Omron 2D CODE READER User Manual page 77

Section 5
Communicating with PC and Programmable Controller
Timing Charts
When [One Shot] is Selected as Trigger Mode and [OK Pulse] is
Selected for [OK/NG Output]
The OK/NG signal is not output when reading has failed.
• If [NG Pulse] is selected for [OK/NG Output], the OK/NG signal will not be output when reading is
• If [OFF] is selected for [NG Output], no outputs will be made via RS-232C when reading has failed.
Power ON
RUN
OFF
ON
TRIG
OFF
ON
BUSY
OFF
ON
OK/NG
OFF
ON
(RS-232C)
V400-F050/250/350
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User's Manual
successful.
Completion of start-up
Trigger input
Reading in progress
By pulse width
Serial communication in progress
Reader is active.
Trigger input Trigger input
Reading in progress
Serial communication in progress
Power OFF
Reading in progress
Serial communication in progress