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DS2100

Code Verifier

If the DS2100 is used as a Code Verifier, it is possible to indicate to the scanner what

code to store as the verifier code by means of an external hardware input.

The Code Verifier parameter must be enabled and the configuration parameters to

allow correct Code Type reading must be saved to the scanner in order to read the

verifier code.

To activate the input, connect together pins 23 and 24 (CTSAUX and RTSAUX) of

the 25-pin connector (for example with a push-button), before the active edge of the

External Trigger input (or before the code passes under the laser beam for the

Automatic operating mode). The next read code will be stored as the verifier code in

the scanner's RAM and NON-VOLATILE (EEPROM) memory by default. Then, the

two pins must be disconnected.

Since it uses part of the RS232 auxiliary serial interface, this interface is limited when

using this option and the Handshake selection must not be set to RTS/CTS.

2.3.4 Inputs

The inputs available on the connector supplied with the scanner are the pins relative

to the External Trigger, as indicated below:

Connector Name Function

9-Pin 25-Pin

8 18 EXT TRIG+ external trigger +

9 19 EXT TRIG- external trigger -

The External Trigger input is used in the On-Line operating Mode and tells the

scanner to scan for a code. The active state of this input is selected in software.

Refer to the WinHost Help On Line.

The yellow LED (Figure A, 4) is on when the External Trigger forces a current flow

through the EXT TRIG+ and EXT TRIG- pins.

This input is optocoupled and can be driven by both an NPN or PNP type command.

The connections are indicated in the following diagrams:

Datalogic DS2100 User Manual

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