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Ametek Land SYSTEM 4 User Manual

Landmark graphic processor
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Landmark Graphic Processor
Serial Communications
User Guide
Issue 9
22 November 2016
Publication Nº 198.010
Language: English
© Land Instruments International, 2016

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  • Page 1 Landmark Graphic Processor Serial Communications User Guide Issue 9 22 November 2016 Publication Nº 198.010 Language: English © Land Instruments International, 2016...
  • Page 2 IMPORTANT INFORMATION - PLEASE READ Health and Safety Information Read all of the instructions in this booklet - including all the WARNINGS and CAUTIONS - before using this product. If there is any instruction which you do not understand, DO NOT USE THE PRODUCT.
  • Page 3 Web: www.landinst.com For further details on all AMETEK Land offices, distributors and representatives, please visit our websites. Return of Damaged Goods IMPORTANT If any item has been damaged in transit, this should be reported to the carrier and to the supplier immediately.
  • Page 4 Landmark Graphic Signal Processor User Guide Serial Communications...

  • Page 5: Table Of Contents

    User Guide Landmark Graphic Signal Processor Serial Communications Contents Introduction Installation Instructions Setting up the Serial Communications Port Serial communications data formats Interconnections RS232C connections RS485 connections Appendix A - Serial Port Parameters Standard Serial Communications Card Parameters AET (Aluminium Extrusion Thermometer) Card Parameters AQT (Aluminium Quench Thermometer) Card Parameters AST (Aluminium Strip Thermometer) Card Parameters GST (Galvanneal Strip Thermometer) Card Parameters...
  • Page 6 Landmark Graphic Signal Processor User Guide Serial Communications...

  • Page 7: Introduction

    User Guide Landmark Graphic Signal Processor Serial Communications Introduction The Landmark Graphic serial communications option allows communication between the processor and either a terminal or a computer. This facility can be fitted during manufacture or purchased as an upgrade kit for an existing processor. Two types of serial communications are supported. RS232C - compatible with either terminals or computers, which allows communications with a single processor only. RS485 - compatible with all computers with an RS485 serial interface. The serial option is user configurable, via the front panel of the Landmark Graphic processor, for the settings shown in Table 1. Refer to Section 3. Mode selection: RS232C or RS485 Unit address:...
  • Page 8 Landmark Graphic Signal Processor User Guide Serial Communications LANDMARK GRAPHIC ® LMG 1 1 1994 S/NO. 123/456/78 MADE IN ENGLAND RS 485 200 - 240V 100 - 120V RS 232C 35VA MAX. T 1A 250V 50-60Hz Fig. 1 Location of screws on back panel S4970076 Notch in EPROM at this end EPROM locking lug Fig.

  • Page 9: Installation Instructions

    User Guide Landmark Graphic Signal Processor Serial Communications Installation Instructions CAUTION Disconnect the processor from the a.c. mains power supply before removing the rear panel. Observe precautions for handling electrostatic discharge sensitive devices. Refer to Fig. 1. Unscrew the four screws (A). Retain the screws in a safe place for re-assembly. Remove the rear panel to reveal the I/O cards in the processor. NOTE If your kit has an EPROM in it, follow steps 3 to 11.
  • Page 10 Landmark Graphic Signal Processor User Guide Serial Communications CAUTION Observe precautions for handling electrostatic discharge sensitive devices. 12) Remove the serial communications card from the conductive packaging. 13) Insert the serial communications card into the slot in the processor nearest to the power supply. 14) Select the appropriate new rear panel from the kit. 15) Remove the relevant blanking plates from the rear panel.

  • Page 11: Setting Up The Serial Communications Port

    User Guide Landmark Graphic Signal Processor Serial Communications Setting up the Serial Communications Port For a full description of the operation of the processor, refer to the Landmark Graphic Processor User Guide. Connect the Landmark Graphic Processor to a suitable power supply and switch it on. Press the (ENTER) key on the front panel. The Main Menu will be displayed. Refer to Fig. 3. Use the (UP) and/or (DOWN) keys to change the displayed code...
  • Page 12 Landmark Graphic Signal Processor User Guide Serial Communications Fig. 4 Main Configuration Menu LMG_010004 Fig. 5 Serial Card Configuration Menu LMG_010005 Page 6...
  • Page 13 User Guide Landmark Graphic Signal Processor Serial Communications 29) Press the ENTER key to select the Parity value. 30) Use the UP and/or DOWN keys to select the required parity to match the computer or terminal which is to be connected to the processor. 31) Press the ENTER key. 32) Use the UP and/or DOWN keys to select the Stop bit(s) option. 33) Press the ENTER key to select the Stop bit(s) value. 34) Use the UP and/or DOWN keys to select the required number of stop bits to match the computer or terminal which is to be connected to the processor. 35) Press the ENTER key. 36) Select the <<RETURN option from the sub-menu. 37) Press the ENTER key. The Serial Card Configuration Menu is displayed.

  • Page 14: Serial Communications Data Formats

    Landmark Graphic Signal Processor User Guide Serial Communications 3.1 Serial communications data formats NOTE In order to communicate with a Landmark Graphic Processor, the appropriate protocol, as detailed in this section must be used. 3.1.1 RS232C request data mode NOTES In RS232C mode the characters transmitted by the Computer/Terminal are echoed back by the Landmark Graphic Processor. The echoing of characters can be stopped by sending the EKO command to the serial card. Computer/Terminal Landmark Graphic Channel letter # denotes System...
  • Page 15 User Guide Landmark Graphic Signal Processor Serial Communications 3.1.2 RS232C download data mode Computer/Terminal Landmark Graphic # denotes System Channel letter Card Parameter Parameter value being modified (ASCII) Space New parameter value (ASCII) (Optional) If the * character is received at any time, the entry is invalid and is not implemented NOTE The optional LF can be sent or not - it will be ignored/deleted by the firmware.
  • Page 16 Landmark Graphic Signal Processor User Guide Serial Communications To read label of channel ‘C’ ... Type at the terminal RCLBL [enter] breakdown Read mode Channel C LBL Command to work on the label [enter] Press terminal enter key See Note 1 reply CHC XYZ Channel C label To change label of channel ‘D’ ... Type at the terminal SDLBL Mill #1 [return] breakdown...
  • Page 17 User Guide Landmark Graphic Signal Processor Serial Communications 3.1.4 RS485 request data mode Computer/Terminal Landmark Graphic STX (0x02) Unit ID (0x??) Channel letter (ASCII) Parameter value being modified (ASCII) ETX (0x03) STX (0x02) Unit ID (0x??) Channel letter (ASCII) New parameter value (ASCII) UNITS...
  • Page 18 Landmark Graphic Signal Processor User Guide Serial Communications 3.1.6 RS485 examples The RS485 communications is designed primarily for use by a computer running a customised communications package. To read the temperature from channel ‘A’ ... Type at the terminal [STX][addr]RATMP[ETX] breakdown STX Binary 0x02, start of text framing character addr Binary address of processor to be interrogated Read mode Channel A Command to report the temperature ETX Binary 0x03, end of text framing character reply...
  • Page 19 User Guide Landmark Graphic Signal Processor Serial Communications To read label of channel ‘C’ ... Type at the terminal [STX][addr]RCLBL[ETX] breakdown STX Binary 0x02, start of text framing character addr Binary address of processor to be interrogated Read mode Channel C LBL Command to work on the label ETX Binary 0x03, end of text framing character reply [STX][addr]CCh C XYZ[EXT] breakdown STX Binary 0x02, start of text framing character addr Binary address of replying processor Channel ident of replying processor Ch C Label header...

  • Page 20: Interconnections

    Landmark Graphic Signal Processor User Guide Serial Communications Interconnections 4.1 RS232C connections The signals available on the RS232C 25-way D type connector, on the rear panel of the Landmark Graphic Processor, are shown in Fig. 10. Screen RS 232C Fig. 10 RS232C interface connector on rear panel of processor 010010 IBM PC Landmark Graphic (or compatible) 25 way...

  • Page 21: Rs485 Connections

    User Guide Landmark Graphic Signal Processor Serial Communications 4.2 RS485 connections The signals available on the RS485 connector, on the rear panel of the Landmark Graphic Processor, are shown in Fig. 12. RxD (+) RxD (-) Screen TxD (-) TxD (+) RS 485 Fig. 12 RS485 interface connector on rear panel of processor 010012 To next unit 120Ω...
  • Page 22 Landmark Graphic Signal Processor User Guide Serial Communications Page 16...

  • Page 23: Appendix A - Serial Port Parameters

    User Guide Landmark Graphic Signal Processor Serial Communications Appendix A - Serial Port Parameters This appendix lists only those Landmark Graphic Processor parameters and ranges accepted that can be modified by the user using the serial communications port. The following parameters are covered in this section: • Standard serial communications card • AET (Aluminium Extrusion Thermometer) card •...
  • Page 24 Landmark Graphic Signal Processor User Guide Serial Communications Key to Parameters Sensor-dependent Card-dependent Mnemonic This is the 3-character code used by the LMG to recognise parameters This is the minimum parameter value that the LMG will accept in ASCII characters This is the maximum parameter value that the LMG will accept in ASCII characters Increment This is the valid increment of each parameter value recognised by the LMG...

  • Page 25: A1 Standard Serial Communications Card Parameters

    User Guide Landmark Graphic Signal Processor Serial Communications A1 Standard Serial Communications Card Parameters Range Name Menu title text Default Comments Increment Thermometer type Read only Emissivity 1000 1000 e.g. Use of correct 0.200 = 200 parameter is determined by Non-greyness 1250 1000 e.g.
  • Page 26 Landmark Graphic Signal Processor User Guide Serial Communications Range Name Menu title text Default Comments Increment Averager response 0 = 0.00 time 1 = 0.05 2 = 0.10 3 = 0.15 4 = 0.25 5 = 0.50 6 = 1.0 7 = 2.0 8 = 4.0 9 = 8.0...
  • Page 27 User Guide Landmark Graphic Signal Processor Serial Communications Range Name Menu title text Default Comments Increment Timespan 0 = 3 mins 5 to 7 not (Deviation and 1 = 12 mins allocated (give Line chart) 2 = 30 mins max if selected) 3 = 1.5 hrs 4 = 4.5 hrs Channel label...

  • Page 28: A2 Aet (Aluminium Extrusion Thermometer) Card Parameters

    Landmark Graphic Signal Processor User Guide Serial Communications A2 AET (Aluminium Extrusion Thermometer) Card Parameters Range Comments Name Menu title text Default Increment Units Menu value text Thermometer Type SD string SD string Read only Time Function Averager Response Alarm 1 Mode 0 = low alarm 1 = high alarm Alarm 1 Level...
  • Page 29 User Guide Landmark Graphic Signal Processor Serial Communications Range Comments Name Menu title text Default Increment Units Menu value text H4 Parameter Value H5 Parameter Value H6 Parameter Value H7 Parameter Value Brightness Read only Temperature 1 brightness temperature Brightness Read only Temperature 2 brightness temperature Algorithm Mode...

  • Page 30: A3 Aqt (Aluminium Quench Thermometer) Card Parameters

    Landmark Graphic Signal Processor User Guide Serial Communications A3 AQT (Aluminium Quench Thermometer) Card Parameters Range Comments Name Menu title text Default Increment Units Menu value text Thermometer Type SD string SD string Read only Time Function Averager Response Alarm 1 Mode 0 = low alarm 1 = high alarm Alarm 1 Level...
  • Page 31 User Guide Landmark Graphic Signal Processor Serial Communications Range Comments Name Menu title text Default Increment Units Menu value text H4 Parameter Value H5 Parameter Value H6 Parameter Value H7 Parameter Value Brightness Read only Temperature 1 brightness temperature Brightness Read only Temperature 2 brightness temperature Algorithm Mode...

  • Page 32: A4 Ast (Aluminium Strip Thermometer) Card Parameters

    Landmark Graphic Signal Processor User Guide Serial Communications A4 AST (Aluminium Strip Thermometer) Card Parameters Range Comments Name Menu title text Default Increment Units Menu value text Thermometer Type SD string SD string Read only Time Function Averager Response Alarm 1 Mode 0 = low alarm 1 = high alarm Alarm 1 Level...
  • Page 33 User Guide Landmark Graphic Signal Processor Serial Communications Range Comments Name Menu title text Default Increment Units Menu value text H4 Parameter 1200 Value H5 Parameter 1000 Value H6 Parameter 2050 2150 2100 Value H7 Parameter 2350 2450 2400 Value Brightness Read only Temperature 1 brightness temperature Brightness...

  • Page 34: A5 Gst (Galvanneal Strip Thermometer) Card Parameters

    Landmark Graphic Signal Processor User Guide Serial Communications A5 GST (Galvanneal Strip Thermometer) Card Parameters Range Comments Name Menu title text Default Increment Units Menu value text Thermometer Type SD string SD string Read only Time Function Averager Response Alarm 1 Mode 0 = low alarm 1 = high alarm Alarm 1 Level...
  • Page 35 User Guide Landmark Graphic Signal Processor Serial Communications Range Comments Name Menu title text Default Increment Units Menu value text H4 Parameter Value H5 Parameter 1000 Value H6 Parameter 2060 2120 2100 Value H7 Parameter 2370 2430 2400 Value Brightness Read only Temperature 1 brightness temperature Brightness...

  • Page 36: A6 Rp4 (Ratio Thermometer) Card Parameters

    Landmark Graphic Signal Processor User Guide Serial Communications A6 RP4 (Ratio Thermometer) Card Parameters Range Comments Name Menu title text Default Increment Units Menu value text Thermometer Type SD string SD string Read only Emissivity 1000 1000 e.g. 50 = 0.050 1000 = 1.000 Non Greyness 1250 1000...
  • Page 37 User Guide Landmark Graphic Signal Processor Serial Communications Range Comments Name Menu title text Default Increment Units Menu value text Deviation Chart SD span SD span Odd numbers Span rounded down Linear Chart Tmin >SD min <SD max SD min Value -200 Linear Chart Tmax >SD min <SD max SD max Value +200...

  • Page 38: A7 Maths Card Parameters (Common Parameters)

    Landmark Graphic Signal Processor User Guide Serial Communications A7 Maths Card Parameters (Common Parameters) Range Comments Name Menu title text Default Increment Units Menu value text Maths Function 1 Type Maths function 1 Allocation Maths Function 1 Dependent upon Tmax channel allocation Maths Function 1 Dependent upon Tmin...

  • Page 39: A8 Standard Software-Specific Parameters Not Available In Adp Software

    User Guide Landmark Graphic Signal Processor Serial Communications A8 Standard software-specific parameters not available in ADP software Range Comments Name Menu title text Default Increment Units Menu value text F1 emiss value for BG 1000 1000 300 = 0.300 comp 1000 = 1.000 F1 offset correction Offset factor for...

  • Page 40: A9 Adp Software-Specific Parameters Not Available In Standard Software

    Landmark Graphic Signal Processor User Guide Serial Communications A9 ADP software-specific parameters not available in standard software Range Comments Name Menu title text Default Increment Units Menu value text F1 distance value 2000 ft or 2000 = 200 F1 speed value 9999 ft or 9999 = 99.99...

  • Page 41: Appendix B - System Communications Timing Data

    User Guide Landmark Graphic Signal Processor Serial Communications Appendix B - System Communications Timing Data Parameter update rate All parameters available to the user are updated on a 500ms cycle. NOTE Heavy use of the serial port will interfere with the 500ms update and may stop parameters being refreshed. It is recommended that at least 150ms of any 500ms period be left free to allow for parameter update. Command response time This is the time taken between the end of the last character of a command and the beginning of the first character of the serial cards reply. It is the time taken by the serial card to process a command. This time is independent of the selected baud rate. Some variability is present due to the following: the processing required by a particular command the time taken by processor housekeeping All commands are serviced within 30ms. Command reply time This is the time taken by the serial cards reply. It is directly related to the selected baud rate and the number of characters in the reply.

  • Page 42: Cable Lengths

    Landmark Graphic Signal Processor User Guide Serial Communications For RS485 (the inter command time is longer due to protocol overhead), assuming a reply at 20 characters maximum; Baud Rate Inter Command Time 9600 54ms 4800 78ms 2400 126ms 1200 222ms 413ms 797ms Cable lengths...
  • Page 43 Instruments International Ltd. factory in Dronfield, UK. 36 MONTHS WARRANTY Building upon the reputation for reliability and longevity that System 4 and UNO thermometers have earned, Land are delighted to be able to provide our customers with an industry-leading 36 month warranty for the following products:- •...
  • Page 44 PRODUCT WARRANTY EXCLUSIONS FROM WARRANTY It should be noted that costs associated with calibration checks which may be requested during the warranty period are not covered within the warranty. Land reserve the right to charge for service/calibration checks undertaken during the warranty period if the cause is deemed to fall outside the terms of the warranty.

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