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PLC是专为工业控制而开发的装置,其主要使用者是工厂广大电气技术人员,为了适应他们的传统习惯和掌握能力,通常PLC不采用微机的编程语言,而常常采用面向控制过程、面向问题的“自然语言”编程。电工委员会(IEC)1994年5月公布的IEC1131-3(可编程控制器语言标准)详细地说明了句法、语义和下述5种编程语言:功能表图(sequential function chart)、梯形图(Ladder diagram)、功能块图(Function black diagram)、指令表(Instruction list)、结构文本(structured text)。梯形图和功能块图为图形语言,指令表和结构文本为文字语言,功能表图是一种结构块控制流程图。
梯形图是使用得zui多的图形编程语言,被称为PLC的*编程语言。梯形图与电器控制系统的电路图很相似,具有直观易懂的优点,很容易被工厂电气人员掌握,特别适用于开关量逻辑控制。梯形图常被称为电路或程序,梯形图的设计称为编程。
YAMADA NDP-20BAT
YAMAHA DRCA-4 SERVO CONTROL
YAMAHA KB8-M4210-010 CPU BOARD
YAMAHA KB8-M4210-010 CPU BOARD
YAMAHA SRCX05 CONTROLLER ROBOT TWO AXIS
YAMATAKE AZBIL MGS28U-015PC1LS2AA-2-YATW MAGNEW 3000
YAMATAKE MAGNEW 3000 PLUS MGS28U-015PC1LS2AA-2-YAW FLOWMETER
YAMATAKE-HONEYWELL KIX18B-M11X25Y-XSX0XXX
YAMATO EV211F-R6
YAMATO EV211F-R6
YAMAZAKI MAZAK MV4-200W SERVO DRIVE
YARWAY 31A.131A STEAM TRAP 3/8" / 1/2"
YARWAY 963557-01 RENEWAL KIT
YARWAY 963557-02
YARWAY 968358-02 THERMODYNAMIC STEAM TRAP REPAIR KIT
YASKAWA 9VE184THTS8028DR R143 I AC INDUCTION MOTOR 5400RPM 5HP
YASKAWA ABSO CARD JANCD-MFC03-2
YASKAWA AC DRIVE CIMR-P5M45P51F
YASKAWA AC SERVO MOTOR SGMAS-04A2A21
YASKAWA AC SERVO MOTOR USADED-22-YR32
YASKAWA CACR-HR02BAB12
YASKAWA CACR-HR10BAB
YASKAWA CACR-HR10BABY5 SERVO DRIVE
YASKAWA CACR-IR30SFB SERVO DRIVE
YASKAWA CACR-SR05AC1ER SERVOPACK AC SERVO DRIVE
YASKAWA CACR-SR05B21SSY367 *FACTORY SEALED*
YASKAWA CACR-SR05BZ1SSY367
YASKAWA CACR-SR20BE12M SERVOPACK SERVO DRIVE
YASKAWA CACR-SR20BE12M-U SERVOPACK SERVO DRIVE
YASKAWA CACR-SR30BE12M-U SERVOPACK SERVO DRIVE
YASKAWA CDBR-4220B
YASKAWA CDBR-4220B DYNAMIC BRAKING TRANSISTOR
YASKAWA CIMR-AU4A0018FAA AC DRIVE
YASKAWA CIMR-F7A47P5 AC DRIVE
YASKAWA CIMR-F7U2011 NO COVER
YASKAWA CIMR-F7U4011
YASKAWA CIMR-F7U4022 INVERTER DRIVE
YASKAWA CIMR-F7U40221E ADJUSTABLE FREQUENCY DRIVE
YASKAWA CIMR-F7U40371E ADJUSTABLE FREQUENCY DRIVE
YASKAWA CIMR-F7U45P5 DRIVE
YASKAWA CIMR-F7U47P5
YASKAWA CIMR-G5M43P7 AC DRIVE
YASKAWA CIMR-P5M4018 SPEED DRIVE (AS PICTURED)
YASKAWA CIMR-P7U4015
YASKAWA CIMR-R5U4045
YASKAWA CIMR-V7CU42P24 DRIVE *NW IN A BOX*
YASKAWA CIMR-V7CU45P5 AC DRIVE 460V, 140.8AMP
YASKAWA CIRM-VU4A0002FAA FREQUENCY DRIVE
YASKAWA CONTROLLER JZRCR-XPU01B
YASKAWA CPCR-MR01C SERVOPACK SERVO DRIVE
YASKAWA CPCR-MR08C SERVOPACK SERVO DRIVE (REPAIRED)
YASKAWA CPCR-MR08C SERVOPACK SERVO DRIVE
YASKAWA CPCR-MR15C SERVOPACK SERVO DRIVE
YASKAWA CPCR-MR15H DC DRIVE
YASKAWA CPCR-MR22C SERVOPACK SERVO DRIVE
YASKAWA DRIVE CIMR-P5M43P71F
YASKAWA DRIVE CIMR-V7AA27P6 (AS PICTURED)
YASKAWA DRIVE CIMR-V7AM40P71
YASKAWA DRIVE CIMR-V7AM42P2
YASKAWA DRIVE CIMR-VU2A0004BAA
YASKAWA DRIVE CIMR-VU4A0011FAA
YASKAWA DRIVE CIMR-VU4A0023FAA
YASKAWA DRIVEPACK SERVO UNIT SGDC-50DSA
YASKAWA ELECTRIC CACR-SK16AAC
YASKAWA ELECTRIC JZNC-XRK01B-1 *NICE*
YASKAWA ELECTRIC MP2300Siec MODULE CONTROLLER PMC-U-MP23S04
YASKAWA ERCJ-HME4BA-BN ROBOT CONTROLLER
YASKAWA JAMSC-C8012 W/ DDSCR-R84H-M MEMOCON POWER SUPLY AS IS
YASKAWA JAMSC-C8130 MEMOCON POWER SUPLY
YASKAWA JANCD-MI004 REV.B CONTROL BOARD DF9201221-B0N
YASKAWA JANCD-XCP01-1
YASKAWA JEPMC-TB351 CONTROLLER
YASKAWA JRMSP-P8051 MEMOCON POWER SUPLY AS IS
5SDA09D2604
YASKAWA JRMSP-P8052 MEMOCON POWER SUPLY
YASKAWA JZNC-YPS02-E CONTROLLER BOARD
YASKAWA MEMOCON-SC DDSCR-R84H-M CONTROLLER (REPAIRED)
YASKAWA MEMOCON-SC DDSCR-R84H-M CONTROLLER w/ JAMSC-C8012 CPU
YASKAWA MEMOCON-SC DDSCR-R84H-M CONTROLLER w/ JAMSC-C8012 CPU
YASKAWA MEMOCON-SC DDSCR-U84-124 CPU MODULE
YASKAWA MEMOCON-SC DDSCR-U84-24 CPU MODULE
YASKAWA MEMOCON-SC DISCT-J1078 MODEM PLC
YASKAWA MEMOCON-SC JAMSC-B1010 I/O BUFF MODULE
YASKAWA MEMOCON-SC JAMSC-B1072-1 MODULE
YASKAWA MEMOCON-SC JAMSC-B1072-2 CPU MODULE
YASKAWA MEMOCON-SC JAMSC-B1072B-2 CPU MODULE
YASKAWA MEMOCON-SC JAMSC-B1072B-4 MODULE
YASKAWA MEMOCON-SC JAMSC-B1073-1 CPU MODULE
YASKAWA MEMOCON-SC JAMSC-B1073-2 CPU MODULE
YASKAWA MEMOCON-SC JAMSC-B1073-2 CPU MODULE
YASKAWA MEMOCON-SC JAMSC-B1074-1 I/O MODULE
YASKAWA MEMOCON-SC JAMSC-B1074-2 MODULE
YASKAWA MEMOCON-SC JAMSC-B1074-3 I/O MODULE
YASKAWA MEMOCON-SC JAMSC-B1074-4 I/O MODULE
YASKAWA MEMOCON-SC JAMSC-B1074-4V I/O MODULE
YASKAWA MEMOCON-SC JAMSC-B1075-1 I/O MODULE
YASKAWA MEMOCON-SC JAMSC-B1075-1 I/O MODULE
YASKAWA MEMOCON-SC JAMSC-B1075-2 I/O MODULE
YASKAWA MEMOCON-SC JAMSC-C8110 COMMUNICATION MODULE
YASKAWA MEMOCON-SC JAMSC-C8120 LOCAL I/O DRIVER MODULE
YASKAWA MEMOCON-SC JAMSC-C8120 LOCAL I/O DRIVER MODULE
YASKAWA MEMOCON-SC JAMSC-C8130 LOCAL I/O DRIVER MODULE
YASKAWA MEMOCON-SC JAMSC-C8135 REMOTE I/O DRIVER
YASKAWA MEMOCON-SC JRMSP-P8051 POWER SUPPLY
YASKAWA MEMOCON-SC JRMSP-P8051 POWER SUPPLY
YASKAWA MEMOCON-SC JRMSP-P8051 POWER SUPPLY
YASKAWA MEMOCON-SC JRMSP-P8052 POWER SUPPLY
YASKAWA P12S-LG12
YASKAWA RH-18/1.7P RELAY THERMAL OVERLOAD
YASKAWA SERVO AMPLIFIER JUSP-WS02AA
YASKAWA SERVO AMPLIFIER SGDH-04AE
YASKAWA SERVO DRIVE SGDA-02BS
YASKAWA SERVOPACK AMPLIFIER SGDH-04AE
YASKAWA SERVOPACK SGDA-08AP
YASKAWA SERVOPAK SGDB-1AADG
YASKAWA SG0B-1AADG SERVO DRIVE *FACTORY SEALED*
YASKAWA SGDB-1EADG SERVO 60HZ 230V