FURNAS ELECTRIC CO 63A1A1F
FURNAS ELECTRIC CO 63A1A1F
MITSUBISHI FX-8EYT-ESS/UL
OMRON E32-DC200B4
福州卓凯电子科技有限公司
AB 系列 优势1746 1756 1770
1771 1747 1336 PLC 系列触摸屏 2711系列。
西门子 6ES7-300 6DD 6FC 6SC 6GK系列。
FANUC A06B A20B A02B 驱动系列。
ABB DSQC 示教器 系列。
施耐德 140系列 PLC CPU 系列。
安川模块伺服控制器。
GE IC693 IC697 系列。
价格优势 欢迎咨询
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对于用户来说,在编写用户程序或选择设备时,必须清楚下面介绍的三个阶段,即用户程序执行过程的原理。
PLC采用集中处理的方法,即对输入扫描信号、执行用户程序和输出刷新都采用集中分批处理的工作方式。
输入扫描 在这一阶段中,PLC以扫描方式读入所有输入端子上的输入信号,并将输入信号存入输入映像区,输入映像存储器被刷新。在程序执行阶段和输出刷新阶段中,输入映像存储器与外界隔离,其内容保持不变,直至下一个扫描周期的输入扫描阶段,才被重新读入的输入信号刷新。可见,PLC在执行程序和处理数据时,不直接使用现场当时的输入信号,而使用本次采样时输入到映像区中的数据。如果输入设备能使PLC输入端形成闭合回路,对应输入端编号的内部输入继电器内保存为“1”,即相当于继电器线圈导通。在程序执行过程中,该编号对应的触点动作;如果输入设备能使输入开路,则对应输入端编号的内部输入继电器内保存为“0”,即相当于继电器线圈没导通,在程序执行过程中,该编号对应的触点不动作。如果在PLC处于非输入扫描的阶段,PLC外的输入设备状态发生了变化,内部输入继电器也不会发生变化,要等到下一个输入扫描阶段才能根据此时的输入状态来刷新。所以,对于少于十几毫秒的输入信号,经常采集不到。
在程序执行过程中,同一周期内,前面的逻辑结果影响后面的触点,即后执行的程序可能用到前面的**中间运算结果;但同一周期内,后面的运算结果不影响前面的逻辑关系。该扫描周期内除输入继电器以外的所有内部继电器的**终状态(导通与否),将影响下一个扫描周期各触点的开与闭。
(3)输出刷新 程序执行阶段的运算结果被存入输出映像区,而不送到输出端口上。在输出刷新阶段,PLC将输出映像区中的输出变量送入输出锁存器,然后由锁存器通过输出模块产生本周期的控制输出。如果内部输出继电器的状态为“1”,则输出继电器触点闭合。全部输出设备的 。
WESTINGHOUSE 237A970G01 NSFP 237A970G01
WESTINGHOUSE 5880C88GO USPP 5880C88GO
FURNAS ELECTRIC CO 63A1A1F
WESTINGHOUSE ALT-ML-1-94VO USPP ALTML194VO
WESTINGHOUSE GMCP050K2C USPP GMCP050K2C
WESTINGHOUSE J3200 USPP J3200
WESTINGHOUSE OT2 USPP OT2
WESTINGHOUSE Z22A NSFP Z22A
FURNAS ELECTRIC CO 3RT1-926-1BD00 FNFP 3RT19261BD00
FURNAS ELECTRIC CO 3TF3-110-0BB4 USPP 3TF31100BB4
FURNAS ELECTRIC CO 49AB-T6 NSFP 49ABT6
FURNAS ELECTRIC CO SMFF01P USPP SMFF01P
ITE SIEMENS EQP-270 USPP EQP270
LANDIS & GYR PXP2.3LG NSPP PXP23LG
SIEMENS 3SB3000-1RA21 USPP 3SB30001RA21
SIEMENS 6ES5-910-0AA41 NSPP 6ES59100AA41
SIEMENS 6FX4-002-2CA31-1AF0 USPP 6FX40022CA311AF0
SIEMENS 8WA1010-1PH01 NSFP 8WA10101PH01
TEXAS INSTRUMENTS PLC 505-4932-A NSFP 5054932A
FURNAS ELECTRIC CO 63A1A1F
SICK OPTIC ELECTRonIC FGSS-600-13 USPP FGSS60013
SICK OPTIC ELECTRonIC VL180-P430 USPP VL180P430
SICK OPTIC ELECTRonIC WT9-2P620 NSFP WT92P620
DODGE 120351 NSFP 120351
DODGE 41511265TR NSFP 41511265TR
ALLEN BRADLEY 1336-BDB-SP6D USPP 1336BDBSP6D
ALLEN BRADLEY 1492-CABLE001G NSFP 1492CABLE001G
ALLEN BRADLEY 1606-XL60D FNFP 1606XL60D
ALLEN BRADLEY 1788-MCHKR USPP 1788MCHKR
ALLEN BRADLEY 20DD-011-A-3-EYNAEBNE USPP 20DD011A3EYNAEBN
ALLEN BRADLEY 592-EEFD USPP 592EEFD
ALLEN BRADLEY 800A-M2FG NSFP 800AM2FG
ALLEN BRADLEY 800H-W100E-RUN-DOWN-UP NSPP 800HW100ERUNDOWN
ALLEN BRADLEY 800T-N93 NSPP 800TN93
ALLEN BRADLEY 855T-B24DN4 NSPP 855TB24DN4
BANNER ENGINEERING AT-AM-2A-YEL USPP ATAM2AYEL
BANNER ENGINEERING MSE-1224Y NSPP MSE1224Y
BANNER ENGINEERING S18LGRYPQ NSFP S18LGRYPQ
BANNER ENGINEERING T86EVQ USPP T86EVQ
PHOTOSWITCH 871A-TS3-RM NSFP 871ATS3RM
SIEMENS 6SE6-440-2UD17-5AA1 NSFP 6SE64402UD175AA1
WESTINGHOUSE 1883A97G01 USPP 1883A97G01
WESTINGHOUSE 449D597G06 NSFP 449D597G06
WESTINGHOUSE 8837D33A02 USPP 8837D33A02
WESTINGHOUSE CAY-22238 USPP CAY22238
WESTINGHOUSE HM2P400X5W USPP HM2P400X5W
WESTINGHOUSE NL-753 NSPP NL753
WESTINGHOUSE SSK2 NSFP SSK2
FURNAS ELECTRIC CO 3RT1-017-1AP01 FNFP 3RT10171AP01
FURNAS ELECTRIC CO 3SB39-30-0EB6 NSFP 3SB39300EB6
FURNAS ELECTRIC CO 43EP32AC USPP 43EP32AC
FURNAS ELECTRIC CO 63A1A1F
FURNAS ELECTRIC CO E41 NSFP E41
ITE SIEMENS BQD-315 USPP BQD315
LANDIS & GYR 536-378 NSFP 536378
SIEMENS 2801324-1 NSPP 28013241
SIEMENS 6ES5-305-7LA11 NSFP 6ES53057LA11
SIEMENS 6EW1-881-8AA USPP 6EW18818AA
SIEMENS 6SN1-145-1AA01-0AA0 USPP 6SN11451AA010AA0
SIEMENS XOL1020-25 USPP XOL102025
SICK OPTIC ELECTRonIC DGS20-3F40300 USPP DGS203F40300
SICK OPTIC ELECTRonIC PL22-1 NSFP PL221
SICK OPTIC ELECTRonIC WT18-P112 USPP WT18P112
DODGE 117168 USPP 117168
DODGE 26Q20R56 USPP 26Q20R56
ALLEN BRADLEY 12M0900094-00 USPP 12M090009400
ALLEN BRADLEY 1485P-P4R5-MN5 USPP 1485PP4R5MN5
ALLEN BRADLEY 1494V-DR611 USPP 1494VDR611
ALLEN BRADLEY 1771-OFC NSPP 1771OFC
ALLEN BRADLEY 20AD014A0AYNANC0 NSFP 20AD014A0AYNANC0
ALLEN BRADLEY 509-TOD-B1C NSFP 509TODB1C
ALLEN BRADLEY 800E-3DL3RX11 NSFP 800E3DL3RX11
ALLEN BRADLEY 800T-16HR4KL8AX NSFP 800T16HR4KL8AX
ALLEN BRADLEY 800T-J5A USPP 800TJ5A
ALLEN BRADLEY 845H-SJDA22CGY2C USPP 845HSJDA22CGY2C
ALLEN BRADLEY X229484 NSFP X229484
BANNER ENGINEERING M18SP6RQ USPP M18SP6RQ
BANNER ENGINEERING QS18VP6LDQ8 NSFP QS18VP6LDQ8
BANNER ENGINEERING SMI912LVQD NSPP SMI912LVQD
PHOTOSWITCH 42SML-7110 NSPP 42SML7110
SIEMENS 10545 NSPP 10545
WESTINGHOUSE 1725A08G02 NSPP 1725A08G02
WESTINGHOUSE 373B331G21 NSPP 373B331G21
WESTINGHOUSE 758C433A13 USPP 758C433A13
WESTINGHOUSE BF33F USPP BF33F
WESTINGHOUSE HF3015 USPP HF3015
WESTINGHOUSE NH33 USPP NH33
WESTINGHOUSE RH150P NSFP RH150P
FURNAS ELECTRIC CO 3RH1-911-1GA22 FNFP 3RH19111GA22
FURNAS ELECTRIC CO 3SB3111-0DA61 USPP 3SB31110DA61
FURNAS ELECTRIC CO 63A1A1F
FURNAS ELECTRIC CO 3VU9-138-2AA00 USPP 3VU91382AA00
FURNAS ELECTRIC CO 8WA1-851 NSPP 8WA1851
ITE SIEMENS 5SY6-310-8 USPP 5SY63108
ITE SIEMENS SN423 USPP SN423
SIEMENS 1FK6063-6AF71-1TB0 USPP 1FK60636AF711TB0
SIEMENS 6DD1642-0BC0 NSFP 6DD16420BC0
SIEMENS 6ES7-407-0KA02-0AA0 USPP 6ES74070KA020AA0
SIEMENS 6SL3-0400-JA01-0AA0 NSFP 6SL30400JA010AA0
SIEMENS S30810-Q2260-X000-C2 USPP S30810Q2260x000C
SICK OPTIC ELECTRonIC C40S-0703DA010 USPP C40S0703DA010
SICK OPTIC ELECTRonIC MB-W45A-QR USPP MBW45AQR
SICK OPTIC ELECTRonIC WS27-2D730 NSFP WS272D730
DODGE 107298 NSFP 107298
DODGE 20Q30R56 NSFP 20Q30R56
ALLEN BRADLEY 100-M05NKD3S NSPP 100M05NKD3S
ALLEN BRADLEY 140M-F8E-C45 NSPP 140MF8EC45
ALLEN BRADLEY 1492-SP1B130 NSFP 1492SP1B130
ALLEN BRADLEY 1764-RPLTB2 NSFP 1764RPLTB2
ALLEN BRADLEY 2090-CFBM7DF-CEAA05 NSPP 2090CFBM7DFCEAA0
ALLEN BRADLEY 40146-048-55 NSPP 4014604855
FURNAS ELECTRIC CO 63A1A1F
ALLEN BRADLEY 700-HN264 NSFP 700HN264
ALLEN BRADLEY 800H-AR1BP NSFP 800HAR1BP
ALLEN BRADLEY 800T-FXP16XD4 NSFP 800TFXP16XD4
ALLEN BRADLEY 802X-A7 NSPP 802XA7
ALLEN BRADLEY SP-120663 USPP SP120663
BANNER ENGINEERING K50BCLXBXPQ NSPP K50BCLXBXPQ
BANNER ENGINEERING Q60VR3AFV1000Q1 NSPP Q60VR3AFV1000Q1
BANNER ENGINEERING SM91RSRQD NSPP SM91RSRQD
PHOTOSWITCH 42GRF-9000-QD FNFP 42GRF9000QD
FURNAS ELECTRIC CO 3SB3400-1QA USPP 3SB34001QA
WESTINGHOUSE 1541A11G01 USPP 1541A11G01
WESTINGHOUSE 313C590G11 NSFP 313C590G11
WESTINGHOUSE 7379A93G01 USPP 7379A93G01
WESTINGHOUSE BFD02T NSPP BFD02T
WESTINGHOUSE HMCP400X5W USPP HMCP400X5W
WESTINGHOUSE MCP0322CR USPP MCP0322CR
WESTINGHOUSE PB1VPC NSFP PB1VPC
FURNAS ELECTRIC CO 63A1A1F
FLENDER KAF80K USPP KAF80K
FURNAS ELECTRIC CO 3RT1035-1AK60 USPP 3RT10351AK60
FURNAS ELECTRIC CO 3SB03-PEG NSFP 3SB03PEG
FURNAS ELECTRIC CO 3UA50-00-1E USPP 3UA50001E
FURNAS ELECTRIC CO 69WA4 USPP 69WA4
ITE SIEMENS 5SX1-304-7 USPP 5SX13047
ITE SIEMENS NGB2B030 USPP NGB2B030
PYROTRonICS ADBX-11 NSFP ADBX11
SIEMENS 5SQ1310-0KA50 NSFP 5SQ13100KA50
SIEMENS 6ES7-234-4HE30-0xB0 NSFP 6ES72344HE300xB0
SIEMENS 6SE6-410-2UB11-2AA0 NSFP 6SE64102UB112AA0
SIEMENS LBO/K915-SP-III4-1AH USPP LBOK915SPIII41AH
SICK OPTIC ELECTRonIC 6020342 USPP 6020342
SICK OPTIC ELECTRonIC LBST-32900 NSFP LBST32900
SICK OPTIC ELECTRonIC WL36-B330 USPP WL36B330
FURNAS ELECTRIC CO 63A1A1F
DODGE 031567 NSFP 031567
DODGE 1610-X-1-3/16 NSFP 1610x1316
ALLEN BRADLEY 100-C16B10 NSPP 100C16B10