描述
什么是PLC的響應(yīng)時間?在輸出采用循環(huán)刷新和直接刷新方式時,響應(yīng)時間有何區(qū)別?
從PLC收到一個輸入信號到PLC向輸出端輸出一個控制信號所需的時間,就是PLC的響應(yīng)時間,使用循環(huán)刷新時,在一個掃描周期的刷新階段開始前瞬間收到一個信號,則在本周期內(nèi)該信號就起作用了,這時響應(yīng)時間最短,等于輸入延時時間、一個掃描周期時間、輸出延遲時間三者之和;如果在一個掃描周期的I/O更新階段剛過就收到一個信號,則該信號在本周期內(nèi)不能起作用,必須等到下一個掃描周期才能起作用,這時響應(yīng)時間最長,它等于輸入延遲時間、兩個掃描周期時間與輸出延遲時間三者之和;在使用直接輸出刷新時,最長響應(yīng)時間等于輸入延遲時間、一個掃描周期時間、輸出延遲時間三者之和。
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算機控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動化控制系列
本特利,英維思,伍德沃德,福克斯波羅、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,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
Woodward 5464-768 CPU-DCS II
Woodward 5464-827 CPU MODULE
Woodward 5464-828
Woodward 5464-829
Woodward 5464-830 A/I 4-20
Woodward 5464-833 4 ch
Woodward 5464-834
Woodward 5464-836 REMOTE XCVR
Woodward 5464-843 NetCon CPU Card
Woodward 5466-006 4-20mA Input
Woodward 5466-017 2 CH ACTUATOR DRIVER
Woodward 5466-026 DUPLEX CUR IN
Woodward 5466-031 Netcon I/O Controller?????
Woodward 5466-032 FTIO MODULE
Woodward 5466-033 CPU Module
Woodward 5466-041 2C Pos Control
Woodward 5466-042 CPU(GAP Compatible)-DCS
Woodward 5466-061 Module Master CPU
Woodward 5466-063 NetCon CPU Card
Woodward 5466-074 CPU Mod
Woodward 5466-250 netcon B FTIO
Woodward 5466-253 MPU A I/O
Woodward 5466-258 NetCon/MicroNet Discreet I/O Card 24/12
Woodward 5466-268
Woodward 5466-272 Solnd Mon
Woodward 5466-274 FTIO
Woodward 5466-315 NetCon/MicroNet Analog I/O Card
Woodward 5466-316 MPU A I/O
Woodward 5466-332 ANALOG I/O 24/8
Woodward 5466-336 SIO
Woodward 5466-340 Netcon F/O XCVR
Woodward 5466-348 Netcon 5000B SIO
Woodward 5466-351 Netcon CPU 040 with LLC Memory
Woodward 5466-352 CPU Module
Woodward 5466-353 MAIN XCVR
Woodward 5466-355 REMOTE XCVR
Woodward 5466-409 NetCon/MicroNet CPU Card
Woodward 5466-411 Ethernet Module(RJ45)
Woodward 5466-419 NT CPU
Woodward 5466-425 24/8A I/O
Woodward 5466-458
Woodward 5500-018
Woodward 5500-134 Ext.Card
Woodward 5500-159C 505 Relay Board
Woodward 5500-510
Woodward 5500-559 Buffer Board
Woodward 5500-563
Woodward 5501-003 Circuit Board for Peak 150
Woodward 5501-340
Woodward 5501-341
Woodward 5501-367 FTM(Field Termination)
Woodward 5501-376 FTM,ANALOG,HI DENS
Woodward 5501-411
Woodward 5501-428 2 CH ACTUATOR DRIVER
Woodward 5501-432 2 CH ACTUATOR DRIVER
Woodward 5501-465
Woodward 5501-466 MicroNet Power Supply
Woodward 5501-469 CPU LM6000 PC&PA
Woodward 5501-470 CPU_040 W/O LL?Memory??
Woodward 5501-471 NetCon/MicroNet SIO Card
Woodward 5501-510 FT Relay
Woodward 5503-173 MicroNet VME CPU Adapter
Woodward 5503-279 TC/RTD
Woodward 5503-282 FTM,analog
Woodward 5503-335 CPU
Woodward 6945-377 3103 Gas Fuel Valve
Woodward 8200-015 Peak 150(HVAC-No ModBus)
Woodward 8200-019 PEAK 150
Woodward 8200-177 DRIVER,EM DIGITAL/ANALOG
Woodward 8200-203 ProTech 203
Woodward 8200-226 SPC(servo position controller)
Woodward 8200-314 GS/LQ Digital Driver
Woodward 8220-805 Final Driver
Woodward 8226-043 OCP(operator control panel)
Woodward 8230-568 Control Panel
Woodward 8230-805 FINAL DRVR
Woodward 8230-815 HP Final Drive
Woodward 8230-827 LP Final Driver
Woodward 8230-840
Woodward 8230-841
Woodward 8230-896 Final Driver-Water
Woodward 8230-898 FINAL DRVR
Woodward 8234-167O 501 Chassie
Woodward 8234-213 Chassis-NetCon A
Woodward 8234-346A 501 Chassie
Woodward 8236-026
Woodward 8236-027 Operate Control Panel
Woodward 8236-039 OCP(operator control panel)
Woodward 8236-039 OCP(operator control panel)