Omron V440-F User Manual page 291

Appendices
F-4-2 Leading Edge Trigger Filter
Usage:
Definition:
Serial Cmd:
Default:
Options:
F-4-3 Trailing Edge Trigger Filter
Usage:
Definition:
Serial Cmd:
Default:
Options:
F-8
Used to ignore spurious triggers when Trigger Mode is set to External Edge or
External Level.
To consider a change in state on the trigger input, the level must be stable for the
trigger filter duration. In an edge mode, the reader will trigger a read cycle if the active
state has been uninterrupted for the entire trigger filter duration. In a level mode, the
leading edge is filtered such that on an active edge, the state must be held interrupted
for the trigger filter duration before a trigger will occur.
<K200,trigger mode,leading edge trigger filter,trailing edge trigger filter>
1
0 to 65535 (Trigger filter range: 32.0 µs to 2.10 seconds.)
When Leading Edge Trigger Filter is set to 0, no filtering is performed.
Used to ignore spurious triggers when Trigger Mode is set to External Edge or
External Level.
To consider a change in state on the trigger input, the level must be stable for the
trigger filter duration. In an edge mode, the reader will trigger a read cycle if the active
state has been uninterrupted for the entire trigger filter duration. In a level mode, the
trailing edge is filtered such that on the falling edge, the state must be held for the
trigger filter duration before the trigger will be deemed inactive.
<K200,trigger mode,leading edge trigger filter,trailing edge trigger filter>
1
1 to 65535 (Trigger filter range: 32.0 µs to 2.10 seconds.)
When Trailing Edge Trigger Filter is set to 0, no filtering is performed.
V440-F C-Mount Code Reader User Manual