描述
条件跳转指令CJ(P)的编号为FNC00,操作数为指针标号P0~P127,其中P63为END所在步序,不需标记。指针标号允许用变址寄存器修改。CJ和CJP都占3个程序步,指针标号占1步。
如图3-28所示,当X20接通时,则由CJP9指令跳到标号为P9的指令处开始执行,跳过了程序的一部分,减少了扫描周期。如果X20断开,跳转不会执行,则程序按原顺序执行。
图1跳转指令的使用
使用跳转指令时应注意:
1)CJP指令表示为脉冲执行方式;
2)在一个程序中一个标号只能出现一次,否则将出错;
3)在跳转执行期间,即使被跳过程序的驱动条件改变,但其线圈(或结果)仍保持跳转前的状态,因为跳转期间根本没有执行这段程序。
4)如果在跳转开始时定时器和计数器已在工作,则在跳转执行期间它们将停止工作,到跳转条件不满足后又继续工作。但对于正在工作的定时器T192~T199和高速计数器C235~C255不管有无跳转仍连续工作。
5)若积算定时器和计数器的复位(RST)指令在跳转区外,即使它们的线圈被跳转,但对它们的复位仍然有效。
欧美品牌停产的,常用的“PLC”备品备件
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4,《DCS集散控制系统》
5,《智能型消防供水控制系统》
6,《化工厂药液恒流量计算机控制系统》
7,《电气控制系统》造纸,印染生产线,变电站综合自动化控制系列
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Woodward 8915-118
Woodward 8915-123 Control Valve-Gas Fuel TM55P/3103 Hi Temp 1″Port
Woodward 8915-385 Control Valve-Liq Fuel TM55P
Woodward 8915-429 3151 Valve w/TM 40 LP actuator
Woodward 8915-526 Fuel/Water Valve
Woodward 8915-652 Control Valve-TM55P/1907 Lg Liquid
Woodward 8915-712 3103/TM55P CSA 1”Gas Valve&actauator assy.
Woodward 8915-755 Control Valve-TM55P/3103 Hi Temp Gas Fuel 2″Port
Woodward 8915-775 Control Valve-TM40/3151A Water
Woodward 8915-782 3151A/TM40 Water Injection Valve/Act
Woodward 8915-861 Fuel/Water Valve
Woodward 8915-877 Control Valve-Liq Fuel TM55P/1907 Lg Liquid
Woodward 8915-880 EM35 A9907-105,
Woodward 8915-883
Woodward 8915-886 Gas Fuel Valve
Woodward 8915-887 3103/tm55
Woodward 8915-948 3151A/TM40 Water Injection Valve/Act
Woodward 8915-953 3103/EM35 GAS VALVE
Woodward 8915-955 3103/EM35MR CSA 2”Gas Valve&actuator assy
Woodward 8915-978 3171A/EM35MR GAS VALVE W/DUAL RESOLVER.
Woodward 8915-986
Woodward 8923-811 Kit-Read only Ladder Logic V1.Control
Woodward 8924-574
Woodward 8928-5014 license key for the Woodward Control Assistant program,version 3.3
Woodward 9902-244 Fuel Valve 9904-247,9904-002
Woodward 9903-057 EGR actuator
Woodward 9903-091 Ramp Generator and Signal Converter
Woodward 9903-109 EG-M CONTROL
Woodward 9903-226 PG-PL
Woodward 9903-557 ENHANCED 505
Woodward 9904-002 TM55 Intergrating Actuator
Woodward 9904-060 TM-25 Actuator,extends
Woodward 9904-061 TM-25 Actuator,retracts
Woodward 9904-111 TG-13E,4000 RPM,CCW COND CONN
Woodward 9904-113 TG-17E
Woodward 9904-173 TM-55 Actuator
Woodward 9904-206 TP&M FT-8 DUAL CHANNEL SERVOVALVE
Woodward 9904-254 FT-8 HYDRAULIC PUMP
Woodward 9904-261 FT-8 HYDRAULIC PUMP
Woodward 9904-263 FT-8 HYDRAULIC PUMP
Woodward 9905-001 SPMA Synchronizer
Woodward 9905-017
Woodward 9905-020 Low Voltage 2301 Load Sharing&Speed Control
Woodward 9905-021 2301A LOAD SHARING&SPEED CONTROL
Woodward 9905-059 TM 40 LP Proportional Actuator
Woodward 9905-089 Process Import/Export
Woodward 9905-180 LOAD SHARING MODULE
Woodward 9905-204 DSM synchronizer volt matching
Woodward 9905-211 701 digital speed control
Woodward 9905-462
Woodward 9905-463 ProAct Speed Control
Woodward 9905-537 ST 2000 Programmer for GENDEC
Woodward 9905-603 Digital Synch&Load Control
Woodward 9905-678 Linknet
Woodward 9905-699 NEW STYLE 505
Woodward 9905-703 Digital Synch&Load Control
Woodward 9905-707 DSLC Control
Woodward 9905-708 Digital Synch&Load Control
Woodward 9905-760 LinkNet Modules
Woodward 9905-763 TM-25 Actuator,extends
Woodward 9905-764 TM-25 Actuator,retracts
Woodward 9905-858 Peak 150
Woodward 9905-864 Peak150 110VAC/125VCD Nema 4X
Woodward 9905-896 505 Bulkhead
Woodward 9905-958 LINKNET AI
Woodward 9905-964 Gas Shutoff Valve,125VDC with Suppression
Woodward 9905-966
Woodward 9905-967 6 CHANNEL TC INPUT
Woodward 9905-968 LinkNet 6 ch 4-20 input
Woodward 9905-969 LinkNet 6 ch 4-20 input
Woodward 9905-970 LINKNET 6 CH RTD 100 OHM
Woodward 9905-971 LinkNet 16 ch discreet input
Woodward 9905-972 LinkNet 6ch 4-20 AO
Woodward 9905-973 8 CHANNEL RELAY
Woodward 9906-124 Real Power Sensor
Woodward 9906-619 723 Plus
Woodward 9906-619 723 Plus
Woodward 9907-005 377A62602P0001,9905-713F
Woodward 9907-018 2301 Load Share and Speed Control
Woodward 9907-019
Woodward 9907-028 SPM Synchronizer