Data Output - Omron FH series User Manual

Data Output

The ON/OFF timing of signals related to data output after completion of measurement is indicated in the timing
chart below.
No Handshaking
Result
Response
Notification
Area
signal
Data Output
Output data
Area
*1, *2: Data is output at the set output period*
the Result Notification signal is turned ON and the data is held for the data output time.
(1) The Sensor Controller (slave) outputs data when the Fieldbus Data Output Unit starts execution.
(2) Data is output every time the Fieldbus Data Output Unit or another Fieldbus Data Output Unit is
executed. The previously output data is overwritten.
IMPORTANT
Set the output period in the communications settings to a time that is longer than the output time.
Using Handshaking
The Result Notification signal is switched from OFF to ON when the Controller (master) switches the Result
Set Request signal from OFF to ON. At this point, the Sensor Controller (master) outputs the data(*1) that is
ready to be output.
Switch the Result Set Request signal from ON back to OFF after the Controller (master) has checked that the
Result Notification signal is ON and has read the data.
When there are data to be sent from multiple Fieldbus Data Output units, turn ON the Result Set Request
signal again to output the next output data when the Sensor Controller (slave) turns the Result Notification
signal from ON to OFF.
*1: This is the data that is prepared for output when the Output Unit is executed in the measurement flow.
88
EtherCAT Connections (FH-1000 series/FH-3000 series only)
Fieldbus Data
Fieldbus Data
Output Unit
Output Unit
execution
execution
*1
*2
First data output Second data output
ON
OFF
ON
OFF
(1)
(2)
1 and for the set output time.*
The data is overwritten
by the second data output.
2 After data is output,
Vision System FH/FZ5 Series User's Manual
for Communications Settings (Z342)