APPENDIX C SCANNER SERVICES
CScanner Services
Scanner Services
IMPORTANT The default barcode application is DataWedge. If you prefer to use the Scanner Ser- vices application, you’ll need to take a few extra steps to display this option. Follow the steps below.
• Tap on Start>Settings>System.
• Tap on the TweakIt icon. Under the Advanced tab, tap on Advanced Services Settings, and double-tap on Scanner Services.
• In the Scanner Services dialog box, uncheck Use DataWedge (Uncheck for Psion Legacy).
• Press and hold down the [FN/BLUE] and [Power] buttons to reset the unit.
The Scanners icon provides dialog boxes in which you can tailor barcode scanner configurations and choose the barcodes your scanner will recognize.
• Tap on Start>Settings> System>Scanners icon.
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The parameters are preset with the default settings of the decoded scanner installed in the unit.
NOTE To determine the type of scanner installed in your unit, tap on
Start>Setting>System>System Properties icon.
All internal scanners can be configured using these dialog boxes.
IMPORTANT To enable a newly-installed scanner, press and hold down the [FN] key and the [Power] key simultaneously for a minimum of three seconds.
Restoring Default Settings
If you want to restore the factory defaults after making changes, the defaults can be applied to a selected parameter, sub-tree of parameters, or all scanner parameters.
• Press and hold the stylus on a symbology to display a pop up a menu.
• Choose Default parameter to reset only the parameter you selected, or choose Default all settings to reset all scanner parameters to default settings.
Decoded (Zebra EMDK)
This section describes the tabs used to configure this scanner type.
Barcodes Tab
Options
Laser On Time
The value assigned to this parameter determines how long the laser will remain on when the scan button or trigger is pressed.
Double-tapping on this parameter displays a dialog box in which you can enter a value between 5 and 99. The value is measured in tenths of seconds.
Picklist Mode
Picklist mode lets you target a single barcode within a group. The bar code closest to the aiming cross hair is decoded.
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Advanced Options
Scan Mode
This parameter sets the method of scanning to Scan beam only.
Aim Duration
This parameter determines the total time the aiming pattern appears before the scanner laser begins sweeping. When you double-tap on this parameter, a dialog box is displayed in which you can enter a value from 0 to 30 (0 to 3 sec.). A value of 0 (zero) disables the aiming-dot.
Linear Security Level
This parameter allows you to select the security level appropriate for your barcode quality. There are four levels of decode security for linear code types (e.g., Code 39, Interleaved 2 of 5). Higher security levels should be selected for decreasing levels of barcode quality. As security levels increase, the scanner’s decode speed decreases.
Double-tapping on this parameter displays a dialog box in which you can enter a value from 1 to 4.
Linear security level 1 specifies that the following code types must be successfully read twice before being decoded:
Codabar
MSI Plessey
D 5 of 5
I 2 of 5
All
4 or less
8 or less
8 or less
Linear security level 2 specifies that all types of codes must be successfully read twice before being decoded.
Linear security level 3 specifies that code types other than the following must be successfully read twice before being decoded. The following codes must be read three times:
MSI Plessey
D 2 of 5
I 2 of 5
4 or less
8 or less
8 or less
Linear security level 4 requires that all code types be successfully read three times before being decoded.
Use LED lighting
This option enables and disables the illumination LEDs. In bright light, for example outdoors, the LEDs can remain off saving power.
Barcode Symbologies
The table below list the available symbologies.
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IMPORTANT To improve the decode speed and performance, enable only those codes that are required by the application.
EAN 8
EAN 13
UPC-A
UPC-E
UPC-E1
UPC/EAN
Code 11 (disabled)
Code 39
Code 93 (disabled)
Code 128
Codabar
Composite AB (disabled)
Composite C (disabled)
Code 11 (disabled)
Discrete 2 of 5 (disabled)
GS1 DataBar (disabled)
Interleaved 2 of 5 (disabled)
Matrix 2 of 5 (disabled)
MSI Plessey (disabled)
Zebra EMDK Barcode Symbologies
TLC-39
Trioptic (disabled)
PDF-417
Macro PDF-417
Micro PDF-417
Macro-Micro PDF-417
2D Aztec (disabled)
2D Data Matrix
2D Maxicode
2D QR Code
Postal: Australian (disabled)
Postal: Canadian (disabled)
Postal: Japanese (disabled)
Postal: Kix (disabled)
Postal: Korean (disabled)
Postal: PlaNET (disabled)
Postal: PostNET (disabled)
Postal: Royal Mail (disabled)
Options Tab
The Options tab allows you to tailor the double-click parameters, the display options associated with your scanner, and data handling.
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Double Click Parameters
Click Time (msec)
This parameter controls the maximum gap time (in milliseconds) for a double-click. If the time between the first and second clicks of the scanner trigger is within this time, it is considered a double-click. The allowable range is 0 to 1000. A value of zero disables this feature.
A double-click produces different results depending on whether or not a value is assigned in the “Click Data” parameter. If a value is assigned for the “Click Data” parameter, double-clicking the scanner trigger inserts the
“Click Data” value rather than initiating a scan.
Click Data
For both integrated and external scanners, this parameter determines which character is sent to the application installed in your Workabout Pro4 following a double-click. A dialog box appears, asking that you press the key you want to insert. The ASCII/Unicode key value of the keypress is displayed.
Display Parameters
Scan Result
When this parameter is enabled, the type of barcode and the result of the scan appear on the screen. Note that this information is only displayed after a successful decode and is visible only while the scanner button is pressed. When the button is released, this information is cleared from the screen.
Scan Indicator
When this parameter is enabled, the laser warning logo appears on the display whenever the scanner is activated.
Scan Result Time (msec)
The value assigned to the “Scan Result Time (sec)” parameter determines how long the scan results of a successful scan are displayed on the screen. Time is measured in seconds, and a value of “0” (zero) disables the parameter. When you choose this option, a dialog box appears where you can enter a value.
NOTE To remove the scan result from the screen before the “Result Time” has expired, point the scanner away from the barcode and press the trigger.
Good Scan Beep and Bad Scan Beep
These parameters determine whether or not the Workabout Pro4 emits an audible scanner beep when a good
(successful) scan or a bad (unsuccessful) scan is performed. Set these parameters to tailor the behaviour of this parameter.
Multiple Beep Tones
This parameter determines whether or not multiple beeps will be allowed.
Soft Scan Timeout
This parameter is used by the Mobile Devices SDK Scan function (soft-scan: starting a scan session via the
SDK function, instead of a physical user trigger press). The value assigned to this parameter determines the soft-scan timeout from 1 to 10 sec. (default is 3 sec.).
Scan Log File
If this parameter is enabled, the input barcode and the modified/translated output barcode are logged in the file
\Flash Disk (or \Application)\ScanLog.txt. Keep in mind that if the “Scan Log File” is enabled, there is a slight performance effect when performing multiple scans since the log file is written to persistent storage.
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Data Handling
This option allows you to choose the code page your Workabout Pro4 will use to display data – Default Local
ASCII or ISO-8859-1 Latin 1.
Codepage:
Tapping on this option displays a window in which you can define the code page your Workabout Pro4 will use
– either Default Local ASCII or ISO-8859-1 Latin 1
If you choose Default Local ASCII, the code page of the local OS is used. For example, if the local OS uses double-byte Chinese characters, choosing this option will filter data through the local ASCII of that OS and display it accurately, in this example, using double-byte characters.
If you choose ISO-8859-1 Latin 1, data will be displayed according to the character mapping of this Latin 1 code page, ignoring the local OS code page.
Data Transmission:
Tapping on this option displays a window in which you can how data will be handled – either Paste data or
Wedge data .
If Paste data is enabled (highlighted), the barcode output is copied to the system clipboard and then automatically pasted to an application.
If Wedge data is enabled, each character that composes the barcode data is turned into a keyboard sequence that is transmitted to the cursor location of the current application – that is, to the application, it looks like the barcode data was typed on the keyboard.
NOTE The default Paste data option is a faster method of data transmission.
Translations Tab
The Translations tab allows you to define up to 10 cases, each consisting of up to 10 rules in sequential order.
Only one case will be applied to a barcode and a case will only be applied if all rules specified in the case are successful – if a rule within a case fails, the entire case fails.
• In the Translations tab, double-tap on a Case # to create rules.
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• Tap on the No rule drop-down menu to display the rules.
When you choose a rule, an associated screen is displayed in which you can define the rule.
Case Rules
The case rules are defined as follows:
• No rule – ignored.
• Match at index – matches the match string at a specified index.
• Match and replace at index – matches the match string at a specified index and replaces/changes it.
• Replace at index – replaces/changes unspecified data in a given range.
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• Add barcode prefix/suffix – adds a global prefix or suffix.
• Verify barcode size – verifies the barcode size. This rule should generally be assigned first, before creating subsequent rules.
• Search and replace – replaces all instances of the match string. (Note that this rule cannot fail.)
IMPORTANT Keep in mind that the effects of previously applied rules must be taken into account when creating subsequent rules. For example, if the barcode size is important, it should be checked before any rules that might change the size are applied.
The information about the status of each case/rule is displayed in the scan log file (see “Scan Log File” ) when
enabled. This is useful if a case fails, and you are trying to determine why a rule is failing.
Ports Tab – Port Replicator Port A (COM5) and Port B (COM6)
Port Replicator Port A (COM5) and Port B (COM6) are standard RS-232 DE-9 DTE ports on the Workabout
Pro4 port replicator module, available on some cradle types.
Enabled
This parameter must be set to on in order for Workabout Pro4 to recognize the device connected to the Port
Replicator 9-pin (COM5).
Power (COM6 only)
Pin 9 on Workabout Pro4 COM6 is reserved for 5V power out and is defaulted to OFF. This parameter must be set to on to enable power to a Vehicle cradle.
Baud
Double-tapping on this parameter displays a pop-up window in which you can choose an appropriate rate of data transfer.
Data Bits
This parameter determines the number of data bits included in each asynchronous data byte. Most devices use 8-bit data bytes. Double-tapping on this option displays a pop-up window in which you can choose either 7 or 8 data bits.
Parity
This parameter determines the type of parity checking used on the data going through the port replicator port.
Double-tapping on this option displays a pop-up window in which you can choose the appropriate parity.
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Stop Bits
This parameter specifies the number of stop bits — 1, 1.5 or 2 — used for asynchronous communication.
Trigger On Sequence and Trigger Off Sequence
If a SICK scanner connected to an Workabout Pro4 port requires a serial stream of data bytes to trigger the scanner on and another to trigger the scanner off, the Trigger On Sequence and Trigger Off Sequence parameters allow you to define these serial streams.
Double-tapping on Trigger On Sequence or Trigger Off Sequence displays a screen with a hex array of 10 elements.
These parameters work in conjunction with Manage Triggers sending on and off data streams to the trigger module you assigned. For example, suppose you launch Manage Triggers and choose Decoded Scanner as the ‘module to trigger’. Next, you assign a ‘trigger key’ — for this example, . (period). To define the serial stream of data bytes to control the on and off function of the ‘trigger key’, enter a hex value in the Trigger On
Sequence and the Trigger Off Sequence fields. When you press the trigger key, the Trigger On Sequence is sent and when you release the trigger key, the Trigger Off Sequence is sent, turning the trigger key on and off.
