描述
1.位元件與字元件
象X、Y、M、S等只處理ON/OFF信息的軟元件稱為位元件;而象T、C、D等處理數(shù)值的軟元件則稱為字元件,一個(gè)字元件由16位二進(jìn)制數(shù)組成。
位元件可以通過(guò)組合使用,4個(gè)位元件為一個(gè)單元,通用表示方法是由Kn加起始的軟元件號(hào)組成,n為單元數(shù)。例如K2M0表示M0~M7組成兩個(gè)位元件組(K2表示2個(gè)單元),它是一個(gè)8位數(shù)據(jù),M0為最低位。如果將16位數(shù)據(jù)傳送到不足16位的位元件組合(n<4)時(shí),只傳送低位數(shù)據(jù),多出的高位數(shù)據(jù)不傳送,32位數(shù)據(jù)傳送也一樣。在作16位數(shù)操作時(shí),參與操作的位元件不足16位時(shí),高位的不足部分均作0處理,這意味著只能處理正數(shù)(符號(hào)位為0),在作32位數(shù)處理時(shí)也一樣。被組合的元件首位元件可以任意選擇,但為避免混亂,建議采用編號(hào)以0結(jié)尾的元件,如S10,X0,X20等。
2.?dāng)?shù)據(jù)格式
在FX系列PLC內(nèi)部,數(shù)據(jù)是以二進(jìn)制(BIN)補(bǔ)碼的形式存儲(chǔ),所有的四則運(yùn)算都使用二進(jìn)制數(shù)。二進(jìn)制補(bǔ)碼的最高位為符號(hào)位,正數(shù)的符號(hào)位為0,負(fù)數(shù)的符號(hào)位為1。FX系列PLC可實(shí)現(xiàn)二進(jìn)制碼與BCD碼的相互轉(zhuǎn)換。
為更精確地進(jìn)行運(yùn)算,可采用浮點(diǎn)數(shù)運(yùn)算。在FX系列PLC中提供了二進(jìn)制浮點(diǎn)運(yùn)算和十進(jìn)制浮點(diǎn)運(yùn)算,設(shè)有將二進(jìn)制浮點(diǎn)數(shù)與十進(jìn)制浮點(diǎn)數(shù)相互轉(zhuǎn)換的指令。二進(jìn)制浮點(diǎn)數(shù)采用編號(hào)連續(xù)的一對(duì)數(shù)據(jù)寄存器表示,例D11和D10組成的32位寄存器中,D10的16位加上D11的低7位共23位為浮點(diǎn)數(shù)的尾數(shù),而D11中除最高位的前8位是階位,最高位是尾數(shù)的符號(hào)位(0為正,1是負(fù))。10進(jìn)制的浮點(diǎn)數(shù)也用一對(duì)數(shù)據(jù)寄存器表示,編號(hào)小數(shù)據(jù)寄存器為尾數(shù)段,編號(hào)大的為指數(shù)段,例如使用數(shù)據(jù)寄存器(D1,D0)時(shí),表示數(shù)為
10進(jìn)制浮點(diǎn)數(shù)=〔尾數(shù)D0〕×10〔指數(shù)D1〕
其中:D0,D1的最高位是正負(fù)符號(hào)位。
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)》
?
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,??怂共_、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(lè),ACSO,力士樂(lè)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 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