Beginner guide (986746), страница 5
Текст из файла (страница 5)
The computer to PC connections can be established using either RS-232C or RS-422Adapters.1:1 Communications to ComputerThe following diagram shows t, the possible methods for a 1 to 1 connection between a CPM1A,OMRON Programmable Terminal (an operator interface device) and an IBM PC/AT or compatiblecomputer.Communications Adapter ComponentsRS-232C Adapter1.Mode Setting SwitchSet this switch to “HOST” when using a Host Link system to connect to a personal computer.(Set this switch to “NT” when connecting to a programmable Terminal via a 1:1 NT link).2.ConnectorConnector to the CPU’s Peripheral Port.3.RS-232C PortConnects to the RS-232C cable from the other devices such as a personal computer, PeripheralDevice, or Programmable Terminal.2-112.SYSTEM CONFIGURATIONMulti-drop Communications to ComputerThe following diagram shows how to connect up to 32 CPUs (CPM1A only) to an IBM PC/ATor compatible computer.The maximum cable length of RS-422 should be 500m.Adapters and CablesThe following table lists some of the Adapters and Cables used in Host Link communications.NameRS-232C AdapterRS-422 AdapterConnecting CablesLink AdapterUsageConverts to peripheral port-level communicationsUsed to connect IBM PC/AT or compatiblecomputers.
(Cable length:3.3 m)Converts between the RS-232C and RS-422formats.Model numberCPM1-CIF01CPM1-CIF11CQM1-CIF02B500-AL0042-122.SYSTEM CONFIGURATIONRS-422 Adapter1.Termination Resistance SwitchSet the Link Adapter and RS-422 Adapter at each end of the main line to “ON” when using thetermination resistance switch.2.ConnectorConnects to the CPU’s Peripheral Port.3.RS-422 PortConnects to the Host Link network.2-132.•SYSTEM CONFIGURATION1-to-1 PC Communication LinksA data link can be created with the LR data area in another CPM1A, CPM1, CQM1, SRM1 orC200HS PC or C200HX/HE/HG PC. An RS-232C Adapter is used to make the 1-to-1 connection.NameRS-232C AdapterUsageConverts to peripheral port format.Model numberCPM1-CIF012-142.•SYSTEM CONFIGURATIONNT Link CommunicationNT Link is a high speed interface between the CPM1A and a Programmable Terminal.
The RS232Cadapter needs to be used for this connection, with the mode switch on the adapter set to “NT Link”.CPM1A CPUOMRON Programmable TerminalRS-232CAdapterRS-232C CableNameRS-232C Adapter•UsageConverts to peripheral port format.Model numberCPM1-CIF01Programming Example of 1:1 PLC Link Between 2 CPM1A UnitsRS-232C CableRS-232CAdapterCPM1A CPURS-232CAdapterMASTER PROGRAMSLAVE PROGRAM25313AlwaysONCPM1A CPU25313MOV(21)000LR00Send data ofMasterto SlaveMOV(21)LR08010Receive SlavedataEND(01)Note: Set DM6650 = 3000 andmust set interface to NT linkAlwaysONMOV(21)000LR08Send data ofSlave toMasterMOV(21)LR00010Receive datafrom MasterEND(01)Note: Set DM6650 = 3000 andmust set interface to NT link2-152.qSYSTEM CONFIGURATIONCPM2A Communication FunctionsThis section describes how to use CPM2A communications functions.
The following types ofcommunications are being describe: Host Link, No-Protocol, NT Link, or one-to-one linkcommunications.•Host Link CommunicationsHost Link communication area a conversational-type communication protocol, in which the PLCsends responses to commands issued from a host computer and can be used to read or write data inPLC’s data areas and control some PLC operations. Host Link communications can be used throughthe peripheral port or the CPM2A’s RS-232C port.2-162.SYSTEM CONFIGURATIONMulti-drop Communications to ComputerUp to 32 Omron PLCs, including the OMRON PLCs, can be controlled from a host computer. Thefollowing diagram show separate RS-232C port and Peripheral Port configurations, but both portcan be used simultaneously.RS-232C Port ConnectionRS-232CCableB500-AL004 or NT-AL001RS-422A/485 (Total: 500 m max.)IBM PC/AT orcompatiblecomputerNT-AL001RS-232CRS-232C portRS-232C portNT-AL001RS-232CRS-232C portUp to 32 PLCPeripheral Port ConnectionRS-232CCableNT-AL001RS-232CB500-AL004 or NT-AL001RS-422A/485 (Total: 500 m max.)IBM PC/AT orcompatiblecomputerCPM1-CIF11CPM1-CIF11Peripheral portPeripheral portCPM1-CIF11Peripheral portUp to 32 PLCThe NT-AL001 must be supplied externally with 5 VDC.2-172.•SYSTEM CONFIGURATIONNo-Protocol Communication (RS-232C Communication)When no-protocol communications are used, data can be exchanged with serial devices such as barcode readers and serial printers using TXD(48) and RXD(47).
No-protocol communications can beused with either an RS-232C port or peripheral port.CPM2A CPU UnitRS-232C devicesBar Code readerSerial PrinterOtherRS-232C portCPM1A-CIF01 RS-232C Adapter.(CTS control cannot be used.)CPM2A CPU UnitRS-232C devicesBar Code readerSerial PrinterOtherPeripheral portCPM2A CPU UnitRS-232C devicesCQM1-CIF02 RS-232C Adapter.(CTS control cannot be used.)Bar Code readerSerial PrinterOtherNoteWhen using the No-protocol communication, it is necessary to setup the Peripheralcommunicationport setting inthe DM area. For detail, please refer to Appendix behind.2-182.•SYSTEM CONFIGURATIONNT Link CommunicationThe NT Link allows a CPM2A PLC to be connected directly to an OMRON ProgrammableTerminal. There is no need for a communications program on the PLC.
The NT Link can be usedwith a RS-232C port.•One-to-one Link communicationsA one-to-one data link of up to 256 bits (LR 00000 to LR 01515) can be created with the data areaof another CPM2A, CQM1, CPM1A, SRM1(-V2), or a C200HX/HG/HE PLC, where one serves asthe MAster, that other as Slave. There is no need for a communications program on the PLC.The one-to-one link can be used with an RS-232C port.The link relay area on the CPM2A PLCs is only 16 words, LR00 to LR15. When performing a oneto-one link with a CPM2A PLC and CQM1, C200HS or C200HW/HG/HE use the corresponding 16words, LR00 to LR15 on the CQM1, C200HS or C200HW/HG/HE. A one-to-one link with aCPM2A PLC cannot be performed using LR16 to LR63.2-192.•SYSTEM CONFIGURATIONCompoBus /S I/O Link ConnectionsA CompoBus/S I/O Link can be used to create an I/O link (remote I/O) of 8 input points and 8output points with a CompoBus/S Master or Unit SRM1 PLC.
The connection is made through aCompoBus/S I/O Link Unit.From the standpoint of the CPM2A CPU unit, the area allocated to the CompoBus/S I/O Link Unitcan be treated just like the area allocated to an Expansion I/O Unit. The difference is that the bits arenot actual I/O points, but I/O bits in the Master Unit.CablesUse special flat cable or VCTF cable to connect the nodes in the CompoBus/S I/O link. (Special flatcables and VCTF cables cannot be combined in the same system.)NameFlat CableVCTF CableModel NumberXB1T-W10---Specifications4-conductor flat cable, 0.75 mm22-conductor VCTF, 0.75 x 202-202.•SYSTEM CONFIGURATIONPeripheral Device ConnectionsCPM1A and CPM2A programming can be created or edited with a Programming Console or apersonal computer running SYSWIN.•Programming ConsoleA CQM1-PR001-E or C200H-PRO27-E Programming Console can be connected to the CPM1 andCPM2A, as shown in the following diagram.CQM1-PRO01-ECPM1A CPUC200H-CN222 (2m)C200H-CN422 (4m)C200H-PRO27-ECPM2A CPUNameCQM1-series Programming Console(The Connecting Cable is attached.)C200H-series Programming Console(Cable C200H-CN222 needed for connection.)Model numberCQM1-PRO01-EC200H-PRO27-E2-212.•SYSTEM CONFIGURATIONSYSMAC Window-based Support SoftwareAn IBM PC/AT compatible personal computer running SYSWIN can be connected to the CPM1Aas shown in he following diagram.CPM1ACPM1A-CIF01RS-232C CableIBM PC/AT orcompatible computerCPM2ACQM1-CIF02SYSWINBy RS-232C PortConnect to the CPU Units RS-232C port with an XW2Z-[]00S or XW2Z-[]00S-V ConnectingCable or Hostlink Cable Self-made.IBM PC/AT orcompatible computerRS-232C CableSYSWINNoteThe XW2Z- 00S cables have a D-Sub 25-pin connector and the XW2Z- 00S-V cables have a DSub 9-pin connector.2-222.SYSTEM CONFIGURATIONNameRS-232C AdapterUsageConverts to Peripheral Port format.Connecting CableUsed to connect IBM PC/AT orcompatible computers.
(Length: 3.3 m)From RS-232C port to computer.(CPM2A)For IBM PC/AT or compatiblecomputers (3.5” disks, 2HD)RS232 CableSYSWIN(Windows Version)Model numberCPM1-CIF01CQM1-CIF01CQM1-CIF02XW2Z- 00SXW2Z- 00S-VSYSWIN-E-V3.3Communication Settings (For CPM2A)Set the CPU Unit’s Communication Switch to ON when using the standard communicationssettings.Set the switch to OFF to use the setting in the PLC Setup Area.NoteSettingModeBaudRatePeripheral portDM 6650 bits 12 to 15DM 6651 bits 00 to 07RS-232C portDM 6645 bits 12 to 15DM 6646 bits 00 to 07Setting0: Host Link00: 1,200 bps01: 2,400 bps02: 4,800 bps03: 9,600 bps04: 19,200 bps05: 38,400 bpsFrameformatDM 6651 bits 08 to 15DM 6646 bits 08 to 1500 (See note)The standard settings are: Host Link, 9600 bps, 7 data bits, 1 start bit, 2 stop bits, and even parity.2-232.•SYSTEM CONFIGURATIONTraining Kit ConfigurationINPUT0 1 2 3 4 5 6 7 8 9 10 11Fig.
2.1:The CPM1ATraining KitIn Fig. 2.1, we see the overall outlook of the CPM1A training kit. It consists of : 12 Input switchesconnected to the input terminals of the CPM1A CPU.On the top surface of the CPM1A, we could find the peripheral port, 4 LED indicators and theexpansion port. The peripheral port is meant for the programming console or the RS232C peripheralinterface.
The four LED indicators are RUN, POWER, ERROR and Coummnication.The L and N terminals is connected to power source to supply power to the CPM1A.In the CPM1A, channel 0 is assigned as input and channel 10 is assigned as output. Each channelconsists of 16 bits starting from bit 00 to bit 15. For more information about the other memoryaddresses, refer to Appendix C of this manual.
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