35
Trigger Input and Output Format
Section 3-2
3-2
Trigger Input and Output Format
3-2-1
Trigger Input
Reading is performed by inputting a signal to the TRIG A or B termi-
nals when in MON (monitor) or RUN mode.
TRIG A Terminal (One shot mode)
One reading is performed on the rising edge (OFF to ON) of TRIG A
signal.
Correct Reading: Reading ends, then reading judgment is output.
Incorrect Reading: Reading continues to be performed for the num-
ber of retries specified in the setting conditions.
How to set the number of retries.
page 161, page 169,
page 139, page 155
As the TRIG A signal is synchronous with the shutter input of the
Camera, an accurate image of the moving object can be obtained.
TRIG B Terminal (Continuous mode / Level trigger mode)
Changed by setting of communications specifications.
page 199
The reading accuracy and number of retry settings are disabled for
the TRIG B input.
3-2-2
Output Format
Signals are output in RUN mode but not in MON (monitor) mode.
OK/NG Terminal
Output OK/NG judgment.
Trigger Mode
Detail
Continuous mode (Default
setting)
Performs continuous reading while the TRIG B terminal is ON.
Level trigger mode
Repeats reading while the TRIG B terminal is ON until reading
judgement is OK (readable). An NG will be output if reading is not
successfully completed before TRIG B goes OFF.
Judgment
Detail
OK
OK when 2-dimensional codes are read successfully.
The reading data will be output to RS-232C.
NG
NG when 2-dimensional codes are not read successfully.
The error code will be output to RS-232C.
NG when coincidence judgment is set to ON and the reading data is
not coincident with the registered data 0 to 3.
The reading data will be output to RS-232C.
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