TSXASY410 Premium 模擬量輸出
工業(yè)以太網(wǎng)的缺點(diǎn)主要包括以下幾個(gè)方面:
成本較高:相對(duì)于傳統(tǒng)的工業(yè)控制網(wǎng)絡(luò),工業(yè)以太網(wǎng)的設(shè)備和系統(tǒng)成本較高,因此在初期投入較大。
實(shí)時(shí)性不夠:雖然工業(yè)以太網(wǎng)的實(shí)時(shí)性已經(jīng)得到了很大的提升,但是對(duì)于某些高精度、高實(shí)時(shí)性的工業(yè)控制系統(tǒng)來(lái)說(shuō),仍然存在一定的實(shí)時(shí)性問(wèn)題。
安全性有待加強(qiáng):工業(yè)以太網(wǎng)在安全性方面已經(jīng)采取了多種措施,但是在面對(duì)不斷變化的安全威脅時(shí),仍然需要不斷改進(jìn)和加強(qiáng)安全性。
兼容性問(wèn)題:由于工業(yè)以太網(wǎng)采用了不同于傳統(tǒng)工業(yè)控制網(wǎng)絡(luò)的技術(shù)和協(xié)議,因此與傳統(tǒng)網(wǎng)絡(luò)之間存在一定的兼容性問(wèn)題,需要進(jìn)行轉(zhuǎn)換和協(xié)議轉(zhuǎn)換等處理。
技術(shù)標(biāo)準(zhǔn)不統(tǒng)一:工業(yè)以太網(wǎng)的技術(shù)標(biāo)準(zhǔn)不統(tǒng)一,存在多種協(xié)議和接口,因此在多廠商、多設(shè)備、多系統(tǒng)的環(huán)境下,可能存在兼容性和互操作性問(wèn)題?傮w來(lái)說(shuō),工業(yè)以太網(wǎng)雖然成為了工業(yè)自動(dòng)化和控制領(lǐng)域的重要網(wǎng)絡(luò)技術(shù),但仍然存在一些缺點(diǎn)和不足,需要不斷改進(jìn)和優(yōu)化,以滿足工業(yè)現(xiàn)場(chǎng)的需求。
Graco Magna Drum Pump Premier 800 Air 222-800 C59792
Cutler Hammer CH Advantage W240M6CFC Size Sz 6 Starter
Cutler-Hammer Magnum DS MDS630 3000 Amp Digitrip 520 A
Cutler Hammer CRD CRD316T33W 1600A 1600Amp 1600 A
Digitrip 310 TRIP UNIT RES1600LS W/AUX AND SHUNT TRIPS
Yaskawa CACR-UP130AAB Robot Servo Unit CACRUP130AAB
Westinghouse PC 2000 Amp 2000A A PC32000 2000A Trip
GE 2500 Amp High Pressure Contact Switch Enclosure HPC
Toshiba Vacuum Contactor YDCT Motor Starter 600 HP 460V
Square D Schneider Masterpact NW12L 1200 Amp 1200A NIB
Onan 1200 A Amp Bypass Transfer Switch ATS 480V BT 1200
Cutler Hammer CRD CRD320T33W 2000A 2000Amp 2000 A
Allen Bradley AB Size Sz 8 509-JOB Motor Starter 600V
Square D PJL36120U63AE1 PowerPact Micrologic 1200 Amp
Siemens 6SE7232-6EG00-3AB0-Z VT VF 200 HP VS AC Drive
Hitran Transber 870 kVA 460/460Y/266 V 3PH Y 870kVA
Cutler Hammer CH Advantage W201KHCF Size 6 Contactor
Siemens Breaker Enclosure Panel FC 1 FCI 2000 Amp A 4W
Yaskawa CACR-UP130AAB Robot Servo Unit CACRUP130AAB
Sew Eurodrive R143DV 7HP Ratio:107.25 Gear Reducer REM
GE AKR-10D-100 4000 A Amp Breaker MVT Plus Trip 635 V
Allen Bradley AB 1336F-B075-AA-EN 75 HP 480V NIB
Telemecanique Altivar 58 TRX ATV58HC19N4X Drive 250 HP
ASCO 1200 A Amp Transfer Switch ATS C9403120099XC 480V
Square D 3R QED I-Line Panelboard 1600 Amp 480Y/277 V
Tranter Superchanger Plate Frame Heat Exchanger 06T26UP
Square D QED I-Line PanelBoard 4000 Amp 3000A 480Y/277
Cutler-Hammer Magnum DS MDSC5N 2500 Amp Digitrip 520M
GE AKR-10D-75 3200 A Amp Air Breaker MVT Plus Trip 635V
GE AKR-7D-100 4000 A Amp Breaker RMS-9 MVT Trip 635 V
Sew Eurodrive KA107R7 3HP Ratio:522.00 Gear Reducer
Allen Bradley AB 1336S-B150-AN-EN-L6 150/200 HP Drive
GE Limitamp Multilin Starter 176 Amp 2.5 kV CR194A147B2
Allen Bradley AB 1336S-B150-AN-EN-L6 150/200 HP Drive
ABB Pole Transber 34500GY/19920 277/480 500 kVA
Westinghouse VCP-W 250 1200 Amp A 5kV Type50 3776A11G01
Zenith 1200 A Amp ZBTSD121E 480 V 3 PH Transfer Switch
Westinghouse Ampgard Medium Motor Starter 608 HP 4160V
US Electric Titan TE Motor 300 HP 1785 RPM 449TL 449T
Siemens 750kVA 13200/480Y/277V Padmount Transber 3PH
Cooper 0053LP12KZ5A 750 kVA 4160/2400 208/120 Padmount
Westinghouse Ampgard Medium Motor Starter V202S4G 4160V
Sew Eurodrive R107R77D 1HP Ratio:469.0 Gear Reducer
Sew Eurodrive R102R73D 1HP Ratio:689 Gear Reducer