MX213/W
MX213/W
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不同型號(hào)的PLC具有不同的硬件組成和性能指標(biāo)。它們的基本I/O點(diǎn)數(shù)和擴(kuò)展范圍,程序存儲(chǔ)容量往往差別很大。因此,在進(jìn)行PLC程序設(shè)計(jì)之前,要對(duì)所用PLC的型號(hào),硬件配置(如內(nèi)裝型PLC是否要增加附加I/O板,通用型PLC是否要增加I/O模板等)作出選擇。
(1)輸入/輸出點(diǎn) 輸入點(diǎn)是與機(jī)床側(cè)被控對(duì)象有關(guān)的按鈕、開(kāi)關(guān)、繼電器和接觸器觸點(diǎn)等連接的輸入信號(hào)接口,以及由機(jī)床側(cè)直接連接到NC的輸入信號(hào)接口(如減速信號(hào):*DECX,*DECY…,跳過(guò)信號(hào):SKIP等)。
輸出點(diǎn)包括向機(jī)床側(cè)繼電器,指示燈等輸出信號(hào)的接口。設(shè)計(jì)者對(duì)被控對(duì)象的上述I/O信號(hào)要逐一確認(rèn),并分別計(jì)算出總的需要數(shù)量。選用的PLC所具有的I/O點(diǎn)數(shù)應(yīng)比計(jì)算出的 I/O點(diǎn)數(shù)稍多一些,以備可能追加和變更控制性能的需要。
(2)存儲(chǔ)容量 一般來(lái)說(shuō),普通CNC車(chē)床順序程序的規(guī)模約1000步,小型加工中心約2000步。程序規(guī)模隨機(jī)床的復(fù)雜程度變化,設(shè)計(jì)者要根據(jù)具體任務(wù)對(duì)程序規(guī)模作出估算,并據(jù)此確定合理的存儲(chǔ)容量。
另外,所選擇PLC的處理時(shí)間,指令功能,定時(shí)器、計(jì)數(shù)器、內(nèi)部繼電器的技術(shù)規(guī)格、數(shù)量等指標(biāo)也應(yīng)滿足要求。
NUMATICS ACTUATOR PNEUMATIC VALVE REPAIR KIT, N98-2190 *NEW*
SMC 24VDC DOUBLE SOLENOID VALVE VQ7-6-FG-D-3Z
SMC 0.2-1.0MPA SOLENID VALVE VQ7-6-FJG-D-3ZR
KUNKLE VALVE DIVISION 50 PSIG 1-1/2" NPT RELIEF VALVE, 537-G01-HM *NEW*
INLINE INDUSTRIES 1000WOG 3/8" SS BALL VALVE CF8M
TRANSPAK 3-15PSIG 4-20MA 10-90V 1/4" SOLENOID VALVE TP690-001 105402
JAMESBURY INC. SEAL REPAIR KIT RKF5TT NIB
VELAN 1" 1975PSIG@100°F MODEL-A GLOBE VALVE A105N / S-2074B-02TY
FESTO CPV10-VI M302 CPV10-GE-ASI-8E?8A-Z-M8 MANIFOLD W/ (1) 185 880 R302
FESTO CPV10-VI M302 CPV10-GE-ASI-8E?8A-Z-M8 MANIFOLD W/ (1) 185 880 R202
MANNESMANN REXROTH 4WE10D31/CG24N9?Z55L SOLENOID VALVE
VICKERS DIRECTIONAL SOLENOID CONTROL VALVE DG4V-3-23A-M-P7?-H-7-52
LADISH 3/4" 150 DIRECTIONAL VALVE 0701-314
SMC 0-1.0MPA 24VDC 2-POSITION SINGLE VALVE MANIFOLD, VQC4101R-5 *NEW*
ITT FABRI-VALVE 150 CWP S316 8" KNIFE GATE VALVE F440732
RELIANCE P18G4059C FRAME 184TC 3PH 230/460V 3500RPM 5HP MOTOR 01BG96507401G 1 XY
BURKERT 125925E 24V 2W NEW
ALCO CONTROLS 120V 17/12W SOLENOID VALVE COIL 023-0039-01 *NEW*
REXROTH HYDRAULIC DIRECTIONAL VALVE Z4WE 6 W68-30/EG24K4/V
RUGGLES-KLINGEM?ANN 1/2" SOLENOID VALVE 229-A
FESTO CPV10-VI U502 CPV10-GE-ASI-8E?8A-Z-M8 MANIFOLD W/ (5) 161 368 U402
FESTO CPV10-VI U202 CPV10-GE-ASI-8E?8A-Z-M8 MANIFOLD W/ (5) 161 368 TD02
FESTO CPV10-VI M302 CPV10-GE-ASI-8E?8A-Z-M8 MANIFOLD W/ (2) 185 880 L702
FLOWSERVE * ACTUATOR VALVE W/ ASCO SOLENOID VALVE * B100S10
NUMATICS 24VDC 0.5W 100 PSIG SOLENOID VALVE, R22BBAZ4MK00061 *NEW*
SMC SOLENOID VALVE NIB SYK3143-6LOZ 99412
JAMESBURY 150PSI ACTUATOR ST-400 B W/ 6" CF8M VALVE 5152W-31-3600TS?-1
NIBCO BRONZE BALL VALVE, ? TURN ?" NPT END CONNECTION, NEW
SIZE 3 CLASS 150 SS316 KNIFE VALVE L10-0320C-13BL