GE IC698CRE020

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大型化PLC發(fā)展方向主要有以下幾個方面：

     ① 功能不斷加強：不僅具有邏輯運算、計數(shù)、定時等基本功能，還具有數(shù)值運算、模擬調(diào)節(jié)、監(jiān)控、記錄、顯示、與計算機接口、通信等功能。

         網(wǎng)絡(luò)功能是PLC發(fā)展的一個重要特征。各種個人計算機，圖形工作站、小型機等都可以作為PLC的監(jiān)控主機或工作站，這些裝置的結(jié)合能夠提供屏幕顯示、數(shù)據(jù)采集、記錄保持、回路面板顯示等功能。大量的PLC聯(lián)網(wǎng)及不同廠家生產(chǎn)的PLC兼容性增加，使得分散控制或集中管理都能輕易地實現(xiàn)。

     ② 應(yīng)用范圍不斷擴大：不僅能進行一般的邏輯控制，種類齊全的接口模塊還能進行中斷控制、智能控制、過程控制、遠程控制等。

        用于過程控制的PLC往往對存儲器容量及速度要求較高，為此，開發(fā)了高速模擬量輸入模塊，專用獨立的PID控制器，多路轉(zhuǎn)換器等，使得數(shù)字技術(shù)和模擬量技術(shù)在可編程序控制器中得到統(tǒng)一。采用軟件、硬件相結(jié)合的方法，使得編程和接線都比過去用常規(guī)儀表控制要方便得多。

SIEMENS * 60A 600V NEMA 3R HEAVY DUTY SAFETY SWITCH * HF362J
 
ALLEN BRADLEY 110/115-120VAC COIL AC RELAY 700-P400A1 SER. D
 
FLOYD BELL * 40-120 VAC BELL AUDIO ALARM * MW-09-201-0-Q
 
PILZ SAFETY RELAY PILZ 16374
 
CHROMALOX HEATING ELEMENT MT0-105
 
SMC AR30K-03 REGULATOR W PANEL MOUNT AR30P-270AS NIB
 
CHEMETRONICS 100 WATT 24 VOLT POWER SUPPLY SN 7-022-0126
 
SMC SOLENOID VALVE NVFR4200 15-130PSI NIB
 
MILLTRONICS MSP-12 MOTION SENSING PROBE 51012361
 
SELLSTROM SAFETY GLASSES Z87
 
FEDERAL SIGNAL CORP. 1.90A 120VAC/DC EXPLOSION-PROOF SIREN AX SER-B1
 
NOSHOK 0-600 PSI PRESSURE GAUGE
 
STI MINISAFE MS4300 SERIES CURTAIN EMITTER / RECEIVER SET MS4316BX / MS4316BR
 
TELEMACANIQUE XVB C35 STACK LIGHT LENS NNB
 
DWYER INSTRUMENTS PRESSURE SWITCH 1638-O 104574
 
TRI LITE BLUE LIGHT MV110UL NNB
 
NOSHOK 0-300PSI PRESSURE GAUGE
 
MORRISON BROS TANK VENT FIG 155 NNB
 
SURE-LITES COOPER EXIT LIGHT NIB
 
MSA POLYCARBONATE VISOR 10022242
 
SALISBURY ELECRTICAL RUBBER GLOVES SZ 10 BLUE ANSI/ASTM D120 TYPE II
 
TELEMECANIQUE 230V 10W RED STEADY UNIT, XVB C34, NNB
 
STI MiniSafe LONG RANGE MS4400 LIGHT CURTAIN RECEIVER 42681-0240 / MS4424BR
 
GRUNAU * SPRINKLER HEAD * 1983
 
MSA BLUE V-GARD FAST-TRAC HARD HAT CAP 475359 NIB
 
FUSI ELECTRONIC CIRCUIT PROTECTOR CP31 10A
 
OMRON SAFETY LIGHT CURTAIN RECEIVER/EMITTE?R F3SN-A084P25-D-?01/F3SN-A0847P2?5-L-01
 
NOTIFIER FIRE LITE HEAT DETECTOR HD-604
 
WILLSON T08P100 UNI-SORB SEALED
 
PEPPERL + FUCHS H51X72 REFLECTOR 206531


DUAL-LITE EMERGENCY EXIT SIGN KSR-LED-EP
 
SCOTT RESPIRATOR CARTRIDGES 091802 NIB
 
COMMERCIAL PRODUCTS GROUP POWERTONE INTERFACE 25VRMS SEALED
 
KEYENCE LIGHT CURTAIN TRANSMITTER AND RECEIVER SET SL-C48HM
 
GENERAL ELECTRIC 60A 600V 250VDC SAFETY SWITCH TH3362J MOD 2
 
SICK LIGHT CURTAIN AGSS 450-1111
 
SELLSTROM KNEE PRO ULTRA FLEX III 96110
 
AUDIBLE SIGNAL APPLIANCE 558H
 
SICK 30-MGS 52" SAFETY LIGHT CURTAIN MGSS120-12
 
UNITED ELECTRIC CONTROLS PRESSURE SWITCH H122-156
 
FUJI ELECTRIC 3 POLE 225A AUTO BREAKER SA203HI
 
KEYENCE SAFETY LIGHT CURTAIN SL-C MANUAL
 
SIDE BRUSH, 12.5" .060/46 GRIT 167428, NIB
 
TELEMECANIQUE STACK ABLE LIGHTS XVB C38, XVB C33, XVB C34
 
SCHLEICHER 50-60Hz SAFETY RELAY D-13597 SNT 4053 K

MILLER MIGHTY LITE 310LB CAPACITY 20FT SELF-RETRACTING LIFELINE, RL20BP/20FT
 
WILLSON, RESPIRATOR MASQUE, 6100-V, VALUAIR PLUS, SEALED
 
PEPPERL AND FUCHS 24V LIGHT CURTAIN SLC30-150-T/92
 
SQUARE D ELECTRICAL E LOCKOUT
 
ALDON "A" SINGLE CHOCK WITH FLAG 4011-01 105563
 
SCOTT TWIN CARTRIDGE RESPIRATOR MODEL 65 NIB
 
B-LINE BEAM CLAMP BRACKETS B441-22 NO U BOLTS LOT OF 13
 
DATA INSTRUMENT PRESSURE TRANSMITTER MODEL BL SNA8243 200 PSI
 
ALLEN BRADLEY GUARDMASTER MAT GUARD SENSOR MAT 440F-M0926BYNN SER-A
 
V-SAFE * SECURITY LOCKOUT * VS04R
 
FEDERAL SIGNAL CORP. 120VAC LITESTAK BASE SER.B NIB LSB-120 104642
 
SICK 30-MGS 28" SAFETY LIGHT CURTAIN MGSE60-12B
 
ALLEN BRADLEY 100-SA20 SER B AUXILIARY CONTACTS SIDE MNT NIB
 
ALLEN BRADLEY HR 100-240VAC MULTI FUNCTION TIMING RELAY 700-HN130
 
SCHMERSAL SAFETY SWITCH SCMCST1801 NIB
 
JACKDON SAFETY MONOGOGGLE PROTECTIVE GOGGLE CHEMICAL SPLASH PROTECTION
 
SCOTT AIR-PAK BREATHING APPARATUS PRESSURE GAUGE PROTECTOR KIT 804091-01 NIB
 
NUMATICS 110-120V .06A 150 PSIG-AIR SOLENOID VALVE 031SA400O000030 NIB
 
BRADY BALL VALVE LOCKOUT DEVICE 65693 NIB
 
SALISBURY ELECTRICAL GLOVES SZ 9 RED ANSI/ASTM D120 TYPE I NNB
 
HUBBELL WATER TIGHT CONNECTOR HBL15W47 NNB
 
* H.O. TRERICE CO. * 52-2247
 
SEMPRA 120/277VAC CAST ALUMINUM LED EXIT SIGN SEDRW
 
KEYENCE PHOTOELECTRIC SWITCH PW-41 NIB
 
TELEMECANIQUE CLEAR STEADY STACK LIGHT NIB 084510 / XVB C37
 
AB BULLETIN 855T, SURFACE MOUNT AND CAP - SERIES B
 
SICK C4000 SENDER AND RECEIVER C40E-1201BN310 / C40S-1201AA310 NNB
 
SP NEMA RED LED EXIT SIGN AND END MOUNT NXSPLDRE NIB
 
BARBER-COLEMAN TEMPERATURE CONTROLLER 580
 
TURCK BMSWS 8151-0/PGS 6904700 NIB
 
LIGHT BOX 16089 RED GREEN