External I/O Numbers | Hitachi NJI-350B guide

Chapter 6 I/O Specifications

6.2 External I/O Numbers

When starting an operation of the MICRO-EH, a user program is executed (scanned) after the input refresh processing (receiving external input data) is performed. Operations are performed according to the contents of the user program, and the next input refresh processing and output refresh processing (operation results are reflected in the external output) are performed. After that, the next user program is executed (scanned). This series of operations is continually repeated until the operation is stopped or until a problem occurs in which the operation can no longer continue.

When the operation is stopped or if a problem interrupting the operation occurs, the CPU performs output refresh processing making all output data as off data and then stops the operation, regardless of the execution status of the user program.

Figure 6.1 shows a diagram outlining this series of operations.

Input refresh processing	Input refresh processing	Output refresh processing
		Time

RUN start

Execute (scan) user program	System processing
Output refresh processing (off data)
		Time

RUN stop

Execute (scan) user program

Figure 6.1 Overview of user program execution and refresh processing

The user programs are executed in sequence, normally beginning with the program in the beginning of the scan area till the last program, or until the END instruction. Then, I/O data is refreshed prior to the execution of the next user program. As shown above, external I/O data is updated in batch mode in the refresh processing after the user program is executed. If it is necessary to update (refresh) the I/O data while the user program is being executed, use the refresh instruction. When designing a system, take into account the above refresh operation from when the input data is received and operated until output data is obtained.

6-3

Image 199

Hitachi NJI-350B manual External I/O Numbers, Shows a diagram outlining this series of operations

Contents

Application Manual Page Limited Warranty and Imitation of Liability Page Safety Precautions Required Prohibited Page Table of Contents Memory Size and Memory Assignment Input/Output SettingHigh-Speed Counter Single-Phase High-Speed Counter Two-Phase Counter Error Display and Actions Connecting to the PortsSyntax and Assembler Error Codes Operation Error Codes Memo Compliant with overseas specifications as standard Remote maintenance through modem connectionEasily adjustable potentiometer Maintaining programs without a battery Memo System Overview Device name Description 23,28-point type system configuration diagram General Specifications Chapter Function and Performance Specifications WR, DR Function SpecificationsTimer counter is provided internally Device that has been connected Is running, operation stops and the outputs are aborted OFF Off to stop operation R7EC General purpose port Interrupt input Calculation Specifications Performance Specifications OFF → on Input SpecificationsCircuit diagram Specification Y100 of EH-*23DRP/A23DRT/*28DRP/*28DRT Output Specifications Ms max 24 V DC 0.2A Output specification Maximum Circuit Load current Common Output Load current Common OutputMs max 24 V DC 0.2A Response time Number of output points See Chapter Number of common At 1 cycle or less/common Externally supplied powerMs max Maximum Circuit A 240 V AC Load current Common Point and 28-point type 10/14/28-point Relay Output High-Speed Counter SpecificationsPWM Output/Pulse Train Output Specifications Analogue Input Specifications Module type Points type module Analog exp. unit Analogue Output SpecificationsCircuit diagram 23 points type Circuit diagram Analog expansion unit Expansion Potentiometer Analogue Input SpecificationsInterrupt Input Specifications Backup Clock Function Power Supply for Sensor Product lineup Others Model Name and function of each part Type 10-Point Basic UnitDetailed explanation Remarks EH-*14 14-Point Basic Unit EH-*23 EH-*28 23-Point and 28-Point Basic UnitTo the right Name and function of each part Expansion Unit Power supply 24V DC Load power supply 24V DC 100-240V AC Terminal Layout and WiringRUN Input AC power supply 100-240V AC Load power supply 24V DCDC power supply 24V DC AC power supply Power supply 24V DC Output Load power supply 12/24V DC Power supply 24V DC 12/24V DC Output Load power supply 12/24V DC Power supply 24V DC WRF06E Output Power supply 24V DC Output Power supply 100-240V ACPower supply 24V DC Output 100-240V AC Input Output Output Power supply24V DC 12/24V DC Load power supply 24V DC, 100-240V AC Output Input Output Power supply 100-240V AC OC6 VO6 IO7 EH-D6EAN Example of current input and current outputCurrent input ⋅ IO6 OC7 VO7 Type Weight Weights and Power Consumption100V AC 264V AC 24V DC Normal Rush 140 150 Exterior Dimensions Memo List of Instructions Instruction ClassificationsInstruction classification table Description Type RES TD, SS, CU, CTNand TD, SS, CU CTU, CTD, CL Basic instructions timer, counter WX, WY, WR Basic instructions relational boxDX, DY, DR Item number Ladder symbol Instruction symbol DR, DM BCDWR, WM Number Instruction symbol Process descriptions WY, WR, WM Instruction symbol Process descriptions Name BCD → Processing time when n=1WM, TC FUN instructions BOX PWM Instruction Specification Details Bit Word Double word Constant Usable I/O Item numberLadder format Condition code Remark Contact serial connection AND, ANI Basic instructions-3ANI ORI Basic instructions-5Contact parallel connection OR, ORI Condition Not Basic instructions-7Negation not Instruction format Number To 511 Decimal Basic instructions-8Leading edge detection and DIF, or DIF DIF n Trailing edge detection and DFN, or DFN Basic instructions-9DFN n Usable I/O Other Bit Word Double word Word Double word Constant Other Usable I/O BitWX WY WM DX DY TD, SS Upper case MCS Set start/reset cancel master control MCS, MCRBasic instructions-13 Remark MPP Ladder formatMPS MRD Logical block serial connection ANB Basic instructions-18See Function column Logical block parallel connection ORB Basic instructions-19 Indicates the start and end of the processing box Basic instructions-20Processing box start and end Processing BOX Bit Word Relational box start and end Relational BOX Basic instructions-21Function Indicates the start and end of the relational box Basic instructions-22 On delay timer on Delay TimerOUT TD n t s Time chart TMR, CU Basic instructions-23Single shot Single Shot OUT SS n t s SS11 is turned on at the leading edge of X00001 again, SS11 turns off when set value ≥ progress valueProgress value is updated Conditions are ignored because it uses edge trigger Counter number To 255 Decimal Set value To 65535 Decimal Basic instructions-24Counter Counter OUT CU n s Ignored X00005 CL15 CU15 Set value Progress Value CU15 TC15 UP/DOWN Counter CTU17 Counter number To 255 Decimal Basic instructions-27Counter clear Counter Clear OUT CL n s Word Double word Condition Steps Command formatDouble word LD, and s1S==s2 Or s1S==s2 26.8 Lower case DW When WR0000 ≠ WR0002, R003 turns onBasic instructions-30 Relational box Relational BOX Double word LD, and s1Ss2 Or s1Ss2 BOX S1 s2 Steps When WR0000 WR0002, R005 turns onBasic instructions-32 Word See Notes 37.5 Double word Off When DR0000 DR0002, R006 turns on signedBasic instructions-33 SignedRelational box Signed Relational BOX S1 = s2 When WR0000 ≤ WR0002, R007 turns onBasic instructions-34 ≤ Relational box ≤ Relational BOX Double word LD, and s1S=s2 Or s1S=s2 See following table Arithmetic instructions-1Substitution statement Assignment Statement = s Substituted into WR0000 at the leading edge of input X00001Designated by WR0000 + WM000 Substitution destination Augend Addend Arithmetic instructions-2Binary addition Binary Addition Word Double word 115 Lower case DW Arithmetic instructions-3Word 177 Double word Positive Negative Arithmetic instructions-4Binary subtraction Binary Subtraction Substitution destination Minuend Subtrahend Word 163 Double word Arithmetic instructions-5BCD subtraction BCD Subtraction 104 Lower case DW Substitution destination Multiplicand Multiplier Arithmetic instructions-6Binary multiplication Binary Multiplication Word 112 Double word Word 447 Double word Arithmetic instructions-7BCD multiplication BCD Multiplication 164 Lower case DW 143 Signed binary multiplication Signed BinaryMultiplication = s1 / s2 Word 110 Double word Arithmetic instructions-9Binary division Binary Division = s1 / s2 152 Lower case DW Arithmetic instructions-10BCD division = s1 B/ s2 101 Arithmetic instructions-11Signed binary division = s1 S/ s2 Upper case B Arithmetic instructions-12Logical or = s1 or s2 = s1 and s2 Bit, word Double word Arithmetic instructions-13Logical = s1 and s2 = s1 XOR s2 Bit, word Double word Arithmetic instructions-14Exclusive or = s1 XOR s2 = s1 == s2 Is a word Is a double word Arithmetic instructions-15= Relational expression = s1 == s2 = s1 S== s2 Is a double word Signed = Relational expression= s1 S== s2 108 = s1 s2 Arithmetic instructions-17= s1 s2 Is a word Is a double Word Bit Double word = s1 S s2 Signed Relational expression= s1 S s2 Is a double word = s1 s2 Is a word Is a double word Arithmetic instructions-19 Arithmetic instructions-20 = s1 = s2 Is a word Is a double word Arithmetic instructions-21≤ Relational expression = s1 = s2 = s1 S= s2 Signed ≤ Relational expression= s1 S= s2 Is a double word Bit location to be set Constant is set Decimal Application instructions-1Bit set Bset d, n Application instructions-2 Bit resetBres d, n Bit test Application instructions-3BTS d, n Also, the 20th bit of DR0104 is checked by BTS Also, the 20th bit of DR0102 is reset to 0 by Bres After execution Application instructions-4Shift right SHR d, n DIF1 Shift left Application instructions-5SHL d, n Rotate right Application instructions-6ROR d, n Rotate left Application instructions-7ROL d, n B31 DR0002 Logical shift right Application instructions-8LSR d, n If d is a word Application instructions-9Logical shift left LSL d, n BCD shift right Application instructions-10BSR d, n BCD shift left Application instructions-11BSL d, n If n is a word Application instructions-12Block transfer Move Below Words of data are transferred Below Copy d, s, n Application instructions-13Copy Copy d, s, n Default value H2020 is set in the range of WR0100 to WR01FE XCG d1, d2, n Application instructions-14Block exchange Exchange R7F4 R7F3 R7F2 R7F1 Application instructions-15 Reverses the contents of dTo be reversed To take complement Application instructions-16Twos complement Negate NEG d ABS d, s Word Double word Application instructions-17Absolute value ABS d, s BIN Application instructions-18Binary → BCD conversion Before conversion BCD Application instructions-19BCD → Binary conversion After conversion BIN Before conversion 105 115 195 317 481 829 1586 Application instructions-20Decode Average Encode Application instructions-21128 187 126 Bit count Application instructions-22Number of bits set to That counts the bits Set to Swaps the upper 8 bits and lower 8 bits contained in d Application instructions-23Swap Swap d Unity result write Destination I/O When n=0, it is not executed When n5, it is not executedApplication instructions-24 Unit Input Point type Output Application instructions-25 When n=0, it is not executedDistribute X01001 DIF0 Dist WR0000, WX0000 LD X00001 and DIF0 Instruction for use Control instructions-1Normal scan end 714 101 102 Special internal output Error code Error description Code number To 255 Decimal Jump condition Control instructions-4Conditional jump CU, CT Nesting of JMP instructions is allowed Syntax of JMP, Cjmp104 WRF001 H0001 Duplicate definition of LBL Control instructions-5Label LBL n 106 Control instructions-6Code number To 49 Decimal For the instruction instruction, see Next n Next Control instructions-7107 108 Syntax of for to Next 109 WRF001 H0004 Duplicate definition of SB H0013 SB undefined Control instructions-9Start subroutine program SB n RTS RTS DER ERR111 To 27 Decimal Control instructions-11Start interrupt scan program Interrupt To 2 , 16 to 19 End interrupt scan program Return Interrupt Control instructions-12113 Nesting of subroutines is allowed up to 5 levels Syntax of SB n, RTS, INT n and RTI114 Usable I/O Others Baud rate Value +C H0000 +A Data length Byte +B H80 †† ††=Start code 118 DIF0 Sample programR7E3 WR0 Name Description Countermeasure TRNS/RECV command return code table Recv 0 d, s, t Transfer command-2064 122 123 124 General purpose port switchingFUN instructions-1 Argument Argument dummy FUN instructions-2Refresh All points 432 Input type FUN instructions-3Refresh Input/output 244 127 128 Argument Counter Number, operation Control value FUN instructions-5High-speed Counter Operation Control 147 Argument Counter Number, output Instruction FUN instructions-6High-speed Counter Coincidence Output Control 138 131 Rewrite the count value of the counter No to High-speed Counter Current Value ReplacementArgument counter Number Replacement value Storage area FUN instructions-8 Argument counter Number Current value storage Area FUN instructions-9High-speed counter current value reading 132 134 135 High-speed counter presetFUN instructions-11 162 136 137 173 FUN instructions-13138 139 Argument Pulse output Number FUN instructions-14Pulse output control 149 141 Pulse frequency output setting changesFUN instructions-15 217 142 143 FUN instructions-16Pulse output with acceleration/deceleration 919 144 145 146 Usable I/O classifications and point types Type Assignment Point I/O Assignment External I/O Numbers Shows a diagram outlining this series of operations Data type Numbering convention Example List of external I/O classification and data typeClassification Data type Remarks List of I/O number conventions for external I/O WM0 Internal Output NumbersWR0 DR0 Flash Lists the programming specifications for the MICRO-EHMemory Size and Memory Assignment Sram Following methods are used to create the user programs Programming Devices WVCB02H WPCB02H System configuration using a personal computerProgramming Methods Ladder Editor On-line On-direct Out-line of opera-ting procedure Situation PointList of procedures for creating a program Modify Test operation, adjustment Size of one circuit Example when using a processing box Example when using loop symbols Program Transfer WRF06B WRF01AWRF03C WRF03D Change individual setting Store the settings in the memory Initial Setting for Special Input/Output FunctionInput/Output Function Operation mode list Operation Mode Special internal output for setting detailed function Input/Output Setting „ Example Y100 Group „ Mode setting Y101 Y102 Group 2 Group„ In/output setting „ Outline Counter output Pulse / PWM Output adjustmentSpecial Output Operation in CPU Stop Status R7FC toR7FF Operation of Single-Phase Counter High-Speed Counter Single-PhaseBasic operation Current value clear instruction operation Preload input operation Setting of Single-Phase Counter WRF059 Counter At abnormal settingIndividual counter setting WRF058 Counter Operation of Two-Phase Counters High-Speed Counter Two-Phase CounterPhase counting mode ↓ Falling edge Low ↑ Rising edge High High ↓ Falling edge ↑ Rising edge High ↓ Falling edge High↑ Rising edge Low High ↓ Falling edge Low WRF076 Setting of Two-Phase CounterDiagnostic error WRF072 Bit Description WRF058 Two-phase counter Operation of PWM Output PWM Output Setting the PWM output frequency Setting the PWM OutputSetting the PWM output on-duty value WRF059 PWM output WRF05A PWM output Setting abnormalityIndividual PWM output setting WRF058 PWM output Operation of Pulse Output Pulse Train Output Number of output pulses for pulse output Setting of Pulse OutputSetting the pulse output frequency Setting the number of output pulses WRF058 Pulse output Individual setting of pulse outputsWRF059 Pulse output Input sampling number Interrupt InputDigital Filter Interrupt input correspondence table Terminal INT No Potentiometers Analogue Output Analogue Input Sw3 Sw4 Range Remarks Sw6 Conversion mode RemarksAnalogue Expansion unit Sw1 Sw2 Range Remarks Input on Switch Stop orSpecification. a 10-point type CPU becomes RUN mode when the RUN input is On Program classification Description Expression RUN Start Definition and operation Normal Scan Scan time Congestion check time Causes of congestion errors at normal scanRTI RTI INT0INT0 Periodical Scan 10 Congestion error at periodical scan 10 ms Interrupt Scan Continuation of operation after a congestion errorStop Interrupt contact on Congestion check time Scan Program execution Interrupt contact on INT16 INT17 INT18 INT27 Relationship of Each Scan TypeList of interrupt label Interrupt label Cause of startup Conditions for performing program change while running Online Change in RUNCPU Halt time RUN OFF Instantaneous Power FailurePowering on Instantaneous power failure actions Operation Parameter Function Description When to use the function Test Operation Forced Set/ResetForced Output Mounting to a DIN rail InstallationInstallation location and environment Installing the unit 10-2 Separation of the power system Wiring10-3 Unit Screw Clamping Wiring to the power module10-4 10-5 Wiring to the input terminals DC input AC input Transistor output Source type Wiring to the output terminals Relay outputTransistor output EH-*XXDT 10-7 Life characteristics 125 V AC 10-8 Wiring to the unit terminals Ascii Communication port specificationPort function Port Remarks Off H8000 Transmission procedure 4800 bps11-2 11-3 Port 2 specificationsSetting port Bit WRF03D Initial value 11-4 General purpose port Port 1,21n station communication on RS-485 Port 2 hardware AT Commands ConfigurationModem Control Function Number format Word format List of commands extractCommand Function overview Example Register Set value Function 11-7 Sequence Port Connecting to the Ports Connection for 1n station communication by RS-485 11-9 Case of RS-422 11-10 Error Codes Failure detection Error Error name ClassifiCode Detection timing Cation R7CF INT Syntax and Assembler Error CodesLBL For Cjmp Operation Error CodesCAL JMP R7CE Name Meaning Description Setting Resetting ConditionBit Special Internal Output Area R7CB 12-6 12-7 WRF07C WRF07D WRF07E List of special internal outputs that can be storedSpecial internal output Function That can be stored WRF07B 12-9 Setting Resetting Condition12.5 Name Storage data 12-10 Name Storage data Description Setting Name Stored data Description PI/O function Individual setting Request12-11 12-12 Name Stored data Description Setting Resetting 13-1 Error Display and ActionsLadder Editor 13-2 Error code Error name Corrective action Process flow when an error occurred is shown below13-3 13-4 13-5 Checklist when Abnormality Occurred CPU LED, I/O LED Procedures to Solve Abnormality13-6 13-7 Power supply check 13-8 13-9 13-10 Data cannot be entered Assignment error is generated, but data is read13-11 13-12 13-13 Assignment error occurred, but output is normal CPU operates, but output signals are not detected13-14 13-15 13-16 14-1 Operation verification proceduresPeripheral unit name Form Detailed operation example 14-2 E P 1 Starting the Ladder Editor for Windows 14-3 Select H-302 for the CPU type settingE P 2 Initialization Menu bar 14-4 Assign in the Menu bar 14-5 Setting from the I/O Assign List 14-6 Setting from the Slot Setting Status Click the OK button. The dialogue closes E P 3 Program Input14-7 14-8 Click the OK button in the Processing Box M, Y, TD, SS, WDT, MS, TMR, CU, RCU, CTU, CTD, CL Input I/O No., time base, and the first setting value14-9 Click the circuit write icon Tool bar Input comparison expression and comment Click the OK button14-10 14-11 E P 4 Checking Program Errors 14-12 E P 5 Saving the Program 14-13 E P 6 Program Transfer to CPU 14-14 Click File → CPU write in the Menu bar I/O Monitor dialogue box is displayed E P 7 Monitoring Verifying the Operation14-15 14-16 Click the icon in the Symbol barI/O monitor can be specified in the following two ways Monitor and display 16 points from Y100 Items for daily inspection Normal status Main cause of errorLife of the power module Daily inspection How to replace the battery Life of the battery15-2 Not LDIANI ORI EH-150 200 250 252 2000 2002 4010 700 1002 300 702 302 Arithmetic instructions Instruction Instruction name Free Application instructions 2/2 Instruction Instruction name FUN instructions 1/5 Instruction Instruction name FUN instructions 2/5 Instruction Instruction name FUN instructions 3/5 Instruction Instruction name FUN instructions 4/5 Instruction Instruction name FUN instructions 5/5 Instruction Instruction name Standards Appendix 2 Standards