set in the EtherCAT settings.
• If the Result Set Request signal is not turned ON after a certain time elapses from when the Output Unit is executed.
(Turn ON the Result Set Request at the same time as the measurement trigger input or the command input.)
• If the Result Set Request signal is not turned OFF after a certain time elapses from when the Result Notification signal turned ON.
(1) The Controller (master) turns ON the Result Set Request signal.
(2) When the Fieldbus Data Output Unit in the measurement flow is executed, the Sensor Controller
(slave) writes the data then turns the Result Notification signal ON.
(3) After reading the data, the Controller (master) turns the Result Set Request signal OFF.
(4) The Sensor Controller (slave) turns OFF the Result Notification signal.
(5) If there are multiple Field Data Output Units in the measurement flow, the Controller (master) turns the
Result Set Request signal ON, then waits for execution of the next Fieldbus Data Output Unit to be
processed.
(6) When the next Fieldbus Data Output Unit is executed, the Sensor Controller (slave) writes the data,
then turns the Result Notification signal ON.
Repeat steps 3 to 6.
Vision System FH/FZ5 Series User's Manual
for Communications Settings (Z342)
Fieldbus Data Output
Unit execution
Wait for the second
output data.
* *
First data output Second data output
(2) (3) (4) (5) (6)
EtherCAT Connections (FH-1000 series/FH-3000 series only)
The Controller (master) switches the Result Set Request signal from
OFF to ON at the same time that the Trigger signal or Command
Request signal switches from OFF to ON, and waits for the first data
output.
When the Result Notification signal is ON, the Controller (master)
reads the data and switches the Result Set Request signal back to
OFF.
When the Result Notification signal has switched from ON to OFF,
the Controller (master) switches the Result Set Request signal from
OFF back to ON, and waits for the second data output.
The Sensor Controller (slave) checks that the Result Set Request
signal has turned OFF, then automatically turns the Result Notification
signal OFF.
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