Ametek Land LANCOM 4 User manual

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

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.
Safety Signs
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or
personal injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderate injury to the user or users, or result in damage to the product or to property.
NOTE
Indicates a potentially hazardous situation which, if not avoided, could result in damage or the loss of
data.
Signs and Symbols used on equipment and Documentation
Caution, risk of electric shock.
Caution, attention to possibility of risk of damage to the product, process or surroundings. Refer
to instruction manual.
Caution, hot surface.
Protective Conductor Terminal.
Observe precautions for handling electrostatic discharge sensitive devices.
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Copyright © 2016 Land Instruments International.
MARCOM0311, Issue 7, 01 November 2016
Approvals apply in India

Landmark Graphic Signal Processor
Serial Communications
User Guide

User Guide Landmark Graphic Signal Processor
Serial Communications
Contents
Contents
1 Introduction 1
2 Installation Instructions 3
3 Setting up the Serial Communications Port 5
3.1 Serial communications data formats 8
4 Interconnections 14
4.1 RS232C connections 14
4.2 RS485 connections 15
Appendix A - Serial Port Parameters
A1 Standard Serial Communications Card Parameters
A2 AET (Aluminium Extrusion Thermometer) Card Parameters
A3 AQT (Aluminium Quench Thermometer) Card Parameters
A4 AST (Aluminium Strip Thermometer) Card Parameters
A5 GST (Galvanneal Strip Thermometer) Card Parameters
A6 RP4 (Ratio Thermometer) Card Parameters
A7 Maths Card Parameters (Common Parameters)
A8 Standardsoftware-specicparametersnotavailableinADPsoftware
A9 ADPsoftware-specicparametersnotavailableinstandardsoftware
AppendixB-SystemCommunicationsTimingData
Parameter update rate
Command response time
Command reply time
Inter-command timing
Cablelengths

Landmark Graphic Signal Processor
Serial Communications
User Guide

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User Guide Landmark Graphic Signal Processor
Serial Communications
1 Introduction
The Landmark Graphic serial communications option allows communication
betweentheprocessorandeitheraterminaloracomputer.
Thisfacilitycanbettedduringmanufactureorpurchasedasanupgradekit
for an existing processor.
Two types of serial communications are supported.
1) RS232C-compatiblewitheitherterminalsorcomputers,whichallows
communications with a single processor only.
2) RS485-compatiblewithallcomputerswithanRS485serialinterface.
Theserialoptionisusercongurable,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: 0 to 15 (in RS485 only)
Baud rate: 300, 600, 1200, 2400, 4800 and 9600
Databits: 8or7bits
Parity: None, Odd or even
Stopbits: 1 or 2
Table1SerialCommunicationsspecication
If you purchased your serial interface as an upgrade kit, then refer to Section
2 for the correct installation procedure.
Refer to Section 4 for details of how to set up the serial communications link.
Refer to Appendix B for serial port timing data.

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Landmark Graphic Signal Processor
Serial Communications
User Guide
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THERMOMETER OUTPUT CMD ALARMS
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RS 485
RS 232C
200 - 240V
100 - 120V
T 1A 250V35VA MAX.
50-60Hz
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LANDMAR K G RAPHIC ®
LMG 1 1
S/NO. 123/456/78
MADE IN E NGLAND
1994
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AB
C D
A
A A
A B
B
 Fig.1Locationofscrewsonbackpanel S4970076
Notch in EPROM at this end
EPROM locking lug
Fig. 2 Orientation of EPROM inside processor 051002

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User Guide Landmark Graphic Signal Processor
Serial Communications
2 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.
1) Refer to Fig. 1. Unscrew the four screws (A). Retain the screws in a
safeplaceforre-assembly.
2) 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. If your kit does
not have an EPROM in it, go straight to step 12.
3) Refer to Fig. 1. Remove the two screws (B) which secure the power
supplyintothecase.Retainthescrewsinasafeplaceforre-assembly.
4) Carefully slide the power supply out of the rear of the processor and
placethepowersupplyononeside.ThemasterEPROMwillnowbe
clearlyvisible.(RefertoFig.2).
5) ExaminethelabelontheEPROMandreadthesoftwareversionnumber
printedonthelabel.IfthesoftwareversionnumberisV/.XXthenthe
EPROMwillneedtobeextracted.IftheversionnumberisV2.00or
higher, go straight to step 12.
To extract the EPROM from the unit, follow steps 6 and 7 very carefully.
6) MakeanoteoftheorientationoftheEPROMthatiscurrentlytted.
7) Priseapartthetwobluelockinglugs,situatedatthetopandbottomof
theEPROMsocket.TheEPROMwillbeejectedfromthesocket.
CAUTION
Incorrect orientation of the EPROM will cause permanent damage
to the device.
8) Insert the new EPROM carefully into the socket, ensuring that it is
orientatedcorrectlyinthesocketandthatnoneofthepinshavebecome
bentordamaged.
9) Ensure that the locking lugs secure the EPROM into its socket.
10) Slide the power supply into it’s slot in the rear of the processor.
11) Refer to Fig. 1. Secure the power supply into the processor, using the
two screws (B) which were removed originally.

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Landmark Graphic Signal Processor
Serial Communications
User Guide
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.
16) Refer to Fig. 1. Secure the rear panel onto the processor, using the four
screws (A) which were removed originally.
17) Insert the IEC connector into the power supply.
The serial communications option is now installed in the Landmark
Graphic Processor.
Fig. 3 Main Menu LMG_010003

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User Guide Landmark Graphic Signal Processor
Serial Communications
3 Setting up the Serial Communications Port
For a full description of the operation of the processor, refer to the Landmark
Graphic Processor User Guide.
1) ConnecttheLandmarkGraphicProcessortoasuitablepowersupplyand
switch it on.
2) Press the (ENTER)keyonthefrontpanel.TheMainMenuwillbe
displayed. Refer to Fig. 3.
3) Use the (UP) and/or (DOWN) keys to change the displayed code
value to 417.
4) Press the (ENTER)key.TheMainCongurationMenuwillbe
displayed. Refer to Fig. 4.
5) Use the UP and/or DOWN keys to select the Serial Card menu option.
6) Press the ENTER key.
 TheSerialCardCongurationMenuwillnowbedisplayed.RefertoFig.5.
7) UsetheUPand/orDOWNkeystoselecttheFormat option.
8) Press the ENTER key to enter the Format menu.
9) Press the ENTER key to select the format value.
10) Use the UP and/or DOWN keys to select from either RS232C or RS485
serial communications formats to match the computer or terminal which
istobeconnectedtotheprocessor.
11) Press the ENTER key.
12) If RS485 was selected, follow steps 13 to 16. If RS232C was selected,
go straight to step 17.
13) Use the UP and/or DOWN keys to select the Address option.
14) Press the ENTER key.
15) Use the UP and/or DOWN keys to select the required address.
16) Press the ENTER key.
17) Use the UP and/or DOWN keys to select the <<< RETURN option.
18) Press the ENTER key.
19) Use the UP and/or DOWN keys to select the Baud Rate option.
20) Press the ENTER key.
21) Use the UP and/or DOWNkeystoselecttherequiredbaudrate
tomatchthecomputerorterminalwhichistobeconnectedtothe
processor.
22) Press the ENTER key.
23) Use the UP and/or DOWN keys to select the Word Length option.
24) Press the ENTER key.
25) Press the ENTER key to select the Word Length value.
26) Use the UP and/or DOWN keys to select the required word length
tomatchthecomputerorterminalwhichistobeconnectedtothe
processor.
27) Press the ENTER key.
28) Ifsevenbitswereselectedforwordlength,usetheUP and/or DOWN
keys to select the Parity option.

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Landmark Graphic Signal Processor
Serial Communications
User Guide
 Fig.4MainCongurationMenu LMG_010004
 Fig.5SerialCardCongurationMenu LMG_010005

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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CongurationMenuisdisplayed.
38) SelecttheEXIToptionfromtheSerialCardCongurationMenu.
39) Press the ENTER key.
40) SelecttheSAVECHANGESoptionfromthesub-menu.
41) Press the ENTER key. The Main Menu is displayed.
42) Select the QUIT option from the Main Menu.
43) Press the ENTER key. The processor reverts to the normal operating
mode.
TheLandmarkGraphicprocessorisnowconguredtomatchtheserial
communications settings of your computer or terminal. Now refer to the
interconnection details in Section 4.0 of this User Guide to ensure that your
connections are also correct.

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Landmark Graphic Signal Processor
Serial Communications
User Guide
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.
Fig. 6 RS232C mode READ protocol 010006
Computer/Terminal
R
x
x
x
CR
Landmark Graphic
x
x
LF
LF
(Optional)
CR
x
CR
LF
Parameter value
being requested
(ASCII)
x
Channel letter
Value or requested
parameter
(ASCII)
If the * character is received at any time, the entry is invalid and is not implemented
# denotes System
Card Parameter
NOTE
The optionalLFcanbesentornot-itwillbeignored/deletedbythe
rmware.

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User Guide Landmark Graphic Signal Processor
Serial Communications
3.1.2 RS232C download data mode
Fig. 7 RS232C mode WRITE protocol 010007
3.1.3 RS232C examples
TheRS232communicationsisdesignedprimarilyforusebyanoperatorwith
adumbterminal.OnlystandardASCIIcharactersareused.
To read the temperature from channel ‘A’...
Type at the terminal RATMP [enter]
breakdown R Read mode
A Channel A
TMP Command to report the temperature
[enter] Press terminal enter key
* See Note 1
reply 1000C Temperature and units
To set the emissivity of channel ‘B’ to 0.5...
Type at the terminal SBEMS 50 [return]
breakdown S Set mode
B Channel B
EMS Command to work on the emissivity value
D(Space)
50 New value
[enter] Press terminal enter key
reply None
Computer/Terminal
S
x
x
x
Landmark Graphic
x
x
x
CR
LF (Optional)
Parameter value
being modified
(ASCII)
x
New parameter
value
(ASCII)
Space
Channel letter
If the * character is received at any time, the entry is invalid and is not implemented
# denotes System
Card Parameter
NOTE
The optionalLFcanbesentornot-itwillbeignored/deletedbythe
rmware.

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Landmark Graphic Signal Processor
Serial Communications
User Guide
To read label of channel ‘C’ ...
Type at the terminal RCLBL [enter]
breakdown R Read mode
C 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 S Set mode
     D  ChannelD
     LBL  Commandtoworkonthelabel
D(Space)
   Mill#1  Newlabeltext,notetheleadingspace
[enter] Press the terminal enter key
Note 1
After the enter character is received, the LMG returns a line feed
carriage return to ensure that the reply is on a new line. This needs to
betakenintoaccountwhenaterminalisnotinuse.

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User Guide Landmark Graphic Signal Processor
Serial Communications
Computer/Terminal
STX (0x02)
Unit ID (0x??)
R
x
x
x
Landmark Graphic
x
x
x
UNITS
Parameter value
being modified
(ASCII)
x
New parameter
value
(ASCII)
Channel letter (ASCII)
If the * character is received at any time, the entry is invalid and is not implemented
ETX (0x03)
STX (0x02)
Unit ID (0x??)
Channel letter (ASCII)
ETX (0x03)
3.1.4 RS485 request data mode
Fig. 8 RS485 mode READ protocol 010008
3.1.5 RS485 download data mode
Fig. 9 RS485 mode WRITE protocol 010009
Computer/Terminal
STX (0x02)
Unit ID (0x??)
S (ASCII)
x
x
x
Landmark Graphic
Parameter value
being modified
(ASCII)
Channel letter
If the * character is received at any time, the entry is invalid and is not implemented
x
x
x
ETX (0x03)
x
New parameter
value
(ASCII)
Space

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Landmark Graphic Signal Processor
Serial Communications
User Guide
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
R Read mode
A Channel A
TMP Command to report the temperature
     ETX  Binary0x03,endoftextframingcharacter
reply    [STX][addr]A1000C[ETX]
breakdown   STX  Binary0x02,startoftextframingcharacter
addr Binary address of replying processor
A Channel ident of replying processor
1000C Temperature and units
     ETX  Binary0x03,endoftextframingcharacter
To set the emissivity of channel ‘B’ to 0.5 ...
Type at the terminal [STX][addr]SBEMS50[ETX]
breakdown   STX  Binary0x02,startoftextframingcharacter
     addr Binaryaddressofprocessortobeinterrogated
S Set mode
B Channel B
EMS Command to work on the emissivity value
50 New emissivity value
     ETX  Binary0x03,endoftextframingcharacter
reply None

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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
R Read mode
C 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
C Channel ident of replying processor
     ChC Labelheader
     XYZ  ChannelClabel
     ETX  Binary0x03,endoftextframingcharacter

Page 14
Landmark Graphic Signal Processor
Serial Communications
User Guide
4 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.
RS 232C
Screen
TxD
RxD
1
2
3
7
GND
Fig. 10 RS232C interface connector on rear panel of processor 010010
235 237
IBM PC
(or compatible)
D connector
2
7
11
3
Landmark Graphic
25 way
D connector
GND
TxD
RxD
GND
RxD
TxD
9 way D type 25 way D type
Fig. 11 RS232C interface connections 010011