RS-232 Prefix Byte, Ascii Code | NCR 7870 instruction

Chapter 7: Programming 7-45

RS-232 Prefix Byte

The RS-232 Prefix Byte programming mode controls the use of prefix bytes. If you use an RS-232 Prefix Byte, it is the leading character in each message sent to the host terminal. Following it is the message data.

Defaults

Parameter	Default Value
Prefix Byte	Disable

ASCII Code	02

Specific Program Parameters

Prefix Byte

The Prefix Byte parameter contains two selections: Disable and Enable. Scan the Hex 0 tag to disable the Prefix Byte, or the Hex 1 tag to enable it. The default is Disable.

ASCII Code

The ASCII Code parameter permits you to specify what ASCII code to use for the Prefix Byte. Enter your selection by scanning the appropriate two Hex tags (shown in the ASCII Code Chart). You can select any value from 01 through 0F; however, the recommendation is that you use the Start Of Text (STX) ASCII Code which is 02 Hex. Scan the two appropriate Hex tags (Hex 0 through Hex 7 for the first character and Hex 0 through Hex F for the second). The default for this parameter is 02.

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NCR 7870 manual RS-232 Prefix Byte, Ascii Code

Contents

Users Guide Page Table of Contents Site Preparation Users Guide Calibration Installation Operation Programming Users Guide Viii Users Guide Appendix a Programming Worksheets Troubleshooting Revision Record Federal Communications Commission FCC Radio Frequency Interference StatementsCanadian Department of Communications Voluntary Control Council For Interference Vcci Scale Regulatory Mark Applicability This Directive is not applicable to NCR 7870-1000 or NCR Declaration of Conformity NCR Corporation Scale Identification Label Laser Safety Label Laser Safety Country Language Specific IEC Class 1 Laser Labels Laser Module Label Laser Power Milliwatts Microwatts Introduction Models About the NCR 7870 Scanner/Scale Reading the Product Number Common Features 7870-2000-9090 7870-1000-90907870-3000-9090 7870-4000-9090 Bar Code Recognition General Features and Functions Mode 1 Inquiry Mode Decode FeaturesBi-Optic Scanning Pacesetter Plus Mode 3 Operations Mode Mode 2 Real-Time ModeDisplays NCR 7825 Remote Display Integrated Display Interface Types Power SupplyLaser Scanner No Display Sizes section in Site Preparation Programming Scale Certifications Scan Zone Scanner Power RequirementsSoft Power Down Slot Scanner Window Top Plates and Scan WindowsTop Plates Side Scanner Window Scale Functions and Features Scale Features and FunctionsReset / Scale Zero Load Cell Kit Name Kit Type Available for Kits Kit Name Kit Type Available for Kit Name Kit Type Available for Chapter Kit Name Kit Type Available for Kit Name Kit Type Available for Features, Functions, and Kits Site Preparation Getting Started Site Preparation About Site Preparation Site Preparation Customer Responsibilities Extreme Operating Range Environmental RequirementsOperating Range Transit Range Storage Range Power Considerations Checkstand Power and Wiring ConsiderationsPower Applications Power Transients Protection Canadian, and Japanese Checkstand Wiring Wiring Considerations 220Vac Store European Checkstand Wiring International Checkstand Wiring Circuit a Wiring InstructionsRunning Feeder Lines from Main Service Panel Circuit C Circuit B Ventilation Requirements Checkstand Considerations Service Clearance Item Diverter Display Clearance Checkstand Hole NCR 7870-1000 Scanner Checkstand Hole Models 1000 NCR 7870 3000 Scanner Checkstand Hole Models 3000, 4000 Cable Lengths and Hole Sizes DC Power Cable Power Supply toCable Hole Diameters Minimum Hole Diameter 1.52 cm 0.60 Remote Display Cables AC Power Cords Outlet to Power SupplyMinimum Hole Diameter 3.18 cm 1.25 Minimum Hole Diameter 1.90 cm 0.75 Host Interface Cable Corporate Part Length Terminal Number Interface Cables NCR Host Terminals Interface Cables NCR Host Terminals Interface Cables Casio Host Terminals Interface Cables Gilbarco Host Terminals Interface Cables Data Checker Host TerminalsInterface Cables Epson Host Terminals Interface Cables ICL Host Terminals Interface Cables IBM Host Terminals Interface Cables NEC Host Terminals Interface Cables Microbilt Host Terminals Interface Cables Sasi Host Terminals NCR 7870 1000 Dimensions NCR 7870 DimensionsNCR 7870 2000 Dimensions NCR 7870-1000 & 2000 Models NCR 7870-3000 Model NCR 7870 3000 Dimensions NCR 7870-4000 & 4500 Models NCR 7870 4000 & 4500 Dimensions What’s in the Box Reporting a Damaged Unit Checkstand Verification Cable Verification Instructions Installing Unit in CheckstandInstall Cables Single Cable Set-Up Dual Cable Set-Up Datachecker or RS-232 Cable Set-Up Tower Subplate Assembly Cover/Lift Strap Determining if the Unit is Operational If the NCR 7870 Does Not Pass Level O DiagnosticsNCR 7870-1000 and 3000 Scanners NCR 7875-2000, 4000, and 4500 Scanner/Scales Checkout Reading Operation Determining Communications Protocol Scale Address for IBM Installation General Calibration Calibration Exercising the Scale Calibration ProcedureTools Instructions Accessing the Calibration Switch Remove screw securing Lift Strap to unit 11040 Connecting the Field Service Calibration Display Go to Performing the Calibration Performing the Calibration Display Add Weight Remove Weight Verifying Calibration Select the appropriate weight feature from the table below Procedure 1 Increasing Load Test Procedure 2 Over-Capacity Test Procedure 3 Decreasing Load Test Procedure 4 Shift Test Prior Steps Securing the Calibration Switch Calibration Calibration Operation Scan Windows About Using the Operator ControlsStatus Indicators Motion Detector Reset / Scale Zero ButtonAudible Tone Voice Messages Proper Label Orientation About Using the Scanner Multiple Reads Active Scan Zone Bar Code Quality Operating Instructions Power UpScanner Only Models Scanner/Scale Models Not-On-File Error Scanning Procedure Weighing Procedure Changing the Good Read Tone Routine Maintenance Operation Programming Programming Creating the Program How to Program the NCRWriting the Program Entering the Program Save the Program Scan the Save and Reset Tag NormalNormalOperatingOperatingModeMode Programming Mode Abort Programming Tags End DefaultHex 0 Hex F Function Save and Reset Programming Mode Enter All Parameters Scan the Programming Mode tagProgram Entry Example Base Programming State Enter Specific Parameters Ar C odes Code Programming Tips Program Parameter Descriptions DefaultsCommunications Protocol Specific Program Parameters IBM 468x/9x Port 4A Slot Scanner Hex 3 tag Ocia NCR Long HexOcia Non NCR Dual Cable Hex RS-232 Hex 5 tag IBM 468x/9x Port 4B Hhbcr Hex 4 tagOcia Single Cable Hex 6 tag Ocia NCR Dual Cable Hex 7 tag TEC, 4-Bit, Parallel, Dual Cable Hex C tag Casio 4-Bit, Parallel, Dual Cable Hex a tagIBM 1520 BRC, IBM 468x/9x Port 4B Hex B tag Your Program Programming ExampleCommunications Protocol Hex Tag Summary Tone Frequency Hertz Not On File Tone VolumeGood Read Tone Program Example Tone VolumeTone Length Milliseconds Tone On/Off Restart Lockout Timer TimersLockout Timer Milliseconds Active Time Minutes Version D Bar Codes Extend UPC-E to UPC-A Extend UPC-A to EAN-13Periodic Codes Periodic Code Extension Send Data 0 0 1 2 Minimum Characters Allowed Code Check Digit Present Full AsciiTransmit Check Digit Allow 1- or 2-Character Tags Ascii Interleaved 2 Value 1 Bar Code Length 4 1 0 UCC Minimum Data Characters Allowed Bar Codes Minimum Data Characters Allowed UCC Label Identifiers Identifier Type Common Byte 1 and Common Byte Unique Identifier Bar Code TypeCommon Byte Version Number UPC-D Only Label Identifier Parity RS-232 ParametersBaud Rate Handshake Stop Bits and Character Length RS-232 Parameters Baud Rate Parity Interface Control BCC Options Check Digit RS-232 Parameters BCC Interface Options Control Check Digit Ascii Code RS-232 Prefix BytePrefix Byte RS-232 Prefix Byte Terminator Byte RS-232 Terminator Byte RS-232 Terminator Byte RS-232 Communications Options Normal or Eavesdrop ModeMessage Delay Scanner or Scanner/Scale Format Beep at Scale Weight Transmission RS-232 IBM Address Scale ParametersModel Number 995 kg / 13.995 kg Miscellaneous Parameters Second Weight Display Timer IBM Tone Control Good Read Tone Ocia Blank Display In Price ModeOcia Price Display IBM Rexmit Control IBM Tag Data Format Enable/Disable Voice Messages 11822 Pacesetter Plus Information Mode 1 Inquiry 1136 Mode 2 Real Time Codes Description OCH, xyH, xzH 43H, 3yH, 3zH OCH, 0yH, 0zH Mode 3 Normal Decoding was difficult. May be due to Example Host Access to TalliesExamples of Host Access to Tallies An IBM host terminal request for tally C1 0DH C1H C5H C0H Host Reset of Tallies Special Programming Delay Weight Data to IBM Host Terminal Label Construction EAN/JAN/UPC Multi-Symbol Scanning ParametersSingle Label Restriction Transmitting Label Data Hex a tag and the Save and Reset tag Programming Early Beep Disable Preset Good Read Tone Presets Good Weigh Tone When Transmitting Data Hex Terminal Coupon Interface ParametersHex a Hex B Hex C Hex D Coupon Select 2 Parameter Disable Enable 1A SUB 1B ESC 1C FS 1D GS 1E RS 1F US Ascii Code Chart Programming Fault Identification Troubleshooting Scanner Troubleshooting Chart Scale Troubleshooting Chart Scan Programming Mode tag Voice Messages Troubleshooting ChartScan the Diagnostic Mode tag Troubleshooting Shortcuts PurposeFormat Program Entry DefaultsHex Characters Communications Protocol TimersGood Read Tone Bar Codes-1 Bar Codes-4 Bar Codes-3Label Identifiers RS-232 Parameters-1 RS-232 Terminator Byte RS-232 Prefix ByteRS-232 Communications Options Scale Parameters Communications Protocol Worksheets Good Read Tone Timers BAR Codes BAR Codes BAR Codes Code Label Identifiers RS-232 Parameters Appendix a Programming Worksheets A-15 RS-232 Prefix Byte RS-232 Terminator Byte RS-232 Communications Options Scale Parameters Miscellaneous Parameters Appendix a Programming Worksheets A-21 Appendix a Programming Worksheets Index Scanner/Scale Index-3 Slot Scan Window Index-5 Business Reply Mail BST0-2121-90 Nov Printed on recycled paper