2-1
Controlling Operation and Data Out
put
with Parallel
I/O
This section explains how to directly connect the code reader to an external device by the I/O cable
and the methods that you can use to control the code reader from the external device.
2-1-1
Basic Operation with a Parallel
I/O
Connection
This section describes the basic connections and signal flow with external devices.
Operation for one of the primary uses is described in the example below.
Trigger sensor
External devices
(1) Trigger input
Code
Reader
(3) Judgement results
are output.
(2) Read is execute.
Example of Trigger Input and OUTPUT signal
Below is an Output assignment example and Timing chart.
[Example assignment of OUTPUT signals]
• Output 1: In Read Cycle
It turns ON while the code reader is in its Read cycle.
• Output 2: On Match (or Good Read)
It turns ON when there is a Good Read or when it matches with the Master Symbol (if using the
Matchcode
function).
• Output 3 : On Mismatch (or
No Read
)
It turns ON when there is a
No Read
or when it does not match with the Master Symbol (if using
the
Matchcode
function).
For how to set up the Output signal assignments, please refer to
How to Assign the Output Signals
<Timing Chart>
OFF
ON
OFF
ON
OFF
ON
In Read Cycle
Turns ON on Good Read.
Read executed by Trigger Input.
Length of time to hold the signal
can be changed in settings. *1
OFF
ON
1.
Trigger input
(TRIG signal)
2.
Output1
In Read Cycle
3.
Output2
Match
(or Good Read)
4.
Output3
Mismatch
(or
No Read
)
Turns ON when
No Read
.
Length of time to hold the signal
can be changed in settings. *1
*1 For how to change the length of time to hold the signal, please refer to
timing of the Output Signal (Output 1 to 3)
2 Controlling Operation and Data Output with Parallel
2 - 2
V430-F Series Autofocus Multicode Reader User Manual for Communication Settings
