KEYENCE BL-700 Series User Manual

Page 103

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89

Chapter 5 Serial Communication

5

Explanation of Direct Control Commands

The following describe direct control commands in details.

Trigger on

Command: LON
Response: None

Trigger off

Command: LOFF
Response: None

Even when the read operation is controlled with these commands, the BL-700
performs the same operation as with the trigger input (

➮ see P.30 to 36).

“Trigger input: on” corresponds to LON, and “trigger input: off” corresponds to
LOFF.

The BL-700 starts read operation on receipt of LON and stops it on receipt of
LOFF.
When a bar code can be correctly read and the read data has already been set,
you need not send LOFF.

The command characters can be freely changed (within 8 characters).

Reading rate check

Command: TEST1
Response: None

Tact check

Command: TEST2
Response: None

Resetting test

Command: QUIT
Response: None

After using the test mode, be sure to reset it.

Turning the OK output on

Command: OKON
Response: OK

Turning the NG output on

Command: NGON
Response: OK

Turning the OK/NG outputs off

Command: ALLOFF
Response: OK

Read operation control

This command specifies the data read timing.

Test mode control

Starts or quits the test mode.

OK/NG output control

Directly turns on/off the OK/NG output.
This enables you to easily check wiring.

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