描述
FX系列PLC有基本邏輯指令20或27條、步進(jìn)指令2條、功能指令100多條(不同系列有所不同)。本節(jié)以FX2N為例,介紹其基本邏輯指令和步進(jìn)指令及其應(yīng)用。
FX2N的共有27條基本邏輯指令,其中包含了有些子系列PLC的20條基本邏輯指令。
取指令與輸出指令(LD/LDI/LDP/LDF/OUT)
(1)LD(取指令)一個(gè)常開觸點(diǎn)與左母線連接的指令,每一個(gè)以常開觸點(diǎn)開始的邏輯行都用此指令。
(2)LDI(取反指令)一個(gè)常閉觸點(diǎn)與左母線連接指令,每一個(gè)以常閉觸點(diǎn)開始的邏輯行都用此指令。
(3)LDP(取上升沿指令)與左母線連接的常開觸點(diǎn)的上升沿檢測指令,僅在指定位元件的上升沿(由OFF→ON)時(shí)接通一個(gè)掃描周期。
(4)LDF(取下降沿指令)與左母線連接的常閉觸點(diǎn)的下降沿檢測指令。
(5)OUT(輸出指令)對線圈進(jìn)行驅(qū)動(dòng)的指令,也稱為輸出指令。
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應(yīng)用于以下領(lǐng)域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計(jì)算機(jī)控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動(dòng)化控制系列
本特利,英維思,伍德沃德,福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
Woodward 9907-031 1000 PSI Transducer
Woodward 9907-055 NEW STYLE 505E
Woodward 9907-072 power supply,24v
Woodward 9907-076 power supply,24v
Woodward 9907-077 power supply,24v
Woodward 9907-105 EM 25 A with paperwork
Woodward 9907-124 Real Power Sensor
Woodward 9907-126 Digital Drive
Woodward 9907-135 GS3/LQ Driver
Woodward 9907-154 1000 psi/4 Transducer
Woodward 9907-163 505
Woodward 9907-166 NEW STYLE 505E
Woodward 9907-173 Load Sensor
Woodward 9907-175 LOAD SHARING MODULE
Woodward 9907-186 GS10 Driver
Woodward 9907-205
Woodward 9907-298 GS6 Gas Fuel Valves
Woodward 9907-331 DLE Press Transducer with Papers
Woodward 9907-355 0.3 sq inch LQ25 with PIV(pressure increasing valve),single-speed resolver,?Analog,needs analog driver 9907-135
Woodward 9907-361 0.3 sq inch LQ25 with PIV&125 VDC SOV,single-speed resolver,Analog,needs analog driver 9907-135
Woodward 9907-490 Fuel/Water Valve
Woodward 9907-624 EM35 Digital Driver
Woodward 9907-774 GS3 Gas Fuel Vave
Woodward 9907-806 505C
Woodward 9907-954
Woodward 9907-955
Woodward 9907-957
Woodward 9907-994 0.3 sq inch LQ25 with PIV&24 VDC SOV(Shutoff Valve),single-speed resolver,?Analog,needs analog driver 9907-135
Woodward 9907-996 0.3 sq inch LQ25 with PIV&24 VDC SOV,3-speed resolver,Digital,needs digital driver 8200-314
Woodward A8271-610 SPM Synchronizer
Woodward A8516-041 TG-13E,4000 RPM,CW MS CONN
Woodward A8516-042
Woodward A8523-210 UG8 Governor
Woodward A9904-060 TM25 Actuator
Woodward A9904-111 TG-13E,4000 RPM,CW COND CONN
Woodward B8571-163
Woodward E8516-051 TG-13E
Woodward FA-1763-1 505 Key Pad
Woodward G8516-052 TG-13E
Woodward T87001 505 digital governor
Woodward Control Valve-Liq Fuel TM55P/1907 Liquid
Woodward Control Valve-Liq Fuel TM55P/1907 Liquid
Woodward Front Panel NetCon5000
Woodward Front Panel NetCon5000 LED/Buttons