Chapter 7 Scanning Function - Denso GT20Q-SB User Manual

Chapter 7 Scanning Function
7.1 Data Verification Mode
When placed in data verification mode, the data of the code that has been scanned is compared with that of the master data to
verify whether they match.
Two data verification modes, "n-point verification" and "2-point verification," are available. Make a selection in the
configuration software (ScannerSetting_2D).
When "n-point verification" is selected, master data is registered once and then 1:n verification is performed to verify any
codes scanned subsequently against this master data.
"2-point verification" is a 1:1 verification: once master data is registered and the scanner has compared a scanned code with
this, the scanner enters standby state awaiting new master data registration. In this way, the scanner repeatedly alternates
between master data registration and code scanning.
Master data registration methods: for "n-point verification" master data can be registered through "preset master registration"
or "master scanning registration"; for "2-point verification" registration is only available through "master scanning
registration". With "preset master registration," master data is registered in advance using the configuration software
(ScannerSetting_2D). For "master scanning registration," master data is registered by scanning the master code label.
Registered master data can be outputted to the host by scanning the "master data output" code (refer to
regardless of which of the above registration methods is used.
Parameters related to verification scanning can be set using the configuration software (ScannerSetting_2D).
7.1.1 Data Verification Scanning Procedures

n-Point Verification
Preset Master Registration
Preset master registration is only available in the n-point verification mode. Register the "code type" and "the portion of data
to be verified" using the configuration software (ScannerSetting_2D). Up to 99 digits of data can be registered.
The registered master data will be retained even after the scanner is turned off. To clear the registered data, use the
configuration software (ScannerSetting_2D) and clear the master data registered in the host computer, and download the
newly configured data to the scanner.
Master Registration
1) Switch the scanner to the data verification mode.
2) Press the magic key for approximately two seconds, or send the scan entry control command "E" from the host computer
to the scanner (refer to
3) Scan and register the code to be used as master data. (Scan the code with the procedure for the trigger switch operation
mode selected.) The indicator LED will briefly illuminate in blue after master data is registered, and then go out.
4) Scan a code to verify. The scanner outputs the verification result after verifying the scanned data against the registered
master data. The indicator LED illuminates in blue when the scanner has scanned a code successfully.
When registering the master data, an error occurs if the data read does not meet the number of characters of the registered
verification data, such as when the number of digits is less than the specified verification starting position.
"Master scanning registration" can be carried out even if a "preset master registration" exists. In this case, the number of
digits registered in the "preset master registration" is used as the verification digit number, and the data registered in the
"master scanning registration" is used as the verification content.
Registered master data is outputted to the host when the "master data output" code (refer to
Appendix 2 for control commands), and the indicator LED illuminates in green.
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Section 7.1.3),
Section 7.1.3) is read.