西门子PLC基本指令功能介绍
一、标准触点 LD、A、O、LDN、AN、ON、
LD,取指令。表示一个与输入母线相连的常开接点指令,即常开接点逻辑运算起始。
LDN,取反指令。表示一个与输入母线相连的常闭接点指令,即常闭接点逻辑运算起始。
A,与指令。用于单个常开接点的串联。
AN,与非指令。用于单个常闭接点的串联。
O,或指令。用于单个常开接点的并联。
ON,或非指令。用于单个常闭接点的并联。
二、正、负跳变 ED、EU
ED,在检测到一个正跳变(从OFF到ON)之后,让能流接通一个扫描周期。
EU,在检测到一个负跳变(从ON到OFF)之后,让能流接通一个扫描周期。
三、输出 =
=,在执行输出指令时,映像寄存器中的指定参数位被接通。
四、置位与复位指令S、R
S,执行置位(置1)指令时,从bit或OUT指定的地址参数开始的N个点都被置位。
R,执行复位(置0)指令时,从bit或OUT指定的地址参数开始的N个点都被复位。
置位与复位的点数可以是1-255,当用复位指令时,如果bit或OUT指定的是T或C时,那么定时器或计数器被复位,同时当前值将被清零。
五、空操作指令NOP
NOP指令不影响程序的执行,执行数N(1-255)。
Allen Bradley 1746-A10 Series B SLC500 10 Slot Rack Cracked
Allen Bradley 1746-A4 Series B SLC500 4 Slot Rack
Allen Bradley 1746-A7 Series B SLC500 7 Slot Rack
Allen Bradley 1746-P3 Series A Power Supply
Allen Bradley 1747-L20A Series A Processor Unit - Missing some screws
Allen Bradley 1747-L40A SLC500 Series C Processor Unit FRN 6
Allen Bradley 1747-L40C Processor Unit
Allen Bradley 1747-L40C SLC500 Series C Processor Unit
Allen Bradley 1747-L40C SLC500 Series C Processor Unit 40 I/O
Allen Bradley 1747-L511 Series B Processor Unit
Allen Bradley 1747-L514 SLC500 Processor Unit
Allen Bradley 1747-MM1 Series A Rev. A Memory Module
Allen Bradley 1747-SN Remote I/O Scanner Module (Series B)
Allen Bradley 1756-DNB/A Devicenet Communications Module
Allen Bradley 1762-L24AWA Series C FRN 12 Micrologix 1200 Controller
Allen Bradley 1769-IF4 Analog Input Module Series B Missing Cover
Allen Bradley 1790D-TN4V0 Analog Voltage Base
Allen Bradley 1791-16BO Output Module Series B
Allen Bradley 1794-ACN15 Flex I/O ControlNet Adapter
Allen Bradley 192-PD31123 Distribution Block 500MCM Line to #2 to #14 Load
Allen Bradley 194E-A63-1753 Series B 30 Amp 3 Pole Panel Disconnect
Allen Bradley 2094-BMP5-S Kinetix 6000 Servo Drive
Allen Bradley 2094-BMP5-S Kinetix 6000 Servo Drive Mounting Bar Damaged
Allen Bradley 20A D 5P0F 3 AYNADG0 3 HP 480V 3 Phase Inverter Drive
Allen Bradley 20D-D1P4N104 0.5 HP 480V 3 Phase Inverter Drive
Allen Bradley 20D-MDI-C2 Multi Device Interface Option Card for 700S Drives
Allen Bradley 22B-B017C104 Series A AC Inverter Drive 5HP 200-240V 3 Phase
Allen Bradley 22D-D1P4N104 0.5 HP 480V 3 Phase AC Inverter Drive
Allen Bradley 284D-FHD4P0D-10-CRN ArmorSmart Control Module w/ 280D-FN-10-C Base
Allen Bradley 40023-401-02 400 Amp 600V Fuse Holder
Allen Bradley 42GNF-9000-QD Infrared Fiber Optic Sensor
Allen Bradley 42T-TWC25SL Glass Fiber Optic Cable
Allen Bradley 43GT-FPS10ML Glass Fiber Optic Cable
Allen Bradley 50387-002 Modulator Logic Board
Allen Bradley 505-B0D Size 1 Reversing Motor Starter Nice Contacts
Allen Bradley 50906 Power Distribution Board
Allen Bradley 50918 Control Board
Allen Bradley 509-B0D Size 1 Motor Starter With Auxiliary Contact (509-BOD)
Allen Bradley 509DC-BOVL Size 1 Starter With 24 VDC Coil
Allen Bradley 6181P-10TS2KH Series A Industrial Computer Fault light
Allen Bradley 6181P-10TS2KH Series A Industrial Computer Windows 2000
Allen Bradley 700-RTC10110U24 Solid State Timer
Allen Bradley 700-RTC2020024 Solid State Timer
Allen Bradley 700S-CF440ZJC Safety Control Relay 700-CF310Z* Series A 100S-F
Allen Bradley 74A06 Starter/Contactor Coil
Allen Bradley 800E-VDD4NX Devicenet Control Station
Allen Bradley 800T-FXJQH24RA1 Push/Pull Red Illuminated Mushroom Head Button
Allen Bradley 800T-FXQH24RA1 Push/Pull Red Illuminated Mushroom Head Push Button
Allen Bradley 800T-H3214 Two Position Maintained Keyed Selector Switch Head
Allen Bradley 800T-NG13KF4B Four Position Wing Lever Selector Switch
Allen Bradley 800T-QBH10G Green Lighted Push Button 120V 1 N.O. & 1 N.C. Contact
Allen Bradley 800T-QBH24A 33.5 MM Lighted Amber Push to Test 24 VDC Push Button
Allen Bradley 800T-QMH24G 33.5 MM Lighted Green Push to Test 24 Volt Push Button
Allen Bradley 802T-DPNJ9 Limit Switch Series J
Allen Bradley 809-A01E Series A Instantaneous Trip Current Relay
Allen Bradley 872C-N12CP18-D4 Proximity Sensor (12mm, NC, PNP, Unshielded)
Allen Bradley 99-31-1 Glass Fiber Optic Cable
Allen Bradley CD236 Starter/Contactor Coil (115-120 Volt)
Allen Bradley CE249 Starter/Contactor Coil (200-208 Volt)
Allen Bradley GE473 Contactor Coil for 100-B110ND3 (120 volt)
Allen Bradley Guardmaster 100S-C23DJ14C Contactor 100-C23Z*10 w/ 100S-F
Allen Bradley Guardmaster 440E-D13114 Rope Safety Switch
Allen Bradley Guardmaster 440K-C21091 Safety Limit Switch with Key
Allen Bradley Guardmaster 700S-C09DJ05BC Safety Control Relay 24 VDC
Allen Bradley Guardmaster 700S-CF620DJC Safety Control Relay 24 VDC
Allen Bradley Guardmaster 700S-CFB440DJC Safety Control Relay 24 VDC
Allen Bradley P-24530 Control board
Allen Bradley Power Driver Board 50283 With 50284-003 Snubber Assembly
Allen Bradley TG473 120 VAC Coil for 100-D95 160 Amp Contactor
Allen Bradley X-211272 350 VA Transformer 480/240V to 120V
Allen Bradley X592P-B1FC / 193-B1F3 Overload Relay 3.7 to 12 Amp
Analog Devices UMAC4040 Control Board
Appleton SWD016C100A 16 Amp 1 Pole Hazardous Location Switch
Aromat ANA108108 MB-300AB1-DC12-24V Photo Electric Sensor
Asco 8044A004 1 1/2" 120 Volt Solenoid Valve with Manual Reset
Asco 8262C62T 1/8" Solenoid Valve 24VDC Coil
Asco 8320A24 Solenoid Valve 120V, 40 PSI
Asco EF8003EF 120V Solenoid Valve 1/2"
福州卓凯电子科技有限公司联系人:小林
24小时咨询热线:17705012279
电话:0591-22983857
联系QQ:879520885
传真:0591-22989937
公司主营产品有:AB,ABB,GE,西门子,力士乐,施耐德,福克斯,等工业自动化控制配件及各种停产备件。诚信经营,质量可靠,请放心购买,我们将竭诚为您服务!
资讯来源:福州卓凯
|