Selectable Scanning Methods; Sht Signal (External Lighting Synchronous Output Signal) - Denso QB30-SR User Manual

11.5 Selectable Scanning Methods

Data output timing and outputs can be set for each scanning mode as shown below.
Scanning mode
Trigger mode
Continuous reading mode
A/B
Auto sense
Scanning mode
Trigger mode
Continuous reading
mode A/B
Auto sense

11.6 SHT Signal (External Lighting Synchronous Output Signal)

The scanner output the SHT signal that synchronize to the exposure operation of the scanner from the output terminal 2
when the output terminal 2 is set in the SHT signal. Polar character of the SHT signal can be selected from the
following two types using the commands or configuration software.
Signal polarity
Tr ON
Tr OFF
Note:
1. Some external lights which will take time for start-up, for example a halogen lamp, may not respond quickly or light up
properly. You are required to use a light, such as a LED, with a faster response.
2. The output terminal 2 output is a NPN open collector and power shall not be supplied from the terminal. Do not apply
power exceeding the specified voltage level to the output terminal 2. It may cause the scanner to break or malfunction.
Data output
timing
Synchronous mode
Asynchronous mode
Asynchronous mode
Asynchronous mode
Verification OK Verification NG
Enabled Enabled
Enabled Enabled
Enabled Enabled
Disabled Disabled
During Exposure Except during exposure
HIGH
LOW
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Non-scan code OK signal
Enabled Enabled
Enabled Enabled
Disabled Enabled
Disabled Disabled
LOW
HIGH
NG signal
Enabled
Enabled
Disabled
Disabled