Retriggerable timer | LG Electronics 120S specs

Chapter 5 Power Supply / CPU

5)Retriggerable timer

The operation of retriggerable timer is same as that of monostable timer. Only difference is that the retriggerable timer is not ignore the input condition of TRTG instruction while the timer is operating (decreasing). The current value of retriggerable timer will be set as preset value whenever the input condition of TRTG instruction is turned on.

Timer input condition

PT

Timer output relay

Preset value (PV)

(On operation)

Current value

REMARK

The Maximum timing error of timers of MASTER-K series is ‘1 scan time + the time from 0 step to timer instruction’

5-11

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LG Electronics 120S user manual Retriggerable timer

Contents

MASTER-K 120S series Safety Instructions Design Precautions Not doing so could cause a malfunction, failure or drop Poor connection could cause an input or output failure Not doing so could result in erroneous operation Such debris could cause fire, damage, or erroneous operation Doing so could cause electric shock or erroneous operation Not doing so can cause a malfunctionNot doing so could cause poisonous pollution or explosion Revision History Contents Power Supply / CPU Communication I/F Module ················· 4 Input and Output Modules Usage of Various Functions100 104 Installation and Wiring Communication Function Maintenance Troubleshooting General Guide to Use This Manual Features Terminology KglwinFAM RTC Output Contact Overall Configuration Basic systemExpansion G7L-CUEB, G7L-CUEC System Configuration Cnet I/F system Communications systemMASTER-K120S MASTER-K120SMASTER-K120S 1n Communications system MASTER-K120S G7L-CUEBRS-232C ⇔ RS-422 Converter G7L-CUEC Product Functional Model Product Functional BlockMain Unit CPU Main Unit Standard type Main Unit Economic type Expansion Modules General Specifications General Specifications Main Unit PWR LEDRUN LED LED 1 60-points main unit Standard Name Description 2 40-points main unit Standard 3 30-points main unit Standard 4 20-points main unit Standard 5 30-points main unit Economic Names of Parts 6 20-points main unit Economic 7 14-points main unit Economic8 10-points main unit Economic Expansion I/O Module 1 20points I/O Module2 10points I/O Module Names of Parts 3 8points I/O Module Special Module 1 A/D·D/A Combination Module Names of Parts 2 D/A Conversion Module G7F-DA2I Names of Parts Analog timer Module RTD Input Module Communication I/F Module Cnet I/F ModuleFnet I/F Module Option Module Names of Parts Pnet I/F ModuleDeviceNet I/F Module Power Supply Specifications Standard TypeEconomic Type DR/DRT/DT60U CPU Specifications Items Specifications RemarksD0000 ~ D4999 Data register Operation modes RUN, STOP, PAUSE, Debug Items Specifications JOG Power Supply / CPU Economic Type K7M-DR10UE K7M-DR14UE K7M-DR20UE K7M-DR30UERUN, STOP, Pause Remarks Dedicated protocol support Modbus protocol support RS-232C 1port Cnet I/F FunctionUser defined protocol support RS-485 1 port Operation Processing Operation Processing MethodCyclic operation Operation Processing at Momentary Power Failure Occurrence Momentary power failure within 10 msMomentary power failure exceeding 10 ms Interrupt operation method Power Supply / CPU Scan Time Scan Watchdog TimerSetting range of watchdog 10 ~ 6,000msunit 10ms Expression for scan time Power Supply / CPU Timer Processing On delay timerOff delay timer Integral timer Monostable timer Retriggerable timer Power Supply / CPU Counter Processing Up counter CTUDown counter CTD Up-down counter Ring counter Maximum counting speedOFF T1 + T2 Program Execution Procedure ProgramClassifications of Program Interrupt Programs Scan programInterrupt program Usage of interrupt program Parameter setting Time driven interrupt Process driven interruptHSC driven interrupt Error Handling Error ClassificationOperation mode at error occurrence Power Supply / CPU RUN Mode Processing when the operation mode is changedOperation processing contents Operation Modes Power Supply / CPU Stop mode Pause modeProcessing when the operation mode changes Debug modeStandard type only Operation Mode Change Operation mode change methodsDebug operation conditions Operation method Mode change Remote operation Functions Self-diagnosis Power Supply / CPU 2 I/O Force On/Off function Forced I/O setting method Power Supply / CPU Special data register for forced I/O Force on/ off Processing timing and method Power Supply / CPU Direct I/O Operation function System error historySpecial data register for error history Clear error data Memory Configuration I/O Address Allocation O No. allocation method Built-in Cnet Selection Switch ROM ModeStructure Usage Power Supply / CPU Installation connector External Memory ModuleSaving the user’s program on the external memory module Run the PLC with a program of external memory module RTC Module Read RTC dataRead RTC data from Kglwin Following message box will be displayed Write RTC data Date expressionNumber Date Sunday Monday Tuesday Wednesday Thursday Saturday Input / Output Specifications Input and Output SpecificationOpening/shutting of electric current Digital Input Specification SpecificationCircuit diagram Main unit Input wiring DC24VDC24V Example of external devices CurrentPNP Voltage Input and Output Specification Expansion Module SpecificationsModel Expansion Module Specification It’s the same with the one for the main unit Digital Output Specification Main unit Relay OutputK7M-DRT40U Economic type Model Main Unit Specifications CircuitInternal Circuit Relay Output wiring DC5V DC24VAC110/220V DC24V DC24V Model Main Unit Specifications K7M-DRT/DT20U K7M-DRT/DT30U K7M-DRT/DT40U K7M-DRT/DT60UP40,P41 24V Internal Circuit P42,P43 Internal Circuit 24V DC12V/24V It’s the same with the output circuit of the main unit … …AC110/220V DC5V/24V AC110/220V Model Expansion Module Specifications G7E-TR10A DC12/24VRefer to 7.2 ‘Special Functions’ for the special modules Performance Specifications Input specificationBuilt-in Functions High-speed counter function Names of wiring terminals Input pulse Preset inputCOM0 Input Common Input common terminal Wiring instructions External interface circuit Wiring example Pulse GeneratorVoltage output pulse generator Open collector output pulse generator InstructionHSCST HscastHigh speed counter Available device Flag Instruction Parameter Setting Usage of Various Functions Usage of Various Functions Usage of Various Functions Usage of Various Functions Usage of Various Functions Programming example Remark Using method Usage of Various Functions Pulse Catch FunctionUsage Minimum input pulse width Remark Usage of Various Functions Input Filter Function External input signal Scan program Usage of Various Functions External Interrupt FunctionMinimum processing time Function For the details , refer to Kglwin manual Introduction Manipulation Value Kp is too large MV = KpTi Edt System response when a long integration time given MV = Kp ⋅ Td dEdt Example of integral windup Perform the auto tuning operation Where, h sampling periodPID8 Perform the PID operation Usage of Various Functions ENP ENI END Usage of Various Functions DigitalOutput = Temp.⋅10 + Tse +1 Instruction PID8PID Control Instruction Available device Flag PID Auto Tuning Available device PID8AT Program Example KGL-WINTPR Usage of Various Functions Usage of Various Functions Usage of Various Functions Usage of Various Functions Error code list D4980 Performance specification Usage of Various Functions 1 A/D·D/A Combination moduleG7F-ADHA G7F-ADHB Voltage DC 0 ∼10V Names of parts and functions Explain about names of parts and functions G7F-ADHA① RUN LED Voltage Input Current Input G7F-ADHB Right current inputLeft voltage input Analog output terminal Voltage output Current output 4000 Wiring O converstion characteristics Analog input characteristics Voltage input Analog output characteristics Voltage output Program example Usage of Various Functions Usage of Various Functions 2 A/D Conversion module Remark ① RUN LED Be sure to use two-core twisted shield wire Analog/Digital conversion characteristics Program example Program Usage of Various Functions 3 D/A Conversion module G7F-DA2I G7F-DA2V ③ ① Parameter setting Scaling function Digital/Analog conversion characteristics G7F-DA2I ~20mA output Program example Usage of Various Functions Analog timer Name Contents Indicate the operating status the G7F-AT2AOff DC 5V power off or the G7F-AT2A module fault On normal operating Usage of Various Functions Name Contents Explain about names of parts and functions Parameter setting Digital conversion value register Error code D4880 ∼D4885BD bC bB BA b9 b8 b7 b6 B5 b4 b3 b2 B1 b0 D4880 CH1 CH0 Temperature conversion characteristics Digital conversion value4000 2000 6000 Type Wire No wiring Shield wireBurn-out detection function Wire resistance ≤10 Ω RTD input module P0000P0040 ~ P004F Main unit input contact P000 ~ P023 Specification Items SpecificationPositioning FunctionDRT/DT type only Output SpecificationP40, P41 Names of wiring terminal Internal circuit and wiring example COM1 Parameter setting Setting Incremental End Single 000 100Usage of Various Functions Positioning function Positioning function Speed Control Uniform Speed Operation Please refer to the ‘7.3.4 Instruction’ for details Operation pattern Operation methods are as follows RemarkStep No. can be assigned within 1 ~ Items of parameter Absolute End Single Operation Mode End Operation Start command PosistExample End operation Speed Absolute End Single 10,000 50,000 20,000 30,000 40,000 Keep Operation Absolute Keep Single 10,000 50,000 20,000 End 30,000 40,000 Continuous Operation Absolute Continuous Single 10,000 50,000 End 20,000 Operation Method Repeat Operation Positioning start Positioning stop Origin Detection when Approximate origin turns off Return to OriginPOSORG Rising edge ↑Origin return method This is the method using the approximate origin signal only Origin Detection by approximate origin Speed Override CommandPOSSOR Rising edge ↑ JOG Operation Posjog Level input External Input Stroke High/Low Limit Point Error and Output Prohibition Positioning parameter Backlash Compensation Amount Bias SpeedSpeed Limit Origin return parameter ② Origin return-Low speedDwell Time DOG Positioning parameter Operation Mode is divided into following three kinds Usage of Various Functions Usage of Various Functions Instructions Positioning Indirect startPOSISTPosist Positioning Indirect Start Instruction Available device JOG OperationPOSJOG Positioning Indirect Start Available device Instruction Positioning Control InstructionPOSCTR PosctrControl instruction designation Current position preset Posprs Current position preset Instruction Available devicePreset value designation Posprs PWM output PWM PWMSV1 SV2 Speed control operation Posvel PosvelSpeed control operation Instruction Available device Speed override Possor PossorSpeed override instruction Instruction Available device Ch. for speed override0~1 SV Speed 5 ~ 100,000pps Positioning direct startPOSDST Posdst Return to originPOSORG PosorgReturn to origin Instruction Available device Usage of Various Functions Flag list and Error codes Flag listDevice Function Description 101 Error code Error ConditionCorrective action Code 103 H48 Wiring with stepping motor driverDC Wiring with stepping motor driver DC Wiring with servo motor driverMR-J2/J2S-A K7M-DRT**U Wiring with Servo motor driverFDA-5000 AC Servo Driver SSR Dedicated Protocol Communication Communication FunctionsIntroduction Communication Functions System configuration method Connecting system configuration link between MASTER-K’s Pmulgis PMU Pin assignment and direction Pin no Signal Communication Functions Frame Structure Base Format Sequence of command frame EOT BCCETX BCC Communication Functions List of commands Communication Functions Data type PX000, %MX000, %LX000, %KX000, %CX000, %TX000, %FX000 Byte Communication Functions Execution of commands Individual reading of deviceRrSS Response format ACK response Response format NAK response Continuous readingRrSB of device Wordw EOT Blocksetting can be repeated up to max blocks Explanation Individual writing of deviceWwSS NAK H00FF EOT BCC Continuous writing of deviceWwSB H10 Format name Header Station Monitor registerX## RSSBlockmax blocks ② Continuous reading of device RSB H06 H3130 H5878 H3039 H03 RSS Monitor executionY## Command Registration Error code Tail Mode Bit Local Remote Connection Reading PLC StatusRSTPause Debug 3041 5272 5354 31313332 G7E-DR10A Parameter setting Cuec Communication Functions Flag related with operating status Normal RUN Pause Debug Example Protocol Mode ④ Set parameters as the following table Communication Method Communication Functions Communication Functions Communication Functions Error code Error code Error type Error condition and causes Treatment Parameter Setting Setting Communications ParameterUser Defined Protocol Communication Setting frame VTH0B Communication Functions FFH0C CRH0D SOH0E SUM XORMUL Communication Functions Type setting Kinds Value of sum check Last transmitting frameAscii Type Hex Type 05 31 32 33 34 04 30 Ascii Type Hex Type 05 31 32 33 34 04 36 Communication Functions Communication Functions Instruction User defined communication instructionSNDCOMExample of program Sndcom Example of Usage Communication Functions Communication Functions Communication Functions Setting and program of slave station Communication Functions Communication Functions Communication Functions Communication Functions Basic Specification Ascii modeRTU mode Modbus Protocol Communication Address area Function code areaData area LRC Check/CRC Check area Size of using data Function code types and memory mappingModbus addressing rules H5000 Area Areacurrent value area H6000 Parameters Setting Map of wiringSetting communication parameter PLC Communication Functions Instruction and example Modbus communication instructionMODCOMModcom Remark Example program Coil Status Input Communication Functions No Protocol Communication Sending DataReceiving Data Parameter setting Error flag turns on, when designating area is over Communication Functions InstructionsNo protocol receiveDRCV Drcv No protocol sendDSND Dsnd Communication Functions Examples Communication Parameter Setting Program Remote connection and communication I/F module Remote connectionRemote connection by built-in Cnet I/F Remote connection by modem Remote connection by Fnet I/F module Master Slave Wiring Example RS-422 I/F Usage of G7L-CUEBUsage of G7L-CUEC OFF Must be off Wiring Example RS-485 I/F Usage of G7L-FUEA/RUEARDB SDA SDB SG Master Slave Usage of G7L-PBEA/DBEA Installation Installation EnvironmentPrecautions during installing Environment requirements Power consumption block diagram of PLC systems Power consumption of each partPower Input Supply Part Handling Instructions Main unit or Expansion Module handling instructions Mounting instructions OUTOutput part COM OUT 100mm or more Heat generating device Installation and Wiring Connection of expansion module Wiring Power Supply WiringPower Main circuit Device ※ T1,T2 constant voltage transformer Input and Output Devices Wiring Input Installation and Wiring Grounding Cable Specifications for wiring Maintenance and Inspection Daily InspectionLED ERR LED Periodic Inspection 10-2 Basic Procedures of Troubleshooting Troubleshooting Yes Kglwin Turn the power unit off and on Is RUN LED off? Contact the nearest service center11-4 Measure the voltage of power supply in P40 11-5 11-6 11-7 Troubleshooting Questionnaire Troubleshooting Examples Input circuit troubles and corrective actions Output circuit troubles and corrective actions 11-10 Surge current of 10 times or more when turned on Transistor 1/3 to 1/5 rated current flow Destroyed11-11 Error code List 11-12 Error CPU state Message Cause Corrective Actions Code 11-13 Appendix 1 System Definitions Option Editor option Appendix 1 System Definitions Basic Parameters Appendix 2 Flag List Special relay FAlways Off Operation error flag Operation error flag LatchOverflow error flag Relay Function F0040 to F005F Internal relay M Data relay D App2-4 App2-5 App2-6 App2-7 Clock data Relay Description App2-8 Appendix 3 External Dimensions Extension moduleStandard type 95 105 App3-1 Appendix 3 External Dimensions