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福克斯波罗模块卡件【P0400VE】产品简介:
S7-226的编程口物理层为RS-485结构,SIEMENS提供MicroWin软件,采用的是PPI(Point to Point)协议,可以用来传输、调试PLC程序。在现场应用中,当需要PLC与上位机通讯时,较多的使用自定义协议与上位机通讯。在这种通讯方式中,需要编程者首先定义自己的自由通讯格式,在PLC中编写代码,利用中断方式控制通讯端口的数据收发。采用这种方式,PLC编程调试较为烦琐,占用PLC的软件中断和代码资源,而且当PLC的通讯口定义为自由通讯口时,PLC的编程软件无法对PLC进行监控,给PLC程序调试带来不便。
CUSTOM CONTROL SENSORS 480VAC 15A 7500 PSIG PRESSURE
ATLAS COPCO 400V 30A AC POWER BOX 9040120203
BANNER FIBER OPTIC CABLE WITH PANCAKE HEAD IR2.53SM2.5
ALLEN BRADLEY GLASS FIBER OPTIC CABLE 99-59-1 SER. C N
HONEYWELL 120VAC TEMPERATURE CONTROLLER DC3004-0-100-1-
WIREMOLD 5741 SWITCH AND RECEPTACLE BOX BUFF FITTING, N
NUMATICS 150PSIG-AIR, 24VDC, 4.0W, SOLENOID VALVE I23BA
HONDA MR-8L 8 CONTACT RECTANGULAR CONNECTOR
NUMATICS F+R100 0-160 PSI PRESSURE GAUGE
WATT STOPPER 120/277V, 20A, 1HP SLAVE PACK S120/277/347
SQUARE D 575V 30A TYPE 12/3R STARTER MOTOR CONTROL, 853
ASCO RED-HAT 110/120V 15.4W 1" NPT SOELNOID VALVE, EF82
HONEYWELL, 517 KPA, 75 PSI, 1/2" NPT, 1/4" NPT, SOLENOI
ISSC 1213-1-A-B RESISTIVE SENSITIVE RELAY,
ASCO RED-HAT 110/120V 17.1W 1/4" NPT SOLENOID VALVE, EF
NAMCO 20-230VAC/DC 0.5A CYLINDICATOR SENSOR, EE230-2782
TUCKER 12' OAL CABLE E1011200 NEW
BELDEN-M CABLE 50119-0092 NEW
TURCK 250V, 4A CORDSET CONNECTOR RS 4T-J14 LOT OF 5 NE
AMPHENOL ADVANTAGE LINE P27954 CABLE PLUG, LOT OF 6, NE
RED LION CONTROLS PRS1-1011 PLUG-IN SPEED SWITCH,
BURKERT 480VAC 30VDC 3A THERMO SWITCH, 8400 NEW
BRAD HARRISON MPIS 410P401 MULTI-PORT INTERCONNECT SYST
BRAD HARRISON MPIS MULTI-PORT INTERCONNECT SYSTEM, 702P
PEPPERL + FUCHS 110/120VAC COIL, 250V, 4A SAFETY RELAY
IFM EFECTOR 20-250VAC PHOTOELECTRIC SENSOR 0I0008 0IT-F
STI MICROSAFE MC4216XE 42732-0160 TRANSMITTER,
PULSOTRONIC 90250VAC 4-PIN PROXIMITY SENSOR 39952-05
ADVANCE 480V 60HZ BALLAST 71A5750-001D NEW
DWYER 117V 10A 25 PSIG 120°F PHOTOHELIC PRESSURE SWITCH
RED LION CONTROLS IMP20162 115/230 VAC APOLLO INTELLIGE
BANNER PD49VP6C300Q PICODOT LASER LIGHT