CPM2A_Обзор (986751), страница 3
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hole73 (2.99)90(3.54)43 (1.69)86 (3.39)50 (1.97)13CPM2ACPM2AUnit: mm (inch)J COMMUNICATION ADAPTER MODULESCPM1-CIF01CPM1-CIF1130 (1.18)30 (1.18)56 (2.20)50212161 (2.40)5090(3.54)90(3.54)8181FunctionsJ CONFIGURATIONThe CPM2A PLCs incorporate a variety of features, includingsynchronized pulse control, interrupt inputs, pulse outputs,analog settings, and a clock function. Use the CPM2A CPU Unitas a stand-alone controller for a broad range of machine controlapplications.The CPM2A easily communicates with personal computers, otherOMRON PLCs, and OMRON Programmable Terminals. Thesecommunications capabilities allow the user to design a low-costdistributed production system.The CPU Unit contains 20, 30, 40, or 60 I/O points and ExpansionI/O blocks can be added to provide a total I/O capacity of up to 120I/O points.
Analog I/O modules, Temperature Sensor modules, andCompoBus/S I/O Link modules can also be connected.Peripheral PortUse this port for programming devices (compatible with other OMRON PLCs) as well as HostLink and no-protocol communications.RS-232C PortThis port can be used for a HostLink, no-protocol, 1:1 data link, or1:1 NT Link communications.J TIME-PROPORTIONAL CONTROLThe CPM2A performs simple-to-program, time-proportionalcontrol using up to three Analog I/O modules (maximum 6 analoginputs and 3 analog outputs) and the PID and PWM expansioninstructions. These instructions set the parameters for PIDcontrol and a pulse output with variable duty ratio.
For increasedreliability, an open-circuit detection function can be used with the1 to 5 VDC and 4 to 20 mA analog input settings.For temperature monitoring applications, CPM2A accepts up to 6inputs (two per module) from Temperature Sensor Inputmodules. The PID instruction can manipulate the input fromeither thermocouple or platinum resistance thermometer sensors.J DISTRIBUTED I/O CONTROLOmron’s CompoBus/S Network provides distributed CPU controlbased on a “PLC + compact PLC” configuration which providesimprovements over distributed control based on “PLC + remoteI/O” configurations.
The distributed CPU control makesequipment module, so designs can be standardized, specialneeds can be addressed and modules can be replaced easily inthe event of breakdown without affecting the main CPU.14MasterPLCCompoBus/S Master Module(or SRM1 PLC)CPM2A(Slave)DistributedCPU controlCompoBus/S I/OLink ModuleCompoBus/SCPM2ACPM2AJ BUILT-IN MOTOR CONTROL CAPABILITYSynchronized Pulse Control (transistor output models only)Synchronized output pulse control provides an easy way tocoordinate the operation of a peripheral piece of equipment withthe main equipment. The output pulse frequency can becontrolled as a multiple of the input pulse frequency, allowing thespeed of a peripheral piece of equipment (such as a supplyconveyor) to be synchronized with the speed of the main piece ofequipment.EncoderMotordriverCPM2AMotorPulses are output as a fixed multiple of the input frequency.J HIGH-SPEED COUNTERS AND INTERRUPTSThe CPM2A has a total of five high-speed counter inputs.
Theone high-speed counter input has a response frequency of20 kHz/5 kHz, and the four interrupt inputs (in counter mode)have a response frequency of 2 kHz.Easy Position Control with Pulse Outputs(transistor output models only)Four Input ModesWhen used as single-phase pulse outputs, there can be twooutputs with a frequency range of 10 Hz to 10 kHz with a fixedduty ratio or 0.1 to 999.9 Hz with a variable duty ratio (0 to 100%duty ratio).The high-speed counter can be used in any one of the four inputmodes: differential phase mode (5 kHz), pulse plus directioninput mode (20 kHz), up/down pulse mode (20 kHz), or incrementmode (20 kHz). Interrupts can be triggered when the countmatches a set value or falls within a specified range.Interrupt InputsThe CPM2A PLCs with transistor outputs have two outputs thatcan produce 10 Hz to 10 kHz pulses (single-phase outputs).When used as pulse plus direction or up/down pulse outputs,there can be just one output with a frequency range of 10 Hz to10 kHz.The interrupt inputs (counter mode) can be used for incrementingcounters or decrementing counters (2 kHz) and trigger aninterrupt (executing the interrupt program) when the countmatches the target value.
Use this for target-value comparison orrange comparison control that is unaffected by the cycle time.Counter inputsReset inputs (for differential phase inputs)SensorRotary encoder(such as E6C2-C)InputResponse frequencyInput mode (count value)Control method0000000001000025 kHzDifferential phase input mode (-8,388,608 to 8,388,607)Target value comparison interrupts20 kHzPulse + direction input mode (-8,388,608 to 8,388,607)Range comparison interruptsUp/down pulse input mode (-8,388,608 to 8,388,607)Increment mode (0 to 16,777,215)15CPM2ACPM2AJ PULSE OUTPUTSThe CPM2A has two pulse outputs.
You can configure these outputs as two single-phase outputs without acceleration and deceleration,two variable duty-ratio pulse outputs, or pulse outputs with trapezoidal acceleration/deceleration (one pulse + direction output and oneup/down pulse output). The pulse output’s PV coordinate system can also be specified in the PLC Setup as either relative or absolute.Stepping motorMotorcontrollerPulse outputsSingle-phase pulse output with trapezoidalacceleration/decelerationItemSingle-phase pulseoutput withoutacceleration/decelerationVariable duty-ratiopulse outputControlling instruction(s)PULS(65) and SPED(64)PWM(––)PULS(65) and ACC(––)Outputnumber01000Pulse output 0(See Note.)Pulse output 0(See Note.)Pulseoutput 001001Pulse output 1(See Note.)Pulse output 1(See Note.)10 Hz to 10 kHz0.1 Hz to 999.9 Hz10 Hz to 10 kHz10 Hz to 10 kHz10 Hz0.1 Hz10 Hz10 Hz50%0 to 100%50%50%Output frequency rangePitchDuty ratioPulse + direction outputPulse outputPulseoutput 0Direction outputNote: With single-phase pulse outputs, pulse outputs 0 and 1 can each be output independently.Application Example: Adjusting Film/Paper Web Speed in Packaging and PrintingSYSDRIVE InverterEncoderCPM2A PLCMain MotorW-Series Servo Motor/Servo Drive16Up/down pulse outputCW pulseoutputCCW pulseoutputCPM2ACPM2AJ HIGH-SPEED INPUT CAPABILITIES FORMACHINE CONTROLJ OTHER FUNCTIONSHigh-speed Interrupt Input FunctionThere are two controls on the CPU Unit that can be turned tochange the analog settings (0 to 200 BCD) of timers andcounters.
These controls can be used to easily change orfine-tune machine settings such as a conveyor belt’s pause timeor feed rate.There are four inputs used for interrupt inputs (shared with quickresponse inputs and interrupt inputs in counter mode) with aminimum input signal width of 50 µs and a response time of0.3 ms. When an interrupt input goes ON, the main program isstopped and the interrupt program is executed.Quick-response Input FunctionThere are four inputs used for quick-response inputs (shared withinterrupt inputs and interrupt inputs in counter mode) that canreliably read input signals with a signal width as short as 50 µs.Quick-response inputs are received into an internal buffer, sosignals that change status within a cycle can be processed.Stabilizing Input Filter FunctionThe input time constant for all inputs can be set to 1 ms, 2 ms,3 ms, 5 ms, 10 ms, 20 ms, 40 ms, or 80 ms.
The effects ofchattering and external noise can be reduced by increasing theinput time constant.Interval Timer InterruptsAnalog SettingsCalendar/ClockThe built-in clock (accuracy within 1 minute/month) can be readfrom the program to show the current year, month, day, day ofthe week, and time. The clock can be set from a programmingdevice (such as a Programming Console) or the time can beadjusted by rounding up or down to the nearest minute.Long-term TimerThe long-term timer provides an easy way to control equipmentscheduling.
Use two instructions to set this up. The long-termtimer instruction (TIML) lets you set values up to 99,990 seconds(27 hours, 46 minutes, 30 seconds) and the Seconds-to-Hoursconversion instruction (HMS) lets you schedule this with otherclock functions.The interval timer offers a 0.5 and 319,968 ms range and can beset to generate just one interrupt (one-shot mode) or periodicinterrupts (scheduled interrupt mode) to match the application.CommunicationsJ NT LINK FOR PROGRAMMABLE TERMINALSThe CPM2A can be connected directly to an OMRON NT-Series Programmable Terminal in NT Link mode (1:1) for high-speed transmission of data. No separate drivers are required Use the RS-232C port for the NT Link connection.CPM2A CPU UnitC200H-CN320-EUOmron’s NT-SeriesProgrammable TerminalsRS-232Cport17CPM2ACPM2AJ HOST LINKA Host Link connection can be made through the CPM2A’s RS-232C port or Peripheral port. A personal computer or Programmable Terminal connected in Host Link mode can be used for operations such as reading/writing data in the CPM2A’s I/O memory or reading/changing the controller’s operating mode.1:1 Host Link Communications1:N Host Link CommunicationsComputer withRS-422/RS-485CommandsCommandsPeripheral port connection*CPM2A usingdirect RS-232Cport connection.ResponsesCPM1-CIF01*ResponsesCPM1-CIF11**Optional communications adapterconverts the Peripheral port toRS-232C.CPM2A(RS-232C port connection)*Optional communications adapter converts thePeripheral Port to RS-422/RS-485.
(Up to 32CPM2As can be connected.)No-Protocol CommunicationsThe transmit TXD (48) and receive RXD (47) instructions can be used in No-Protocol mode to exchange data with standard serial devices. For example, data can be received from a bar code reader or transmitted to a serial modem. The serial devices can be connecteddirectly to the RS-232C port or the Peripheral port using the CPM1-CIF01 serial communications adapter.Inputting data from a barcode readerOutputting data to aserial modemBar code readerSerial modem*An RS-232C Adapter is neededto connect to the Peripheral port.CPM2A(RS-232C port connection*)CPM2A(RS-232C port connection*)J 1:1 DATA LINKSA CPM2A can be linked directly to another CPM2A, CQM1, CPM1, CPM1A, CPM2C, SRM1(-V2), or a C200HS or C200HX/HG/HE programmable controller.
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