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6-21

Simple Serial Interface

PARAM_REQUEST

Description: Request values of selected parameters

Packet Format

Field Descriptions

The host uses this message to request selected parameters from the decoder.

Host Requirements

The host requests the decoder’s current values for specific parameters by listing the parameter
numbers in the Request_Data field. If the host asks for a parameter value not supported by
the decoder, the decoder does not send a value for this unsupported param_num. If none of
the requested values is supported, an empty PARAM_SEND message is transmitted. If the
host requests the value of all the parameters, it sends a special param_num called
ALL_PARAMS (0xFE) in the first position of the Request_Data field.

Note:

The decoder’s response to this command is PARAM_SEND, not
ACK. Depending on the time-out set, and the number of parameters

Length

Opcode

Message Source

Status

Request Data

Checksum

0xC7

0x04

Field Name

Format

Size

Description

Length

Length of message (not
including checksum).

1 Byte

Length Field

Opcode

0xC7

1 Byte

Identifies this Opcode type.

Message
Source

4 = Host

1 Byte

Identifies where the message is
coming from.

Status

Bit 0: Retransmit
Bit 1-7: Unused

1 Byte

Identifies the transmission status.
Unused bits must be set to 0.

Request Data

<Param_num><Param_num>
<Param_num>...

Variable

Checksum

2's complement sum of message
contents excluding checksum.

2 Bytes

Checksum of message.

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Содержание SE 923

Страница 1: ...SE 923 Scan Engine Integration Guide...

Страница 2: ...2 70 37052 01 Rev A February 1999 Symbol Technologies Inc One Symbol Plaza Holtsville N Y 11742 1300...

Страница 3: ...SE 923 Scan Engine Integration Guide 70 37052 01 Rev A February 1999...

Страница 4: ...or otherwise under any Symbol Technologies Inc intellectual property rights An implied license only exists for equipment circuits and subsystems contained in Symbol products Symbol is a registered tr...

Страница 5: ...gement 1 4 Chapter 2 Installation Mounting 2 1 Installing the SE 923 I000A 2 5 Considerations 2 5 Housing Design 2 5 Grounding 2 5 ESD 2 5 Environment 2 6 Optical 2 6 Positioning the Window 2 6 Avoidi...

Страница 6: ...nable Disable UPC E1 5 25 Enable Disable EAN 8 5 26 Enable Disable EAN 13 5 27 Enable Disable Bookland EAN 5 28 Decode UPC EAN Supplementals 5 29 Decode UPC EAN Supplemental Redundancy 5 31 Transmit U...

Страница 7: ...it 5 64 Convert I 2 of 5 to EAN 13 5 65 Enable Disable Discrete 2 of 5 5 66 Set Lengths for Discrete 2 of 5 5 67 Enable Disable Codabar 5 69 Set Lengths for Codabar 5 70 CLSI Editing 5 72 NOTIS Editin...

Страница 8: ...Enabled and Packeted Data 6 35 ACK NAK Enabled and Unpacketed ASCII Data 6 36 ACK NAK Disabled and Packeted DECODE_DATA 6 37 ACK NAK Disabled and Unpacketed ASCII Data 6 37 Communication Summary 6 38...

Страница 9: ...cedure A 5 The Host A 6 Transmitting Data A 6 Sample Code for Host Transmit Procedure A 7 Receiving Data A 7 Sample Code for Host Receive Procedure A 8 Transaction Examples A 9 Appendix B Miscellaneou...

Страница 10: ...viii SE 923 Scan Engine Integration Guide...

Страница 11: ...tep by step procedures appear as numbered lists Service Information If you have a problem with your equipment contact the Symbol Support Centers Before calling have the model number serial number and...

Страница 12: ...653 5350 Canada Symbol Technologies Canada Inc 2540 Matheson Boulevard East Mississauga Ontario Canada L4W 4Z2 905 629 7226 United Kingdom Symbol Technologies Symbol Place Winnersh Triangle Berkshire...

Страница 13: ...Germany 49 6074 49020 Outside Germany Italy Symbol Technologies Italia S R L Via Cristoforo Columbo 49 20090 Trezzano S N Navigilo Milano Italy 2 484441 Inside Italy 39 02 484441 Outside Italy Latin A...

Страница 14: ...has been subjected to unusual physical or electrical stress misuse abuse power shortage negligence or accident or iv which has been used other than in accordance with the product operating and handlin...

Страница 15: ...the exchange Customer accepts full responsibility for its software and data including the appropriate backup thereof Repair or replacement of a product during warranty will not extend the original war...

Страница 16: ...xiv SE 923 Scan Engine Integration Guide...

Страница 17: ...ut line two serial I O lines two hardware handshaking lines trigger and wake up lines non volatile memory for storing decoder capability parameters The SE 923 has a low power mode that maintains the i...

Страница 18: ...light and the light spaces reflect it A photo diode senses the reflected laser light and generates a current proportional to the reflected light signal That current in turn produces an analog voltage...

Страница 19: ...ation This reset period is 70 msec nominal at 5 V dc A reset can occur upon power up or power supply voltage falling below 2 8 V nominal A reset time is generated in the CPU from an external resistor...

Страница 20: ...ened from the Low Power mode before performing any functions Whenever the SE 923 is in the Low Power mode the PWRDWN signal is asserted This signal is used by the host to remove power from the SE 923...

Страница 21: ...1 second before re entering Low Power mode Therefore if the power mode parameter is set to Low Power the host should perform its first action within the 1 second time period Table 1 2 Waking Up the S...

Страница 22: ...1 6 SE 923 Scan Engine Integration Guide...

Страница 23: ...nsiderations are presented together with recommended window properties Mounting There are two mounting holes M1 6 and two locator holes on the bottom of the chassis see Figure 2 1 Figure 2 2 illustrat...

Страница 24: ...2 2 SE 923 Scan Engine Integration Guide Figure 2 1 SE 923 I000A Mounting Diagram Dimensions are in mm in Unless otherwise noted all tolerances are 0 1mm 0 004 in...

Страница 25: ...2 3 Installation Figure 2 1 SE 923 I000A Mounting Diagram Cont d Dimensions are in mm in Unless otherwise noted all tolerances are 0 1mm 0 004 in...

Страница 26: ...2 4 SE 923 Scan Engine Integration Guide Figure 2 2 SE 923 Decoder Board Mounting Diagram Dimensions are in mm in Unless otherwise noted all tolerances are 0 1mm 0 004 in...

Страница 27: ...from the window itself can often be troublesome Also for particular window tilt angles reflections from the window can bounce off the top or bottom of the housing and reach the detector In addition t...

Страница 28: ...he inside of the window is not reflected back into the collection optics of the scan engine The window can be positioned more nearly parallel to the face of the scanner if an anti reflection coating i...

Страница 29: ...2 7 Installation Figure 2 3 Exit Window Positioning CASE 1 CASE 2...

Страница 30: ...f engine Table 2 2 Exit Window Tilt Angle Distance from Scan Engine on center line in 0 15 0 2 0 25 0 5 0 75 1 00 1 50 2 00 Case 1 Minimum Window Tilt Uncoated 38 5 33 5 29 20 15 5 13 11 9 5 Minimum W...

Страница 31: ...ust be protected from the environment due to its susceptibility to attack by chemicals mechanical stresses and UV light Reasonably good impact resistance Acrylic can be ultrasonically welded CR 39 A t...

Страница 32: ...About Coatings If you are using an anti reflective coating you don t need a polysiloxane coating If you decide not to we recommend CR 39 without a protective coat In all cases you must adhere to the...

Страница 33: ...l sizes densities print quality etc there is no simple formula to calculate this optimum symbol distance Try this a Measure the maximum and minimum distance at which your symbols can be read b Locate...

Страница 34: ...position Read the sections of this chapter concerning window quality coatings and positioning 6 Give the scan engine time to dwell on the symbol for several scans Poor quality symbols may not read on...

Страница 35: ...p cable p n 50 16000 139 Both cables are available from Symbol Technologies Figure 2 4 Flex Strip p n 15 10750 01 Tapered 11 equal spaces 0 100 0 005 1 100 Tol Non Cum 0 050 0 020 1 20 0 015 4 000 0 0...

Страница 36: ...2 0 04 5 00 1 00 0 22 0 01 5 50 0 10 See Note 1 0 26 0 01 6 50 0 10 2 09 0 20 53 00 5 00 0 02 0 01 0 50 0 05 0 011 0 002 0 30 0 05 0 25 0 08 10 00 2 00 2 Dimensions are in inches mm 0 004 0 10 2 Plac...

Страница 37: ...quirements Input Voltage Input Current Standby Current Surge Current Vcc Noise Level 3 3 5 0 V DC 10 68 mA 3 3V DC 78 mA 5 0V DC 35 A typical 50 A max 5VDC 200 mA typical 100 mV pk pk 30 Hz 50 kHz Sca...

Страница 38: ...ng surface 20 23 C and 60 C for a period of 0 7 msec Vibration Withstands a sinusoidal vibration of 4 G along each of the 3 mutually perpendicular axes for a period of 1 hr per axis over a frequency r...

Страница 39: ...distance of 10 inches Tolerance is reduced at extreme ends of the working range Skew Measured on a 20 mil symbol at a distance of 7 inches Figure 3 1 Pitch Skew and Roll SE 923 Side Scan Beam Symbol...

Страница 40: ...e maximum usable length of a symbol at any given range is shown below To calculate this distance refer to the formula on the following page Figure 3 2 SE 923 I000A Standard Version Decode Zone in cm S...

Страница 41: ...1 8 in 4 6 cm 10 0 in 25 4 cm 2 0 in 5 1 cm 9 7 in 24 6 cm 13 mil 100 UPC 12345678905 90 MRD 1 9 in 4 8 cm 13 0 in 33 0 cm 2 0 in 5 1 cm 12 0 in 30 5 cm 20 mil Code 39 1 2 2 123 90 MRD Note 2 20 0 in...

Страница 42: ...A 2 Where D Distance in inches from the front edge of the housing to the bar code d The housing s internal optical path from the edge of the housing to the front of the scanner A Scan angle in degree...

Страница 43: ...4 6 11 12 I I I I Received Data Serial input port Clear to Send Serial port handshaking line Wake Up When the SE 923 is in the low power mode pulsing this pin low for 200 nsec awakens the SE 923 Trig...

Страница 44: ...power mode Beeper Low current beeper output Decode LED Low current decode LED output Min Max Condition VOL 0 45 IOL 1 6mA VOH 2 40 IOH 400 A VCC 3 3 4 2 IOH 400 A VCC 5 5 Table 3 3 Electrical Interfa...

Страница 45: ...end low to first start bit note 2 Notes 1 If byte to byte delay exceeds the maximum specified time a transmission error is declared The sender is expected to retransmit the packet in its entirety 2 Th...

Страница 46: ...From wake up to full operation see note 5 11 msec tdlgl Figure 4 8 Trigger low after full operation see notes 6 and 7 0 1 sec Table 4 1 Timing Characteristics Continued Symbol Figure Parameter Min Max...

Страница 47: ...racters indicate the name of the signal or the logical status of that signal Designations are a WKUP b BPR c Host CTS d PWRDWN e PWREN f float fall time g trigger h logic level high l logic level low...

Страница 48: ...st Points Note AC inputs during testing are driven at VBATT 0 5 for logic 1 and 0 45 for logic 0 Timing measurements are made at 0 2 VBATT 0 9 and 0 2 VBATT 0 1 Figure 4 1 General Characteristics VBAT...

Страница 49: ...tes Figure 4 2 Serial I O Timing Host Transmit Figure 4 3 Serial I O Timing Host Transmit start bit 8 data bits parity start bit trlcl tclxl Host RTS Host CTS Host TXD txlxl 1 stop bit Host RTS Host C...

Страница 50: ...E 923 Scan Engine Integration Guide Figure 4 4 Serial I O Timing Decoder Transmit Figure 4 5 Hardware Trigger Timing start bit 8 data bits parity start bit Host RTS Host CTS Host TXD tvlvl TRIG tghtw...

Страница 51: ...4 7 Application Notes Figure 4 6 Beeper Timing Figure 4 7 VBATT Rise Time Figure 4 8 Wake Up Timing BPR tblht 0V 4 5V tehpm VBATT PWRDWN WKUP TRIG tdlgl taldl...

Страница 52: ...4 8 SE 923 Scan Engine Integration Guide...

Страница 53: ...wn You can change the default values by Scanning the appropriate bar codes included in this chapter These new values replace the standard default values in memory The default parameter values can be r...

Страница 54: ...xED 0 0 sec 5 11 Power Mode 0x80 Low Power 5 12 Trigger Mode 0x8A Level 5 13 Time out Between Same Symbol 0x89 1 0 sec 5 15 Beep After Good Decode 0x38 Enable 5 16 Transmit No Read Message 0x5E Disabl...

Страница 55: ...racter 5 36 UPC E1 Preamble 0x24 System Character 5 37 Convert UPC E to A 0x25 Disable 5 38 Convert UPC E1 to A 0x26 Disable 5 39 EAN 8 Zero Extend 0x27 Disable 5 40 Convert EAN 8 to EAN 13 Type 0xE0...

Страница 56: ...x2B Disable 5 55 Code 39 Full ASCII Conversion 0x11 Disable 5 56 Code 93 Code 93 0x09 Disable 5 57 Set Length s for Code 93 0x1A 0x1B 4 55 5 58 Interleaved 2 of 5 Interleaved 2 of 5 0x06 Enable 5 60 S...

Страница 57: ...Disable 5 72 NOTIS Editing 0x37 Disable 5 73 MSI Plessey MSI Plessey 0x0B Disable 5 74 Set Length s for MSI Plessey 0x1E 0x1F 6 55 5 76 MSI Plessey Check Digits 0x32 One 5 77 Transmit MSI Plessey Chec...

Страница 58: ...9F Enable 5 91 Decode Data Packet Format 0xEE Unpacketed 5 92 Host Serial Response Time out 0x9B 2 sec 5 93 Stop Bit Select 0x9D 1 5 94 Intercharacter Delay 0x6E 0 5 95 Host Character Time out 0xEF 20...

Страница 59: ...s Scan Angle Scan Angle 0xBF Normal Width 5 101 Table 5 1 Default Table Continued Parameter Parameter Number Default Page Number See Table 6 9 on page 6 25 for formatting of any parameter whose number...

Страница 60: ...5 8 SE 923 Scan Engine Integration Guide Set Default Parameter Scanning this bar code returns all parameters to the values listed in Table 5 1 on page 5 2 SET ALL DEFAULTS...

Страница 61: ...5 9 Parameter Menus Beeper Tone Parameter 0x91 To select a decode beep frequency tone scan the appropriate bar code LOW FREQUENCY 0x02 MEDIUM FREQUENCY 0x01 HIGH FREQUENCY 0x00...

Страница 62: ...to 9 9 seconds To set a Laser On Time scan the bar code below Next scan two numeric bar codes beginning on page 5 102 that correspond to the desired on time Times less than 1 0 second must have a lead...

Страница 63: ...nts from 0 0 to 9 9 seconds No aim pattern is visible when the value is 0 0 For more information on the use of this parameter see the AIM_ON command on 6 7 To set an aim duration scan the bar code bel...

Страница 64: ...r remains on after a decode attempt When in Low Power mode the scanner enters into a low power consumption mode whenever possible provided all WAKEUP signals have been released See Power Management on...

Страница 65: ...trigger pull activates the laser and decode processing The laser remains on and decode processing continues until a valid decode or the Laser On Time out is reached Continuous The laser is always on a...

Страница 66: ...5 14 SE 923 Scan Engine Integration Guide Triggering Modes cont d PULSE 0X02 CONTINUOUS 0X04 BLINKING 0X07 HOST 0X08...

Страница 67: ...ymbol twice It is programmable in 0 1 second increments from 0 0 to 9 9 seconds To set a time out between same symbol scan the bar code below Next scan two numeric bar codes beginning on page 5 102 th...

Страница 68: ...n this symbol if you want the unit to beep after a good decode BEEP AFTER GOOD DECODE 0x01 Scan this symbol if you want the unit not to beep after a good decode The beeper still operates during parame...

Страница 69: ...r 0x5E When enabled if a symbol does not decode NR is transmitted Any prefix or suffixes which have been enabled are appended around this message ENABLE NO READ 0x01 When disabled if a symbol does not...

Страница 70: ...r codes scan the bar code below Note that the Set Defaults parameter bar code will still be decoded To enable decoding of parameter bar codes either scan ENABLE PARAMETER SCANNING SET ALL DEFAULTS or...

Страница 71: ...ty levels are selected for decreasing levels of bar code quality As security levels increase the scanner s aggressiveness decreases Select the security level appropriate for your bar code quality Line...

Страница 72: ...eing decoded LINEAR SECURITY LEVEL 2 0x02 Linear Security Level 3 Code types other than the following must be successfully read twice before being decoded The following codes must be read three times...

Страница 73: ...5 21 Parameter Menus Linear Security Level 4 The following code types must be successfully read three times before being decoded LINEAR SECURITY LEVEL 4 0x04 Code Type Length All All...

Страница 74: ...er is only valid when a Linear Code Type Security Level has been enabled see page 5 19 When this parameter is enabled a bar code must be successfully scanned in both directions forward and reverse bef...

Страница 75: ...5 23 Parameter Menus UPC EAN Enable Disable UPC A Parameter 0x01 To enable or disable UPC A scan the appropriate bar code below ENABLE UPC A 0x01 DISABLE UPC A 0x00...

Страница 76: ...5 24 SE 923 Scan Engine Integration Guide Enable Disable UPC E Parameter 0x02 To enable or disable UPC E scan the appropriate bar code below ENABLE UPC E 0x01 DISABLE UPC E 0x00...

Страница 77: ...5 25 Parameter Menus Enable Disable UPC E1 Parameter 0x0C To enable or disable UPC E1 scan the appropriate bar code below ENABLE UPC E1 0x01 DISABLE UPC E1 0x00...

Страница 78: ...5 26 SE 923 Scan Engine Integration Guide Enable Disable EAN 8 Parameter 0x04 To enable or disable EAN 8 scan the appropriate bar code below ENABLE EAN 8 0x01 DISABLE EAN 8 0x00...

Страница 79: ...5 27 Parameter Menus Enable Disable EAN 13 Parameter 0x03 To enable or disable EAN 13 scan the appropriate bar code below ENABLE EAN 13 0x01 DISABLE EAN 13 0x00...

Страница 80: ...8 SE 923 Scan Engine Integration Guide Enable Disable Bookland EAN Parameter 0x53 To enable or disable EAN Bookland scan the appropriate bar code below ENABLE BOOKLAND EAN 0x01 DISABLE BOOKLAND EAN 0x...

Страница 81: ...ed and the SE 923 is presented with a UPC EAN plus supplemental symbol the UPC EAN is decoded and the supplemental characters ignored An autodiscriminate option is also available If this option is sel...

Страница 82: ...5 30 SE 923 Scan Engine Integration Guide Decode UPC EAN Supplementals cont d DECODE UPC EAN WITH SUPPLEMENTALS 0x01 IGNORE UPC EAN WITH SUPPLEMENTALS 0x00 AUTODISCRIMINATE UPC EAN SUPPLEMENTALS 0x02...

Страница 83: ...2 to 20 times Five or above is recommended when decoding a mix of UPC EAN symbols with and without supplementals and the autodiscriminate option is selected Scan the bar code below to select a decode...

Страница 84: ...tegration Guide Transmit UPC A Check Digit Parameter 0x28 Scan the appropriate bar code below to transmit the symbol with or without the UPC A check digit TRANSMIT UPC A CHECK DIGIT 0x01 DO NOT TRANSM...

Страница 85: ...Menus Transmit UPC E Check Digit Parameter 0x29 Scan the appropriate bar code below to transmit the symbol with or without the UPC E check digit TRANSMIT UPC E CHECK DIGIT 0x01 DO NOT TRANSMIT UPC E C...

Страница 86: ...gration Guide Transmit UPC E1 Check Digit Parameter 0x2A Scan the appropriate bar code below to transmit the symbol with or without the UPC E1 check digit TRANSMIT UPC E1 CHECK DIGIT 0x01 DO NOT TRANS...

Страница 87: ...d to the host device transmit system character only transmit system character and country code 0 for USA and no preamble transmitted The lead in characters are considered part of the symbol NO PREAMBL...

Страница 88: ...transmitted to the host device transmit system character only transmit system character and country code 0 for USA and no preamble transmitted The lead in characters are considered part of the symbol...

Страница 89: ...ed to the host device transmit system character only transmit system character and country code 0 for USA and no preamble transmitted The lead in characters are considered part of the symbol NO PREAMB...

Страница 90: ...data to UPC A format before transmission After conversion data follows UPC A format and is affected by UPC A programming selections e g Preamble Check Digit Scanning DO NOT CONVERT UPC E TO UPC A all...

Страница 91: ...C A format before transmission After conversion data follows UPC A format and is affected by UPC A programming selections e g Preamble Check Digit Scanning DO NOT CONVERT UPC E1 TO UPC A allows you to...

Страница 92: ...0x27 When this parameter is enabled five leading zeros are added to decoded EAN 8 symbols to make them compatible in format to EAN 13 symbols Disabling this parameter returns EAN 8 symbols to their no...

Страница 93: ...his parameter gives you the option of labeling the extended symbol as either an EAN 13 bar code or an EAN 8 bar code This affects Transmit Code ID Character and DECODE_DATA message When EAN Zero Exten...

Страница 94: ...ecessary for any given application UPC EAN Security Level 0 This is the default setting which allows the scanner to operate in its most aggressive state while providing sufficient security in decoding...

Страница 95: ...urity Level 3 If you have tried Security Level 2 and are still experiencing misdecodes select this security level Be advised selecting this option is an extreme measure against mis decoding severely o...

Страница 96: ...r 0x55 When enabled this parameter decodes UPC A UPC A with 2 supplemental characters UPC A with 5 supplemental characters and UPC A EAN128 bar codes Autodiscriminate UPC EAN Supplementals must be ena...

Страница 97: ...5 45 Parameter Menus Code 128 Enable Disable USS 128 Parameter 0x08 To enable or disable Code 128 scan the appropriate bar code below ENABLE USS 128 0x01 DISABLE USS 128 0x00...

Страница 98: ...uide Enable Disable UCC EAN 128 Parameter 0x0E To enable or disable UCC EAN 128 scan the appropriate bar code below See Appendix B Miscellaneous Code Information for details on UCC EAN 128 ENABLE UCC...

Страница 99: ...le ISBT 128 Parameter 0x54 To enable or disable ISBT 128 scan the appropriate bar code below ENABLE ISBT 128 0x01 DISABLE ISBT 128 0x00 Lengths for Code 128 No length setting is required for Code 128...

Страница 100: ...5 48 SE 923 Scan Engine Integration Guide Code 39 Enable Disable Code 39 Parameter 0x00 To enable or disable Code 39 scan the appropriate bar code below ENABLE CODE 39 0x01 DISABLE CODE 39 0x00...

Страница 101: ...D Trioptic Code 39 symbols always contain six characters Trioptic Code 39 and Code 39 Full ASCII should not be enabled simultaneously To enable or disable Trioptic Code 39 scan the appropriate bar cod...

Страница 102: ...6 Scan this symbol if you want to convert Code 39 to Code 32 CONVERT CODE 39 TO CODE 32 ENABLE 0x01 Note Code 39 must be enabled in order for this parameter to function Scan this symbol if you do not...

Страница 103: ...Prefix Parameter 0xE7 Enable this parameter to add the prefix character A to all Code 32 bar codes Convert Code 39 to Code 32 must be enabled for this parameter to function ENABLE CODE 32 PREFIX 0x01...

Страница 104: ...te Length This option allows you to decode only those codes containing a selected length For example if you select Code 39 One Discrete Length then scan 1 4 only Code 39 symbols containing 14 characte...

Страница 105: ...rs first scan Code 39 Length Within Range Then scan 0 4 1 and 2 single digit numbers must always be preceded by a leading zero Numeric bar codes begin on page 5 102 If you make an error or wish to cha...

Страница 106: ...When enabled this parameter checks the integrity of a Code 39 symbol to ensure it complies with specified algorithms Only those Code 39 symbols which include a modulo 43 check digit are decoded when t...

Страница 107: ...Parameter 0x2B Scan this symbol if you want to transmit the check digit with the data TRANSMIT CODE 39 CHECK DIGIT ENABLE 0x01 Scan this symbol if you want to transmit the data without the check digit...

Страница 108: ...odes because all but SPACE and DELETE produce visible characters Code 39 Full ASCII interprets the bar code special character preceding a Code 39 character and assigns an ASCII character value to the...

Страница 109: ...5 57 Parameter Menus Code 93 Enable Disable Code 93 Parameter 0x09 To enable or disable Code 93 scan the appropriate bar code below ENABLE CODE 93 0x01 DISABLE CODE 93 0x00...

Страница 110: ...those codes containing a selected length For example if you select Code 93 One Discrete Length then scan 1 4 only Code 93 symbols containing 14 characters are decoded Numeric bar codes begin on page...

Страница 111: ...rs first scan Code 93 Length Within Range Then scan 0 4 1 and 2 single digit numbers must always be preceded by a leading zero Numeric bar codes begin on page 5 102 If you make an error or wish to cha...

Страница 112: ...Integration Guide Interleaved 2 of 5 Enable Disable Interleaved 2 of 5 Parameter 0x06 To enable or disable Interleaved 2 of 5 scan the appropriate bar code below ENABLE INTERLEAVED 2 OF 5 0x01 DISABLE...

Страница 113: ...taining a selected length For example if you select I 2 of 5 One Discrete Length then scan 1 4 the only I 2 of 5 symbols decoded are those containing 14 characters Numeric bar codes begin on page 5 10...

Страница 114: ...5 Length Within Range Then scan 0 4 1 and 2 single digit numbers must always be preceded by a leading zero Numeric bar codes begin on page 5 102 If you make an error or wish to change your selection...

Страница 115: ...r 0x31 When enabled this parameter checks the integrity of an I 2 of 5 symbol to ensure it complies with a specified algorithm either USS Uniform Symbology Specification or OPCC Optical Product Code C...

Страница 116: ...eck Digit Parameter 0x2C Scan this symbol if you want to transmit the check digit with the data TRANSMIT I 2 of 5 CHECK DIGIT ENABLE 0x01 Scan this symbol if you want to transmit the data without the...

Страница 117: ...of 5 code into EAN 13 and transmits to the host as EAN 13 In order to accomplish this the I 2 of 5 code must be enabled one length must be set to 14 and the code must have a leading zero and a valid...

Страница 118: ...Engine Integration Guide Discrete 2 of 5 Enable Disable Discrete 2 of 5 Parameter 0x05 To enable or disable Discrete 2 of 5 scan the appropriate bar code below ENABLE DISCRETE 2 OF 5 0x01 DISABLE DISC...

Страница 119: ...those containing 14 characters Numeric bar codes begin on page 5 102 If you make an error or wish to change your selection scan the CANCEL bar code on page 5 104 D 2 of 5 ONE DISCRETE LENGTH Two Discr...

Страница 120: ...you make an error or wish to change your selection scan the CANCEL bar code on page 5 104 D 2 of 5 LENGTH WITHIN RANGE Any Length Scanning this option allows you to decode D 2 of 5 symbols containing...

Страница 121: ...5 69 Parameter Menus Codabar Enable Disable Codabar Parameter 0x07 To enable or disable Codabar scan the appropriate bar code below ENABLE CODABAR 0x01 DISABLE CODABAR 0x00...

Страница 122: ...symbols decoded are those containing 14 characters Numeric bar codes begin on page 5 102 If you make an error or wish to change your selection scan the CANCEL bar code on page 5 104 CODABAR ONE DISCR...

Страница 123: ...codes begin on page 5 102 If you make an error or wish to change your selection scan the CANCEL bar code on page 5 104 CODABAR LENGTH WITHIN RANGE Any Length Scanning this option allows you to decode...

Страница 124: ...en enabled this parameter strips the start and stop characters and inserts a space after the first fifth and tenth characters of a 14 character Codabar symbol Note Symbol length does not include start...

Страница 125: ...5 73 Parameter Menus NOTIS Editing Parameter 0x37 When enabled this parameter strips the start and stop characters from decoded Codabar symbol ENABLE NOTIS EDITING 0x01 DISABLE NOTIS EDITING 0x00...

Страница 126: ...923 Scan Engine Integration Guide MSI Plessey Enable Disable MSI Plessey Parameter 0x0B To enable or disable MSI Plessey scan the appropriate bar code below ENABLE MSI PLESSEY 0x01 DISABLE MSI PLESSE...

Страница 127: ...elected length For example if you select MSI Plessey One Discrete Length then scan 1 4 the only MSI Plessey symbols decoded are those containing 14 characters Numeric bar codes begin on page 5 102 If...

Страница 128: ...e Then scan 0 4 1 and 2 single digit numbers must always be preceded by a leading zero Numeric bar codes begin on page 5 102 If you make an error or wish to change your selection scan the CANCEL bar c...

Страница 129: ...erify the integrity of the data At least one check digit is always required Check digits are not automatically transmitted with the data ONE MSI Plessey CHECK DIGIT 0x00 If two check digits is selecte...

Страница 130: ...ck Digit Parameter 0x2E Scan this symbol if you want to transmit the check digit with the data TRANSMIT MSI Plessey CHECK DIGIT ENABLE 0x01 Scan this symbol if you want to transmit the data without th...

Страница 131: ...Digit Algorithm Parameter 0x33 When the Two MSI Plessey check digits option is selected an additional verification is required to ensure integrity Either of the two following algorithms may be selecte...

Страница 132: ...code ID character is inserted between the prefix and the decoded symbol The user may select no code ID character a Symbol Code ID character or an AIM Code ID character The Symbol Code ID characters a...

Страница 133: ...5 81 Parameter Menus Transmit Code ID Character cont d SYMBOL CODE ID CHARACTER 0x02 AIM CODE ID CHARACTER 0x01 NONE 0x00...

Страница 134: ...rresponds to key codes for various terminals See the Table B 5 on page B 7 and Numeric Bar Codes on page 5 102 If you make an error or wish to change your selection scan the CANCEL bar code on page 5...

Страница 135: ...5 83 Parameter Menus Prefix Suffix Values DATA FORMAT CANCEL...

Страница 136: ...Scan Data Transmission Format Parameter 0xEB To change the Scan Data Transmission Format scan one of the eight bar codes below or on the following pages corresponding to the desired format DATA AS IS...

Страница 137: ...5 85 Parameter Menus Scan Data Transmission Format DATA SUFFIX 1 SUFFIX 2 0x03 PREFIX DATA 0x04 PREFIX DATA SUFFIX 1 0x05 PREFIX DATA SUFFIX 2 0x06...

Страница 138: ...5 86 SE 923 Scan Engine Integration Guide Scan Data Transmission Format PREFIX DATA SUFFIX 1 SUFFIX 2 0x07...

Страница 139: ...is the number of bits of data transmitted per second The scanner s baud rate setting should match the data rate setting of the host device If not data may not reach the host device or may reach it in...

Страница 140: ...5 88 SE 923 Scan Engine Integration Guide Baud Rate cont d BAUD RATE 2400 0x04 BAUD RATE 4800 0x05 BAUD RATE 9600 0x06 BAUD RATE 19 200 0x07...

Страница 141: ...ing to host device requirements If you select ODD parity the parity bit has a value 0 or 1 based on data to ensure than an odd number of 1 bits is contained in the coded character ODD 0x00 If you sele...

Страница 142: ...Scan Engine Integration Guide Parity cont d Select MARK parity and the parity bit is always 1 MARK 0x02 Select SPACE parity and the parity bit is always 0 SPACE 0x03 If no parity is required select NO...

Страница 143: ...ect ACK NAK handshaking packets DISABLE ACK NAK 0x00 Enable ACK NAK Handshaking When this option is selected after transmitting data the scanner expects either an ACK or NAK response from the host The...

Страница 144: ...eter selects whether decoded data is transmitted in raw format unpacketed or transmitted with the packet format as defined by the serial protocol If the raw format is chosen ACK NAK handshaking is aut...

Страница 145: ...sion to send the decoder waits for the designated time out before declaring an error The delay period can range from 0 0 to 9 9 seconds in 0 1 second increments After scanning the bar code below scan...

Страница 146: ...he end of transmission of one character and prepares the receiving device for the next character in the serial data stream The number of stop bits selected one or two depends on the number the receivi...

Страница 147: ...em time to service its receiver and perform other tasks between characters The delay period can range from no delay to 99 msec in 1 msec increments After scanning the bar code below scan two bar codes...

Страница 148: ...by the host before discarding the received data and declaring an error The time out is set in 0 01 second increments from 0 01 seconds to 0 99 seconds After scanning the bar code below scan two bar co...

Страница 149: ...nning the appropriate bar codes Parameter number format for these parameters follows those shown in Table 6 9 on page 6 25 for parameters numbered 256 or higher Table 5 2 Event Codes Event Class Event...

Страница 150: ...gine Integration Guide Decode Event Parameter 0xF0 0x00 When enabled the decoder generates a message to the host whenever a bar code is successfully decoded When disabled no notification is sent ENABL...

Страница 151: ...5 99 Parameter Menus Boot Up Event Parameter 0xF0 0x02 When enabled the decoder generates a message to the host whenever power is applied When disabled no notification is sent ENABLE 0x01 DISABLE 0x00...

Страница 152: ...tion Guide Parameter Event Parameter 0xF0 0x03 When enabled the decoder generates a message to the host when one of the events specified in Table 5 2 on page 5 97 occurs When disabled no notification...

Страница 153: ...options belowto adjust the visible scan width in scanners that support laser clipping see Table 6 10 on page 6 27 The scan width is reduced by software control Laser Clipping Selection No Clipping 0x6...

Страница 154: ...5 102 SE 923 Scan Engine Integration Guide Numeric Bar Codes For parameters requiring specific numeric values scan the appropriately numbered bar code s 0 1 2 3...

Страница 155: ...5 103 Parameter Menus Numeric Bar Codes cont d 4 5 6 7...

Страница 156: ...5 104 SE 923 Scan Engine Integration Guide Numeric Bar Codes cont d 8 9 Cancel If you make an error or wish to change your selection scan the bar code below CANCEL...

Страница 157: ...erial Interface Specification SIF is described in Appendix A The host and the decoder exchange messages in packets A packet is a collection of bytes framed by the proper SSI protocol formatting bytes...

Страница 158: ...SSI Opcodes supported by the SE 923 It identifies the SSI partner allowed to send a message of each type The host transmits Opcodes designated type H The decoder transmits type D Opcodes and either p...

Страница 159: ...vent the operator from scanning bar codes 6 29 SCAN_ENABLE H 0xE9 Permit bar code scanning 6 30 SLEEP H 0xEB Request to place the decoder into low power 6 31 START_DECODE H 0xE4 Tell decoder to attemp...

Страница 160: ...sum bytes Maximum value is 0xFF Opcode 1 Byte See Table 6 1 for details Identifies the type of packet data being sent Message Source 1 Byte 0 Decoder 04 Host Identifies where the message is coming fr...

Страница 161: ...decoders that support an aim pattern see Table 6 10 on page 6 27 Length Opcode Message Source Status Data Checksum 0x04 0xC4 0x04 Field Name Format Size Description Length Length of message not inclu...

Страница 162: ...Guide Decoder Requirements The decoder turns off the aim pattern and responds with a CMD_ACK if ACK NAK handshaking is enabled If the aim pattern is not supported the decoder responds with NAK_DENIED...

Страница 163: ...he decoder responds with NAK_DENIED if ACK NAK handshaking is enabled Length Opcode Message Source Status Data Checksum 0x04 0xC5 0x04 Field Name Format Size Description Length Length of message not i...

Страница 164: ...uence Action performed Aim duration parameters AIM_ON Turn on the aiming pattern indefinitely aim duration 0 AIM_OFF Turn off the aiming pattern aim duration 0 AIM_ON START_DECODE Turn on the aiming p...

Страница 165: ...cified duration Length Opcode Message Source Status Beep Code Checksum 0x05 0xE6 0x04 Field Name Format Size Description Length Length of message not including checksum 1 Byte Length Field Opcode 0xE6...

Страница 166: ...NAK_DENIED Table 6 4 Beep Code Definitions Beep Code Duration Pitch Number of Beeps Beep Code Duration Pitch Number of Beeps 0x00 Short High 1 0x0D Long High 4 0x01 Short High 2 0x0E Long High 5 0x02...

Страница 167: ...bled We recommend however it be left enabled It is not necessary to respond to a valid ACK or NAK message Length Opcode Message Source Status Data Checksum 0x04 0xD0 Field Name Format Size Description...

Страница 168: ...t it should resend the message with the retransmit status bit set before declaring a failure The host should limit the number of retries Decoder Requirements A CMD_ACK or response data must be sent by...

Страница 169: ...pe Message Source 0 Decoder 4 Host 1 Byte Identifies where the message is coming from Status Bit 0 Retransmit Bit 1 7 unused 1 Byte Identifies the transmission status Unused bits must be set to 0 Caus...

Страница 170: ...s not been sent successfully at that time the decoder declares a transmit error and issues transmit error beeps LO LO LO LO Table 6 5 Decoder Supported NAK Types NAK Type Meaning Receiver Action NAK_R...

Страница 171: ...Size Description Length Length of message not including checksum 1 Byte Length Field Opcode 0xF3 1 Byte Identifies this Opcode type Message Source 0 Decoder 1 Byte Identifies where the message is com...

Страница 172: ...arameter The host responds to this message with a CMD_ACK if ACK NAK handshaking is enabled Table 6 6 Supported Code Types Not Applicable 0x00 EAN 8 with 2 Supps 0x4A Code 39 0x01 EAN 8 with 5 Supps 0...

Страница 173: ...e this message when a selected event occurs Length Opcode Message Source Status Event Code Checksum 0x05 0xF6 0x00 Field Name Format Size Description Length Length of message not including checksum 1...

Страница 174: ...1 Field Name Format Size Description Length Length of message not including checksum 1 Byte Length Field Opcode 0xE8 1 Byte Identifies this Opcode type Message Source 4 Host 1 Byte Identifies where th...

Страница 175: ...ame Format Size Description Length Length of message not including checksum 1 Byte Length Field Opcode 0xE7 1 Byte Identifies this Opcode type Message Source 4 Host 1 Byte Identifies where the message...

Страница 176: ...esets all its parameters to the factory default values The behavior is the same as scanning a SET DEFAULTS bar code Length Opcode Message Source Status Checksum 0x04 0xC8 0x04 Field Name Format Size D...

Страница 177: ...ue of all the parameters it sends a special param_num called ALL_PARAMS 0xFE in the first position of the Request_Data field Note The decoder s response to this command is PARAM_SEND not ACK Depending...

Страница 178: ...decoder Table 6 7 To find out what parameters are supported send an 0xFE request all parameters The response to this is a PARAM_SEND which contains all the supported parameters and their values When...

Страница 179: ...D 93 09 C6 00 00 FF 01 00 9C 07 FD 8E 4 05 C7 04 00 04 FF 2C 05 C6 00 00 FF FE 36 ALL 3 times 07 C7 04 00 FE FE FE FC 34 0D C6 00 00 FF 01 00 02 01 9C 07 E6 63 FC 3E 1 3 times 07 C7 04 00 01 01 01 FF...

Страница 180: ...um 1 Byte Length Field Opcode 0xC6 1 Byte Identifies this Opcode type Message Source 0 Decoder 4 Host 1 Byte Identifies where the message is coming from Status Bit 0 Retransmit Bits 1 2 Unused Bit 3 C...

Страница 181: ...es a PARAM_SEND it interprets and stores the parameters then ACKs the command if ACK NAK handshaking is enabled These parameters are stored permanently only if the Change Type bit 3 of the Status byte...

Страница 182: ...release name of the software Length Opcode Message Source Status Revision Checksum 0xA4 0x00 Field Name Format Size Description Length Length of message not including checksum 1 Byte Length Field Opco...

Страница 183: ...s Engine Code Engine Description Aiming Pattern Blinking Trigger Laser Clipping Narrow Wide 0x00 SE 1200 Standard No Yes No No 0x01 SE 1200LR Long Range Yes No No No 0x02 SE 1200WA Wide Angle No Yes N...

Страница 184: ...ing to the host See REPLY_REVISION for format Length Opcode Message Source Status Data Checksum 0x04 0xA3 0x04 Field Name Format Size Description Length Length of message not including checksum 1 Byte...

Страница 185: ...requests until a SCAN_ENABLE command is received Length Opcode Message Source Status Data Checksum 0x04 0xEA 0x04 Field Name Format Size Description Length Length of message not including checksum 1 B...

Страница 186: ...oding upon receipt of this command Note At initial power up the decoder should assume SCAN_ENABLED Length Opcode Message Source Status Data Checksum 0x04 0xE9 0x04 Field Name Format Size Description L...

Страница 187: ...knowledging the command as it may be busy processing data at the time Decoder Requirements None Length Opcode Message Source Status Data Checksum 0x04 0xEB 0x04 Field Name Format Size Description Leng...

Страница 188: ...st can use this command instead of a trigger pull Decoder Requirements None Length Opcode Message Source Status Data Checksum 0x04 0xE4 0x04 Field Name Format Size Description Length Length of message...

Страница 189: ...de Message Source Status Data Checksum 0x04 0xE5 0x04 Field Name Format Size Description Length Length of message not including checksum 1 Byte Length Field Opcode 0xE5 1 Byte Identifies this Opcode t...

Страница 190: ...e mechanism to wake up a decoder in this manner also works if characters other than WAKEUP are sent to the decoder There is however no guarantee that these commands are interpreted correctly upon powe...

Страница 191: ...t resends the message The decoder receives the message successfully responds with CMD_ACK and implements parameter changes Transfer of Decode Data The Decode Data Packet Format parameter controls how...

Страница 192: ...K NAK Enabled and Unpacketed ASCII Data Even though the ACK NAK handshaking is enabled no handshaking occurs because the handshaking applies only to packeted data In this example the packeted_decode p...

Страница 193: ...ven though packeted_decode is enabled because the ACK NAK handshaking parameter is disabled ACK NAK Disabled and Unpacketed ASCII Data Data captured by the decoder is sent to the host Decoder Data is...

Страница 194: ...e out The Serial Response Time out parameter is used to determine how long to wait for a handshaking response before trying again or aborting any further attempts Both the host and decoder should use...

Страница 195: ...ember When Using SSI Communication If hardware handshaking is not being used messages should be spaced sufficiently apart and the host must not communicate with the SE 923 if the SE 923 is sending If...

Страница 196: ...6 40 SE 923 Scan Engine Integration Guide...

Страница 197: ...change generates errors under certain conditions However SIF does not specify the specific actions to take to correct the error Instead this is left to the software hardware layer above SIF Terms and...

Страница 198: ...d two are for transmitting and receiving serial data Many communications packages do not properly use the handshaking lines for half duplex communications So if you are using a PC communications packa...

Страница 199: ...ble the decoder may transmit The decoder is responsible for any programmed intercharacter delays retrying if the host communicates during decoder transmission Table A 2 Host Signal Lines HOST RXD Seri...

Страница 200: ...serial response time out WHILE host is still requesting to send DO IF character was received OR timed out THEN RETURN FALSE abort transmit END END disable receiving remove host s permission to send E...

Страница 201: ...ata If the host is transmitting data the maximum character to character delay allowed is determined by the Host Intercharacter Time out parameter The decoder may discard any received data if the host...

Страница 202: ...eceived message and prepare response END RETURN The Host This section describes the requirements specific to the host Transmitting Data The host only transmits after receiving permission from the deco...

Страница 203: ...up serial response time out WHILE permission has not been granted DO IF serial response time out expired THEN remove request to send transmit failed RETURN FALSE calling function may retry transmit E...

Страница 204: ...ast character DO IF host can receive right now THEN deassert host RTS in case host was holding off decoder IF a character was received THEN reset intercharacter time out END ELSE IF host wants to send...

Страница 205: ...re shown in Figure A 2 through Figure A 9 Figure A 2 Basic Decoder Initiated Transaction TXD Host RXD RXD Host TXD RTS Host CTS CTS Host RTS 1 2 3 4 5 6 1 Decoder data 2 Host requests to send 3 Decode...

Страница 206: ...gure A 3 Basic Host Initiated Transaction TXD Host RXD RXD Host TXD RTS Host CTS CTS Host RTS 1 2 3 4 5 6 1 Host requests to send 2 Decoder grants permission 3 BEEP command sent 4 Host removes request...

Страница 207: ...transmit 2 Host asserts RTS causing transmission pause 3 Decoder grants permission for host to send 4 Host removes request without sending 5 Decoder removes permission 6 Decoder resumes transmission...

Страница 208: ...Nulls Decoder in Continuous Power Mode TXD Host RXD RXD Host TXD RTS Host CTS CTS Host RTS 1 2 3 4 6 1 Host requests permission to send 2 Decoder grants permission 3 Host sends 3 nulls then BEEP comma...

Страница 209: ...sts permission to send 2 Decoder grants permission 3 Host sends 1 2 BEEP command 4 Host removes request ignored by decoder until transmit complete or timed out 5 Host requests again ignored by decoder...

Страница 210: ...st RXD RXD Host TXD RTS Host CTS CTS Host RTS 1 2 3 4 5 7 1 Host requests permission to send 2 Decoder grants permission 3 Host sends 2 characters of message 4 Host removes request 5 RTS remains low b...

Страница 211: ...BEEP Commands Back to Back TXD Host RXD RXD Host TXD RTS Host CTS CTS Host RTS 1 2 3 4 5 6 1 Host requests permission to send 2 Decoder grants permission 3 Host sends 2 BEEP commands instead of 1 4 Ho...

Страница 212: ...5 7 1 Decoder starts to transmit 2 Host requests permission 3 Decoder grants permission 4 Host causes abort by sending BEEP 5 Host removes request 6 Decoder removes permission 7 Decoder ACKs 8 Decoder...

Страница 213: ...ate fields When EAN 128 symbols are read they are transmitted after special formatting strips off the leading FNC 1 character and replaces other FNC 1 characters with the ASCII 29 GS control character...

Страница 214: ...ples FNC1 ABCDFNC1 E are read as ABCD29 E AFNC1 BCDFNC1 E are read as ABCD29 E FNC1FNC1 ABCDFNC1 E are read as ABCD29 E ABCDFNC1 E cannot be read ABCDE cannot be read Enable Disable Read only symbols...

Страница 215: ...r string cm where Flag Character ASCII 93 c Code Character see Table B 2 m Modifier Character see Table B 3 Table B 2 Code Characters Code Character Code Type A Code 39 C Code 128 E UPC EAN F Codabar...

Страница 216: ...hecked one check character 7 Reader has performed Full ASCII character conversion and checked and stripped check character Example A Full ASCII bar code with check character W A I MI DW is transmitted...

Страница 217: ...as F04123 Code 93 0 No options specified at this time Always transmit 0 Example A Code 93 bar code 012345678905 is transmitted as G0012345678905 MSI Plessey 0 Single check digit checked 1 Two check di...

Страница 218: ...ode type See the individual code types in Chapter 5 for the L1 and L2 parameter numbers Depending on the selected option the scanner will decode One discrete length bar code Two discrete length bar co...

Страница 219: ...ed ASCII value from Table B 5 Table B 4 Setting Variable Code Lengths Code length option L1 value L2 value One discrete length will be decoded Discrete length to decode 0x00 Two discrete lengths will...

Страница 220: ...1h Q CTRL Q 1018 12h R CTRL R 1019 13h S CTRL S 1020 14h T CTRL T 1021 15h U CTRL U 1022 16h V CTRL V 1023 17h W CTRL W 1024 18h X CTRL X 1025 19h Y CTRL Y 1026 1Ah Z CTRL Z 1027 1Bh A CTRL 1028 1Ch B...

Страница 221: ...41 29h I 1042 2Ah J 1043 2Bh K 1044 2Ch L 1045 2Dh 1046 2Eh 1047 2Fh 1048 30h 0 0 1049 31h 1 1 1050 32h 2 2 1051 33h 3 3 1052 34h 4 4 1053 35h 5 5 1054 36h 6 6 1055 37h 7 7 1056 38h 8 8 1057 39h 9 9 1...

Страница 222: ...B B 1067 43h C C 1068 44h D D 1069 45h E E 1070 46h F F 1071 47h G G 1072 48h H H 1073 49h I I 1074 4Ah J J 1075 4Bh K K 1076 4Ch L L 1077 4Dh M M 1078 4Eh N N 1079 4Fh O O 1080 50h P P 1081 51h Q Q...

Страница 223: ...1091 5Bh K 1092 5Ch L 1093 5Dh M 1094 5Eh N 1095 5Fh O _ 1096 60h W 1097 61h A a 1098 62h B b 1099 63h C c 1100 64h D d 1101 65h E e 1102 66h F f 1103 67h G g 1104 68h H h 1105 69h I i 1106 6Ah J j 11...

Страница 224: ...dized Therefore they are not included in the table 1109 6Dh M m 1110 6Eh N n 1111 6Fh O o 1112 70h P p 1113 71h Q q 1114 72h R r 1115 73h S s 1116 74h T t 1117 75h U u 1118 76h V v 1119 77h W w 1120 7...

Страница 225: ...de symbol Bar Code Density The number of characters represented per unit of measurement e g characters per inch Bar Height The dimension of a bar measured perpendicular to the bar width Bar Width Thic...

Страница 226: ...ls are not necessary Eye protection for CDRH Class 2 devices is normally afforded by aversion responses including the blink reflex Character A pattern of bars and spaces which either directly represen...

Страница 227: ...ul decode Decode To recognize a bar code symbology e g UPC EAN and then analyze the content of the specific bar code scanned Decode Algorithm A decoding scheme that converts pulse widths into data rep...

Страница 228: ...may not emit more than 1 milliwatt average radiant power For this scan engine additional software controls are not necessary Eye protection for IEC Class 2 devices is normally afforded by aversion res...

Страница 229: ...h portable devices for inventory purposes Nominal The exact or ideal intended value for a specified parameter Tolerances are specified as positive and negative deviations from this value Nominal Size...

Страница 230: ...al detector output into a digitized bar pattern Scanning Mode The scanner is energized programmed and ready to read a bar code Scanning Sequence A method of programming or configuring parameters for a...

Страница 231: ...he structural rules and conventions for representing data within a particular bar code type e g UPC EAN Code 39 Tolerance Allowable deviation from the nominal bar or space width TxD Transmitted data U...

Страница 232: ...Glossary 8 SE 923 Scan Engine Integration Guide...

Страница 233: ...meter event 5 100 interleaved 2 of 5 5 60 check digit verification 5 63 convert I 2 of 5 to EAN 13 5 65 lengths 5 61 transmit check digit 5 64 ISBT 128 enable disable 5 47 laser on time 5 10 linear co...

Страница 234: ...iloxane 2 10 communications summary 6 38 ACK NAK 6 38 errors 6 39 number of data bits 6 38 retries 6 38 RTS CTS lines 6 38 serial response time out 6 38 considerations 2 5 environment 2 6 ESD 2 5 grou...

Страница 235: ...on 6 19 param defaults 6 20 param request 6 21 param send 6 24 reply revision 6 26 scan disable 6 29 scan enable 6 30 sleep 6 31 start decode 6 32 stop decode 6 33 wakeup 6 34 SSI transactions 6 34 ge...

Страница 236: ...Index 4 SE 923 Scan Engine Integration Guide...

Страница 237: ...ed product support please call the appropriate customer support number provided Unfortunately we cannot provide customer support at the fax number above User s Manual Title please include revision lev...

Страница 238: ......

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