Opticon NFT 2135, NFT 1125 manual Selecting the Read Mode

Page 53

Manual No. 25-NFT1121-01

Series NFT-1121/2135 Mini CCD Fixed Position Scanners

24. Selecting the Read Mode

Computer

Function

Bar Code

 

Command

/Description

Command

 

(Z7)

START/END

,Z7,

 

Programming Menu

 

 

 

 

 

S0

Single Read Mode

,S0,

 

(Trigger enabled mode only)

 

 

 

 

 

S1

Multiple Read Mode

,S1,

B

 

 

 

 

 

 

 

S2

Continuous Read Mode

,S2,

 

 

 

 

 

The operation of the scanner in the various read modes is described in the table below. The “Continuous Read” mode is helpful in positioning the scanner for optimum reading. In “Continuous Read,” the scanner’s buzzer functions like a Geiger counter, sounding the most active at the position achieving the greatest number of good reads.

Mode

Trigger Function Enabled

Trigger Function Disabled

 

After receiving a trigger pulse,

Scanner will read different bar codes

 

scanner will read multiple,

 

in succession if they are presented to

 

different bar codes in succession

Multiple

the read window.

Read

until it times out.

 

Scanner will not read the same

Scanner will not read the same bar

 

 

bar code twice if they are

 

code twice if they are consecutive.

 

consecutive.

 

 

 

Scanner will read the same bar

 

Continuous

code continuously after receiving

Scanner will read the same bar code

Read

a trigger pulse until scanner

continuously.

 

times out.

 

Single

Scanner will read only one bar

 

code after receiving a trigger

Same as Multiple Read mode, above.

Read

pulse.

 

 

 

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Contents Series NFT 1125/2135 User’s ManualThis page left intentionally blank for repagenation Contents This page left intentionally blank for repagenation Organization of this Manual This page left intentionally blank for repagenation Product Overview Quick Start-Up ProcedureSection Introduction and Getting Started Page Physical Specifications Section Technical SpecificationsSymbologies Supported Optical SpecificationsRS232 Communications Specifications Electrical SpecificationsEnvironmental Specifications Connector Pin-OutsPage Getting Optimum Performance Section Positioning the ScannerField-of-View Maximum Readable Bar Code Width LEDs Read Rate Test Measuring Scanner PerformanceTips for Insuring Highest Data Integrity Application NotesTips for Achieving High Throughput Tips for Verifying the Presence of a Bar Code Default Settings Section Configuring the ScannerProgramming Menus & Commands Page Technical Assistance and Support Section Application Engineering SupportCommon Causes of Poor Performance Modified and/or Customized ScannersPage Appendix a Programming Menus & Commands Index Programming via Bar Codes Programming via Computer CommandsIntroduction Page Computer Function Bar Code Command Description Global Default & Scanner ConfigurationsSymbology Selection Symbology Selection Add/Activate Specific Bar Code SymbologiesAdd/Activate Specific Bar Code Symbologies Delete/Deactivate Specific Bar Code Symbologies Options for UPC Options for Code Options for Codabar NW-7 Options for Codabar NW-7 5 Standard and Interleaved Format Options for 2CPN Options for IataFixing the Number of Digits Creating a Prefix and/or Suffix Setting Prefixes Identifying the Symbology Setting Prefixes Identifying the Symbology Setting Suffixes Identifying the SymbologySetting Suffixes Identifying the Symbology Direct Input of Numeric Characters Direct Input of Alpha Characters Direct Input of Control Characters Enable Number of Characters/Digits TransmittedSTART/END Enable Number of Characters/Digits TransmittedDisable Number of Characters/Digits Transmitted Communication Parameters Disable Number of Characters/Digits TransmittedCommunication Parameters Handshaking Buzzer Operation Buzzer Operation Positive & Negative Bar CodesSetting the Trigger Function Selecting the Read Mode Scanner Timeout Trigger Enabled Mode only Redundant Decoding STX?ETX for no read Transmitting Error Indications Trigger Enabled onlyPrint Quality Adjustments Page 1126/2126 Side View Appendix B Dimensional Drawings1127/2127 Front View Appendix C Optical Performance Charts