NT21_Reference Manual (V069-E1-1) (986756), страница 10
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(The NT21 does not support this function.)Compatible PCs34The NT31/NT31C and NT631/NT631C can be connected to the following Mitsubishi PCs.• Mitsubishi A series programmable controller (computer link module)• Mitsubishi FX series programmable controller• SLC500 Series by Allen-Bradley• 90-20 and 90-30 Series by GE Fanuc• S7-300 and S7-400 Series by Siemens• TSX Series by ModiconFor details on the procedure for connecting to other model PCs, refer to the PCConnection Manual, or NT31/631 Multi Vendor Connection Manual.SectionCommunication by Using Memory Links1-51-5Communication by Using Memory LinksIn this section, a communication method other than the direct connection, calledthe memory link, is discussed.1-5-1 Memory LinkThe memory link is a method to send and receive data between a personal computer or a FA computer and the PT by using RS-232C/422A communication.In memory link, there is an area called the PT Memory, as shown below, insidethe PT, and this area is treated as a virtual area on the PC.
This allows PTmemory and the display elements of the PT to make a quasi-direct connection.By sending a command for the memory link, the host can make the PT executeprocesses through PT memory. Frequently used commands are kept handy forread and write tasks of the numeral memory table, character-string memorytable, and bit memory table.NT31/NT31CPTPCPT memoryNumeralmemorytableLampDirect connectionRS-232C/422AcommunicationIn the memory link method, the only difference is that the PT finds its communication target inside instead of outside. In the memory link method, therefore,change of the target is all that is needed to be capable of using the exact screendata that is acquired by the direct connection.
(With the NT21, NT31/NT31C,and NT631/NT631C, the Support Tool must be used to convert the data toscreen data for the memory link.)When compared to the direct connection of the host link or NT Link methods, thememory link method has some restrictions regarding the use of some functions,as described below.• The Programming Console and Device Monitor functions cannot be used.• The following strobes of PT status notify bits do not turn ON (page 7 to 27).Screen switching strobeNumerals input strobeCharacter-string input strobe• The usable area for allocation is the PT memory only.1-5-2 Comparison between Direct Connection and Memory LinkThe major differences between the direct connection and the memory link are asfollows:• In the memory link method, the communication with the host should be carriedout by using commands.
Compared to the ordinal direct connection, which canbe used requiring almost no programs, the memory link method requires a program that is necessary for interchange of commands. This, however, gives advantages to the memory link method by using a large variety of functions available in the direct connections from major models such as a personal computerand a FA computer equipped with RS-232C/RS-422A communication means,allowing the PT to be suited for larger usage.35Communication by Using Memory LinksSection1-5• Actual PCs have many kinds of areas, where as PT memory is a single area.When creating screen data by using the memory link methods, it is always necessary to allocate PT memory to display parts.For communication between the host and the PT by the memory link method,refer to Section 4 Using Memory Link, and for how to use screen and displayelements, refer to Section 3 How to Use the PT.1-5-3 Memory Link Online Transfer FunctionWhen memory link communications are being used, the PT can be switched toTransmit mode from the host and screen data can be written even if the PT isoperating.
(The PT can be returned to RUN mode after the screen data is written.)The memory link online transfer function can be used to replace screen data at afixed time each day or replace screen data with maintenance screen data formaintenance.For more details on the memory link online transfer function, refer to 4-4 MemoryLink Online Transfer Function.36SectionBefore Operating1-61-6Before OperatingFollow the procedure given below to start the system of the NT21, NT31/NT31C,or NT631/NT631C.HostSupport ToolNT21, NT31/NT31C,or NT631/NT631CSet the host settings.Install the PT in theoperation panel.Install the SupportTool at the computer.(refer to the manual forthe Support Tool)Connect the power supplyand peripherals.Install the system program.*1Make the settings in thesystem installer mode.*2Create the screens.(refer to Sections 2through 5 and theSupport Tool manual)Transmit the screen data.Set the memory switches.Connect to the NT21,NT31/NT31C orNT631/NT631C.Create the host program.Connect to the host.Confirm the settings andcheck communication.Start operation.*1: System program installation is only done in special circumstances, for examplewhen changing the system program, or to recover the original status of theinstalled program.
This operation is not normally necessary. When using other PCmodels (sequencers), however, it is necessary to install specific system programs.*2: Display of the system menu, and all change operations, can be disabled to preventthe accidental deletion or alteration of screens and settings.Reference:S For the system program, use the NT21, NT31/NT31C, or NT631/NT631C system program supplied as an accessory with the NT series Support Tool (NTZJCAT1-EV4).S For the Support Tool, use NT-series Support Tool for Windows 95/98 (Ver.
4).Refer to the following manuals for the Units and software.37SectionBefore OperatingEquipment or SoftwareManual TitleManual NumberNT21Setup ManualV068-E1-jNT31/NT31CSetup ManualV062-E1-jNT631/NT631CSetup ManualV063-E1-jSystem InstallerNT-series Support Tool for Windows 95/98 (Version 4)V061-E1-jSupport ToolNT-series Support Tool for Windows 95/98 (Version 4)V061-E1-jPCSYSMAC CPM1 Operation ManualW262-E1-jSYSMAC CPM1A Operation ManualW317-E1-jSYSMAC CPM2A Operation ManualW352-E1-jSYSMAC CPM2C Operation ManualW356-E1-jSYSMAC C200H Operation Manual (for CPU01/03/11) (programming)W130-E1-jSYSMAC C200H Operation Manual (for CPU21/23/31) (programming)W217-E1-jSYSMAC C200HS Installation GuideW236-E1-jSYSMAC C200HS Operation Manual (programming)W235-E1-jSYSMAC C200HX/HG/HE(-Z) Installation GuideW302-E1-jSYSMAC C200HX/HG/HE Programming ManualW303-E1-jSYSMAC C200HX/HG/HE-Z Programming ManualW322-E1-jSYSMAC C1000H/C2000H Operation Manual (programming)W140-E1-jSYSMAC CQM1 Programming ManualW228-E1-jSYSMAC CQM1H Operation ManualW363-E1-jSYSMAC CQM1H Series Serial Communications Board OperationManualW365-E1-jSYSMAC CVM1/CV500/CV1000/CV2000 Operation Manual: LadderDiagramsW202-E1-jCS Series CS1G/H-CPU jj-EV1 Programmable Controllers Operation ManualW339-E1-jCJ Series CJ1G-CPUjj-E Programmable Controllers OperationManualW393-E1-jCS/CJ Series Programmable Controllers Programming ManualW394-E1-jCS/CJ Series Serial Communications Boards/Units Operation ManualW336-E1-jCompoBus Master Control UnitSRM1 Operation ManualW318-E1-jProgramminggg DevicesSYSMAC Support Software Operation Manual: C-series PCsW248-E1-jSYSMAC Support Software Operation Manual: CVM1 PCsW249-E1-jSYSMAC CPT Operation ManualW332-E1-jW333-E1-jCX-Programmer Operation ManualHost Link Unit/CCommunicationsi iBBoardd381-6-SYSMAC C Series Host Link Unit Operation ManualW143-E1-jSYSMAC CVM1/CV Series Host Link Operation ManualW205-E1-jSYSMACC200HW-COM01 C200HW-COM02-V1 to C200HW-COM06-EV1Communications Boards Operation ManualW304-E1-jSECTION 2PT FunctionsThis section describes the functions of the PT.2-12-22-32-42-52-62-72-82-92-102-112-122-132-14PT Screens .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1-1 Screen Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1-2 Screen Numbers . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1-3 Screen Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1-4 Screen Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .2-1-5 Display Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1-6 Display Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .Areas for Control/Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2-1 PT Status Control Area (Host ↔ PT) . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .2-2-2 PT Status Notify Area (PT to Host) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2-3 Window Control Area (Host ↔ PT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2-4 Clock Data Area (Host to PT, NT21 Only) . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .Memory Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3-1 Numeral Memory Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3-2 Character String Memory Table .
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