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4-1

Program Addresses and Memory Capacity

Instructions vary in length from 1 to 17 bytes. Since each instruction requires one
address, the maximum number of addresses available in a program also varies.
The instructions along with the corresponding number of bytes required for each
are listed in

Appendix C Programming instructions

.

The memory capacity available for the program is 4K and hence the approxi-
mate maximum number of instructions which can be programmed is 524(based
on an average length of 8 bytes per instruction).

4-2

Operating Modes

Any one of three modes, RUN mode, MONITOR (debug) mode, or PROGRAM
mode, can be selected in this Unit.

RUN Mode

Only executes the program. Programming Devices cannot be connected in this
mode, and the Unit scans and processes the program at high-speed. Select this
mode for normal operation.

MONITOR Mode

Executes the program. Execution of the program is possible while Programming
Devices are connected. The processing time is longer than that in RUN mode,
because of the time required to process transmissions to and from the Program-
ming Device. MONITOR mode is mainly used to debug new programs. Refer to
the following pages in this section for information about operations that can be
performed online in MONITOR mode.

PROGRAM Mode

Does not execute the program. Normally used to transfer or compare the pro-
gram. Refer to the following pages in this section for information about opera-
tions that can be performed online in PROGRAM mode.

4-3

Changing the Operating Mode

The program can be transferred to the Ladder Program I/O Unit only when it is in
PROGRAM mode. The table below shows the mode which the Unit will enter
when the Unit is turned on or reset. The operating mode is controlled by the set-
tings of pin 5 of the back panel DIP switch, switch 4 on the front of the Unit, and
the status of the PC.

SW4

PC in RUN or MONITOR mode

PC in PROGRAM mode

Pin 5 ON:

Independent

Operation

Pin 5 OFF:

Linked

Operation

Pin 5 ON:

Independent

Operation

Pin 5 OFF:

Linked

Operation

Up

RUN

RUN

RUN

PROGRAM

Center

MONITOR

MONITOR

MONITOR

PROGRAM

Down

PROGRAM

RUN

PROGRAM

PROGRAM

4-3-1 Linked Operation

The operating mode of the Unit is linked to the operating mode of the PC. After
the operating mode shown above is entered when the Unit is turned on or reset,

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Содержание C500-LDP01-V1

Страница 1: ...C500 LDP01 V1 Ladder Program I O Unit Operation Manual Revised January 1992...

Страница 2: ......

Страница 3: ...lized in this manual The word Unit is also capitalized when it refers to an OMRON product regardless of whether or not it appears in the proper name of the product The abbreviation Ch which appears in...

Страница 4: ......

Страница 5: ...0 1 1 1 2 1 2 1 3 2 2 2 4 12 2 1 56 7 02 5 1 8 1 1 7 5 2...

Страница 6: ...certain switch settings affect indicator opera tion These switch must be set before mounting and operating the Unit Section 3 describes the data areas available for use in programming the Unit Section...

Страница 7: ...02 4 8 02 3 3 3 8 8 3 4 3 3 4...

Страница 8: ...ation Of the 16 DC inputs 8 inputs 2 groups of 4 can be set for high speed inputs with a minimum pulse width of 0 5 ms so inputs shorter than the scan time can be detected The Unit connects to the PC...

Страница 9: ...0100 through 0115 The PC cannot access the Unit using the I O WRITE and the I O READ WRIT 87 READ 88 instructions 2 words 16 PC output bits 0000 through 0015 16 PC input bits 0100 through 0115 With t...

Страница 10: ...nector Connector for 24 VDC power supply input Use connector provided RS 485 interface connector Connector for the GPC FIT or LSS Use one of the following cables 3G2A2 CN221 2 m C500 CN523 5 m C500 CN...

Страница 11: ...8 9 4 8 8...

Страница 12: ...UN MONITOR debug or PROGRAM mode depending on the setting of SW4 The same process occurs when the power is turned on SW 3 Display selector Select indicator operation with this selector Refer to the fo...

Страница 13: ...when external input bits 0200 through 0203 are set for high speed inputs Pin 3 of the DIP switch is turned on 6 High speed input 2 is set Lit when external input bits 0204 through 0207 are set for hig...

Страница 14: ...s 0200 to 0207 0 0200 Lit while corresponding input is ON 1 0201 2 0202 3 0203 4 0204 5 0205 6 0206 7 0207 6 Indicate the status of external input bits 0208 to 0215 0 0208 Lit while corresponding inpu...

Страница 15: ...ate the year of the clock 0 8 x 101 The last two digits of the calendar year are displayed Data 00 to 99 1 4 2 2 3 1 4 8 x 100 5 4 6 2 7 1 A Indicate the month of the clock 0 Data 01 to 12 Indicators...

Страница 16: ...ta 00 to 59 minutes Indicator 0 is always OFF 1 4 x 101 2 2 3 1 4 8 x 100 5 4 6 2 7 1 E Indicate the seconds of the clock 0 Data 00 to 59 seconds Indicator 0 is always OFF 1 4 x 101 2 2 3 1 4 8 x 100...

Страница 17: ...d inputs A pulse width of 0 5 ms or longer can be received 4 Independent Operation Linked Operation 5 Function OFF Operates in the same mode as the PC when the PC is in RUN or PROGRAM mode but won t e...

Страница 18: ...8 3 8 02 5 02 5 8 02 2 2 3 0 5 0 1 1...

Страница 19: ...t bits as seen from the PC IR 01 Output bits as seen from the Unit Cannot be used as work bits The use of these bits depends on the setting of pin 2 of the back panel DIP switch Refer to following sub...

Страница 20: ...Input Output 00 Output bit 00 Input bit 00 00 Input bit 00 Output bit 00 01 Output bit 01 Input bit 01 01 Input bit 01 Output bit 01 02 Output bit 02 Input bit 02 02 Input bit 02 Output bit 02 03 Out...

Страница 21: ...I O Read End I O Write End I O Read OK and I O Write OK Flags to 0 OFF Bit 0103 the I O Read OK Flag is turned ON when data has been transferred correctly with the WRIT 87 instruction It remains ON u...

Страница 22: ...8 00 08 00 08 01 09 01 09 01 09 01 09 02 10 02 10 02 10 02 10 03 11 03 11 03 11 03 11 04 12 04 12 04 12 04 12 05 13 05 13 05 13 05 13 06 14 06 14 06 14 06 14 07 15 07 15 07 15 07 15 Word 08 Word 09 Wo...

Страница 23: ...lay Bits TR 0 through TR 7 can be used to store execution conditions at branches in lad der diagram programs 3 5 TC Timer Counter Area TC 00 through TC 15 can be used to define timers and counters in...

Страница 24: ...Configuration in DM 060 to DM 127 Word Bits 8 to 15 Bits 0 to 7 DM 060 Minutes 0 to 59 Seconds 0 to 59 DM 061 Date 1 to 31 Hour 0 to 23 DM 062 Calendar year last two digits 00 to 99 Month 1 to 12 DM...

Страница 25: ...transmissions to and from the Program ming Device MONITOR mode is mainly used to debug new programs Refer to the following pages in this section for information about operations that can be performed...

Страница 26: ...en press and release switch 5 The Unit will enter PROGRAM mode If switch 3 is set to 0 indicator 2 will light Note 1 The operating mode cannot be changed from PROGRAM mode to MON ITOR mode or RUN mode...

Страница 27: ...Yes Yes 1 I O Table Generating No No Comparing No No Reading No No 2 User program t f PC memory clear No Yes g transfer Transfer GPC to Unit No Yes Transfer Unit to GPC Compare Yes Yes 3 DM area t f...

Страница 28: ...lear No Yes Search Yes Yes I O comments Yes Yes Line comments Yes Yes Memory display Yes Yes I O Monitor Operations Operation MONITOR PROGRAM Force Set Reset Yes Yes Basic Screen Function Keys Functio...

Страница 29: ...8 4 6 6 02 8 2 4 12 2 1 56 7 02 02...

Страница 30: ...de Initialization Overseeing processes Program I O refresh Ladder Program I O Unit scan execution MONITOR Mode Programming Device servicing Note In MONITOR mode data is transferred between the Ladder...

Страница 31: ...when pin 2 is ON because of the time required to execute WRIT 87 and READ 88 but these instructions allow a large amount of data to be transferred all at once 2 When WRIT 87 is executed during the I O...

Страница 32: ...OR LD 5 3 750 2 500 OUT 14 11 250 6 875 OUT NOT 14 6 875 11 250 TIM 6 126 875 When reset When interlocked Min Constant for SV 112 500 145 000 Max Word for SV 148 750 CNT 6 111 875 When reset When inte...

Страница 33: ...en shifting a word 85 625 When reset When interlocked Max When shifting DM 89 375 29 375 26 875 ASR 26 10 Min When shifting a word 85 625 When reset When interlocked Max When shifting DM 89 375 29 375...

Страница 34: ...rd to a word 228 125 When reset When interlocked Max When decoding TC to DM 495 000 29 375 26 875 DMPX 77 10 Min When encoding a word to a word 300 625 When reset When interlocked Max When encoding TC...

Страница 35: ...N OFF ON OFF Output signal Minimum I O response time Output ON delay Input ON delay Unit reads input signal Maximum I O Response Time The Unit takes the longest to respond when it receives an input si...

Страница 36: ...e input bit 3 If the input is OFF during the I O refresh period the high speed input buffer is turned OFF after status has been read If the input is still ON the high speed input buffer remains ON at...

Страница 37: ...3 8 4 8 4 3 5 1 8 1...

Страница 38: ...Incorrect RAM verified when power is connected or at reset time Failed RAM Replace Unit Incorrect EEPROM write Unable to write program to Unit Replace Unit Pin 1 6 7 or 8 set incorrectly Pin 1 6 7 or...

Страница 39: ...125 V 2 A 5 2 mm dia x 20 mm Replace fuses according to the following procedure 1 2 3 1 Disconnect the PC power supply 2 Remove input and output connectors 3 Remove the Unit from the Backplane 4 Remo...

Страница 40: ...Model No Ladder Program I O Unit C500 LDP01 V1 GPC Main unit 3G2C5 GPC03 E 3G2C5 GPC04 E System Memory Cassette C500 MP303 EV2 FIT FIT10 SET11 E LSS 3 1 2 FD 720 KB 4 floppy disks C500 SF312 EV2 5 1 4...

Страница 41: ...s 16 total Timer 0 to 999 9 s accuracy 0 0 1 s TC 00 to TC 15 Counter 0 to 9999 counts TR bits 8 total TR 0 to TR 7 SR flags and bits 16 total 1208 to 1307 Data memory 128 words DM 000 through DM 127...

Страница 42: ...time Maximum 0 5 ms Number of circuits 16 points 8 common 2 circuits High speed input 8 input bits 0200 to 0207 when pins 3 and 4 of the DIP switch are set to ON 0 5 ms minimum pulse width Circuit con...

Страница 43: ...ts Fuse 2 A 125 V 5 2 mm dia x 20 mm GG92 External power supply 4 5 to 26 4 VDC minimum 50 mA Circuit configuration 10K 12K 2A fuse Internal circuit 4 5 to 26 4 VDC OUT 00 to OUT07 COM 1 4 5 to 26 4 V...

Страница 44: ...rs During assembly connect external inputs and outputs using the connectors included Although I O connectors are identical in shape the connections differ Be certain to follow the labels when connecti...

Страница 45: ...5 OUTPUT OUT 14 OUTPUT NOT OUT NOT 14 TIMER TIM 6 00 NO OPERATION NOP 1 01 END END 6 02 INTERLOCK IL 5 03 INTERLOCK CLEAR ILC 2 04 JUMP JMP 3 05 JUMP END JME 3 10 SHIFT REGISTER SFT 6 11 KEEP KEEP 17...

Страница 46: ...Manual for details Indirect addressing is not possible for the Ladder Program I O Unit Prefix Item Word address Bit address None indicated with IR prefix PC output bits IR 00 IR 0000 to IR 0015 PC inp...

Страница 47: ...B IR SR Work bits TC TR LOAD NOT LD NOT B Defines the status of the inverse of bit B as the execution condition for subsequent operations in the instruction line B IR SR Work bits TC AND AND B Logical...

Страница 48: ...UNTER CNT CNT N SV CP R A decrementing counter SV 0 to 9999 CP count pulse R reset input The TC bit is entered as a constant N TC SV IR SR Work bits TIMER TIM TIM N SV ON delay decrementing timer oper...

Страница 49: ...t IR00 and IR02 Work bits REVERSIBLE COUNTER CNTR 12 II DI R N SV CNTR 12 Increases or decreases the PV by one whenever the increment input II or decrement input DI signals respectively go from OFF to...

Страница 50: ...cept word 12 DM BCD TO BINARY BIN 23 BIN 23 S R Converts 4 digit BCD data in source word S into 16 bit binary data and outputs converted data to result word R S x100 x101 x102 x103 x160 x161 x162 x163...

Страница 51: ...ork bits except word 12 DM BCD ADD ADD 30 ADD 30 Au Ad R CY CY Adds two 4 digit BCD values Au and Ad and content of CY and outputs the result to the specified result word R Au Ad R Au Ad IR SR Work bi...

Страница 52: ...DM R IR Work bits ex cept word 12 DM INCREMENT INC 38 INC 38 Wd Increments the value of a 4 digit BCD word Wd by one without affecting carry CY Wd IR Work bits except word 12 DM DECREMENT DEC 39 DEC 3...

Страница 53: ...t digit specifies the first digit The next digit to the left gives the number of digits to be converted minus 1 The two leftmost digits are not used S 0 to F R 00 15 S IR SR Work bits TC DM Di IR Work...

Страница 54: ...SEVERE FAILURE ALARM FALS 07 BCD MULTIPLY MUL 32 BCD DIVIDE DIV 33 BLOCK TRANSFER XFER 70 BLOCK SET BSET 71 SQUARE ROOT ROOT 72 DATA EXCHANGE XCHG 73 7 SEGMENT DECODER SDEC 78 FLOATING POINT DIVIDE FD...

Страница 55: ...mn are not executed if ER is ON All of the other flags in the following table will also not operate when ER is ON The status of these flags cannot be monitored from the Programming Device because the...

Страница 56: ...1 6 0 0 1 7 8 8 02 1 7 8 1 02 3 0 5 02 02 02 2 02 2 02 5 02 02 6 7 12 2...

Страница 57: ...3 4 6 2 1 3 0 3 4 7 02 6 7 6 02 8 2 8 0 5 7...

Страница 58: ...the manual during each revision Page numbers refer to the previous version Revision code Date Revised content 1 February 1989 Original production C500 LDP01 2 June 1989 Corrections to pages 18 22 to 2...

Страница 59: ...U S A OMRON ELECTRONICS LLC 1 Commerce Drive Schaumburg IL 60173 847 843 7900 For US technical support or other inquiries 800 556 6766 OMRON CANADA INC 885 Milner Avenue Toronto Ontario M1B 5V8 416 2...

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