Omron FH series User Manual page 176

Setting item
Retry interval [ms]
Retry interval 2
[ms]
Polling cycle [ms]
174
Communicating with PLC Link
Set value
[Factory default]
Set the time after which a timeout error will occur due to failing in establish-
ing PLC link communications.
The error is caused by making incorrect communication settings or discon-
nection of communication cables, and similar causes.
After a timeout error occurs, communications with the destination device will
be attempted at the interval time that is set as the retry interval.
Reference:
0 to 999999
*1: If handshaking is enabled, a timeout error will also occur if any of the
[10000]
following operations are not performed during the [Retry interval].
• If the DSA signal is not turned ON after a certain time elapses from
when measurements are finished
• If the DSA signal is not turned OFF after a certain time elapses from
when the GATE signal turns ON.
• If the DSA signal is not turned ON after a certain time elapses from
when the GATE signal turns OFF.
The command will be resent after the time that is set for "Retry interval 2" in
cases where PLC link communications fail due to a temporary response
0 to 999999 delay caused by heavy network loads, processing conditions on a PLC, and
[1000] similar causes. Set the time so that the time set for "Retry interval 2" is
shorter than the time set for "Retry interval". Normally the setting should not
be changed.
0 to 999999:
Set the interval at which the FH/FZ5 Sensor Controller checks for the Com-
mand Execute (EXE) signal from an external device, i.e., PLC, turning from
OFF to ON.
−1 to 999999
-1:
[0] If this value is set, polling will not be performed during normal operation.
This setting prevents communications (polling) from affecting the measure-
ment processing time during normal operation.
Commands cannot be executed, but data output and flow control can be per-
formed.
Description
*1
Data Output Control with Handshaking (p.32)
Vision System FH/FZ5 Series User's Manual
for Communications Settings (Z342)