Chapter 7 Scanning Functions; Data Verification Mode; Data Verification Read Procedure - Denso AT30Q-SM User Manual

Chapter 7 Scanning Functions

7.1 Data verification mode

The Data verification mode verifies the code data read against the master data stored in the scanner and reports the match
status with data output.
Data verification read is available in two types--"n-point verification" and "2-point verification," which can be selected with
the configuration software (ScannerSetting_2D).
Selecting the n-point verification requires registering master data only one time for 1:n verification. The scanner verifies all
code data read after registration against the master data.
The 2-point verification refers to 1:1 verification. Selecting it requires registering master data each time preceding code
scanning. This way, the 2-point verification read alternately repeats master data registration and code scanning.
In n-point verification read, master data can be registered with "preset master registration" or "scan master registration"; in
2-point verification read, with "scan master registration" only. The preset master registration registers master data with the
configuration software (ScannerSetting_2D) beforehand. The scan master registration registers master data by scanning a
master code label.
The master data registered by either method will be sent to the host computer when you scan the "Output master data" code
given on page 23.
The verification parameters can be specified with the configuration software (ScannerSetting_2D).

7.1.1 Data verification read procedure


n-point Verification
Preset master registration
This is available only when n-point verification is selected. Register the code type and data to be used for verification using
the configuration software (ScannerSetting_2D). Up to 99 digits can be registered.
The registered master data will be preserved even if the scanner is turned off. To clear it, first clear the registered master data
stored in the host computer with the configuration software (ScannerSetting_2D) and then send the new setting data to the
scanner.
Scan master registration
1) Switch the scanner to the Data Verification mode and select the RS-232C or USB-COM interface.
2) Send a scan entry control command "E" from the host to the scanner. (Refer to Appendix 2 for control commands.) The
indicator LED lights in green.
3) Use the scanner to scan a master code to be registered. (The scanner operates in the trigger switch operating mode
currently set.) After registration of master data, the indicator LED turns blue and then goes OFF.
4) Use the scanner to scan a target code. The scanner verifies the code read against the master data registered and then
outputs the result. After a successful read, the indicator LED lights in blue.
During the registration operation above, if the master data has fewer characters than specified (e.g., less than the specified
verification start position), the registration operation aborts with an error.
Even if "Preset master registration" has been made, you can make "Scan master registration." If both have been made, the
number of characters to verify that has been specified with "Preset master registration" and the master data that has been
specified with "Scan master registration" will be valid.
Note: The registered master data will be cleared when you customize the scanner by modifying the parameters with the
configuration software (ScannerSetting_2D) or a batch-process QR code symbol.
Note: If no master data has been entered by either "Preset master registration" or "Scan master registration," the
indicator LED flashes in red, during which it is impossible to scan codes. During blinking, codes cannot be
scanned.
Note: When the USB keyborad interface is used in the n-point Verification mode, the n-point Verification is disabled
and the normal reading mode is automatically selected if preset registered data is not present.
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