電源板 64691929
電源板 64691929
1.電源模塊的選擇
電源模塊選擇僅對(duì)于模塊式結(jié)構(gòu)的PLC而言,對(duì)于整體式PLC不存在電源的選擇。
電源模塊的選擇主要考慮電源輸出額定電流和電源輸入電壓。電源模塊的輸出額定電流必須大于CPU模塊、I/O模塊和其它特殊模塊等消耗電流的總和,同時(shí)還應(yīng)考慮今后I/O模塊的擴(kuò)展等因素;電源輸入電壓一般根據(jù)現(xiàn)場(chǎng)的實(shí)際需要而定。
2.編程器的選擇
對(duì)于小型控制系統(tǒng)或不需要在線編程的系統(tǒng),一般選用價(jià)格便宜的簡(jiǎn)易編程器。對(duì)于由中、高檔PLC構(gòu)成的復(fù)雜系統(tǒng)或需要在線編程的PLC系統(tǒng),可以選配功能強(qiáng)、編程方便的智能編程器,但智能編程器價(jià)格較貴。如果有現(xiàn)成的個(gè)人計(jì)算機(jī),也可以選用PLC的編程軟件,在個(gè)人計(jì)算機(jī)上實(shí)現(xiàn)編程器的功能。
3.寫(xiě)入器的選擇
為了防止由于干擾或鋰電池電壓不足等原因破壞RAM中的用戶程序,可選用EPROM寫(xiě)入器,通過(guò)它將用戶程序固化在EPROM中。有些PLC或其編程器本身就具有EPROM 寫(xiě)入的功能。
DREXELBROOK CONTROL SENSOR 104231
ENCODER PRODUCTS INCREMENTAL SHAFT ENCODER 725I-R-OC
DELPHI OXYGEN SENSOR ES10660 NIB
SENSOTEC TJE / 882-18TJD PRECISION GAGE / ABSOLUTE PRESSURE TRANSDUCER, NNB
BANNER FIBER OPTIC CABLE 21297 NIB
TURCK 18MM TEFLON-COATED SENSOR MOUNT NIB QM 18-T / A2546
NAMCO PROXIMITY SWITCH NIB EE510-86040
BANNER SMBPVA16A / 62449 PROTECTIVE BRACKET KIT, NIB
PHD INC. 117V SENSOR / TRANSDUCER 9799-01-0100
TCS TEMPERATURE SENSOR TX1504 NIB
GUARDIAN ACCELEROMETER MOUNTING SYSTEM 7002 NIB
RSF ELEKTRONIK DG 118 ROTARY ENCODER 990002011656
IFM EFECTOR FLOW SENSOR SI8507 NIB
NAMCO 0.5A 20-230V AC/DC 3000 PSI CYLINDICATOR PROXIMITY SENSOR EE230-38720
SCHAEVITZ LINEAR VARIABLE SENSOR 02350531-000 / PCA-116-100 NIB
EMERSON ELECTRIC CHROMALOX 30AMPS 277VAC TEMPATURE CONTROL AR-515P
FOXBORO PLATINUM TEMPATURE DETECTOR PR-13UBS-010 102268
BANNER MULTI-BEAM POWER BLOCK LR41887 NIB
KEYENCE 24 VCD TRANSMITTER SL-C24H-T 101349
ACCU-SORT SYSTEMS INC. LASER SCANNER MODEL-70 70AA
SICK * MSLZ SAFETY LIGHT CURTAIN * MSLZ01-15022C
SICK 18-30VDC LUMINESCENCE SENSOR LUTI-530
FOXBORO 2800 SERIES 316SS ELECT MAGNETIC FLOW TRANSMITTER 2810-SABA-TS
TORK 50-60HZ 1800VA 208-277V PHOTOCONTROL 2104
SICK * 30-FGS SAFETY LIGHT CURTAIN * FGSS 750-23
DELPHI TS10031 TEMPERATURE SENSOR, NIB
DELPHI TS10150 TEMPERATURE SENSOR, NIB
BALLUFF PROXIMITY SENSOR BES 516-209-BO-E-05
JOHNSON CONTROLS 0 TO 70% HUMIDISTAT W43A-14C NIB
MIDDEX ELECTRONIC WKLR 22-90 TOOL CONTROL SYSTEM NIB
IFM EFECTOR IC006 PROXIMITY SWITCH ICE2040-FBOR/NP?T 105074