| 价格 | 面议 |
|---|---|
| 品牌 | TRICONEX |
| 区域 | 全国 |
| 来源 | 山西润盛进出口有限公司 |
详情描述：
FX2系列PLC的编程接口采用RS-422标准，而计算机的串行口采用RS-232标准。因此，作为实现PLC计算机通信的接口电路，必须将RS-422标准转换成RS-232标准。 RS-232与RS-422标准在信号的传送、逻辑电平均不相同。 RS-232采用单端接收器和单端发送器，只用一根信号线来传送信息，并且根据该信号线上电平相对于公共的信号地电平的大小来决定逻辑的“1”（-3～-15V）和“0”（ 3～ 15V）； RS-422标准是一种以平衡方式传输的标准，即双端发送和双端接收，根据两条传输线之间的电位差值来决定逻辑状态。RS-422电路由发送器、平衡连接电缆、电缆终端负载和接收器组成。它通过平衡发送器和差动接收器将逻辑电平和电位差之间进行转换 选用MAXIM公司的MAX202实现RS-232与TTL之间的电平转换。MAX202内部有电压倍增电路和转换电路，仅需 5V电源就可工作，使用十分方便；选用MAX490实现RS-485与TTL之间的转换。每片MAX490有一对发送器/接收器，由于通信采用全双工方式，故需两片MAX490，另外只需外接4只电容即可。 PLC的RS-422接口配接DB-25型连接器，而PC机一般用DB-9型连接器。硬件电路图如图1所示。 将RS-232的RS、CS短接，这样对计算机发送数据来说，PLC总是处于就绪状态。也就是说，计算机在任何时候都可以将数据送到PLC内。又由于DR、ER交叉连接，因此，对计算机接收数据来说，必须等待至PLC处于准备就绪状态。 NEW Cutler-Hammer 23-1405 Contact Finger Tips Cincinnati Milacron 3-531-3597A ESD Circuit Board SIEMENS C98043-A1047-L Control Board Honeywell 82408330-001 Hiway Logic Control Board Mitsubishi FX-1HC MELSEC Counter Block Module (2) NEW Westinghouse 165212 Size 1 Type N Contact Kits Allen-Bradley 1773-L1A PLC-4 Microtrol Controller Fisher PROVOX CL6862X1-A2 Redundant Termination Panel Fisher PROVOX CL6872X1-A2 Analog Termination Panel Mitsubishi AY40 MELSEC PLC Module (3) NEW Balluff BES-RXT-1805-J Proximity Sensors L-TEC 674956 Rev. D Welding Control Board New Allen-Bradley 102931 Rev. 07 Single Isolator Board Fisher PROVOX DM646X1-A3 Discrete Output Board Fisher PROVOX DM6311X1-A1 Analog Input Board GE Fanuc IC697MDL653 E Series 90-70 Input Module (2) NEW Datalogic S5-5-A2-37 Proximity Sensors New GE Fuji 6KV$-1PG05 A3603 AF-300V$ Module New STI F3ILP-20-HTC Fiber Optics Preamplifier Futec FS5000-2 MPU CPU Module Refurbished GE Fanuc IC600BF831 5-50VDC Input Module Micro Systems MC1460-REV C CPU Board OMRON 3G2C3-CPUA1-E CPU Module OMRON C500-RT002 Remote I/O Module 3G2A5-RT002-E IBM 67X1366 Robot Hand-Held Teach Pendant Daito XC-37 CCD Video Camera W/Sony DC-37 Power Unit SIEMENS C98043-A1047-L Control Board GE 531X171TMAABG1 MICRO APPL TB CARD NEW TURCK VB80-N7X9-5 8-Port Multi-Box With LED NEW TURCK VB80-N7X9-4 8-Port Multi-Box With LED Allen-Bradley 700-RTC00110U1 RTC Solid State Timer Reliance Electric 0-52838 USRA Drive Module Cincinnati Milacron 3-531-2171A Rev. G Circuit Board Refurbished By Advanced Technology Services (ATS) SIEMENS C98043-A1047-L Control Board Honeywell 30751856-001 Operator Station Memory Board Foxboro CM902WL I/A Series Power Module 2 - Rev. B NEW Gettys 11-0089-00 Control Module AEG Modicon PC-0984-385 Programmable Controller (6) Allen-Bradley 193-BSB Series B Overload Relays Refurbished Cincinnati Milacron 3-533-0040G Board Westinghouse NL-359 Numa-Logic Quad Timer Module NEW Allen-Bradley 1777-CB I/O Interconnect Cable ABB YB161102-BR/1 DSQC 125 RELAY BOARD DSQC125 NEW Acrison M-4-1415 Data Conv./Power Supply Board ABB YB560103-BD/4 DSQC 223 Robotic I/O Module Modicon AS-884A-211 Controller Module ANDERSON SERIES 781 PROCESS CONTROLLER Bailey Controls NBIM01 Network 90 Bus Interface Module FANUC A20B-2900-0860/02A Control Module OMRON C120F-CPUA7-EQ Programmable Controller New ABB GNT0164200R0003 PG6320 Wiring Board NEW FANUC A06B-6050-H050 Servo Amplifier Discharge Unit NAMCO CA210-40002 Absolute Encoder ABS/ENC New Siemens 6SN1-111-0AB02-0AA0 Simodrive Module SIEMENS C98043-A1047-L Control Board Siemens/TI 505-4232 110VAC Input Module W/Terminal Cincinnati Milacron 4-531-4020A Interface Circuit Board Honeywell 627-7030 CPU Module (5) Allen-Bradley 100-A09ND3 Ser. B Contractors 120V (5) Allen-Bradley 700DC-F400Z2 Ser. C 24V DC Relays (3) Allen-Bradley 100-A24ND3 Ser. C Contractors 120V Refurbished Monitor Labs ML 80340178-1 I/O Multimodule Foxboro CM902WL I/A Series Power Module 2 - Rev. B Milltronics ML10L1250 Airanger IV Control Board XYZ Electronics F0025-00121A Serial I/O Board XYZ Electronics F0025-00121B Serial I/O Board New RTP 021-021-5230-013 T 8437 16BOIDI Board New RTP 021-0210-010 Rev. R 8436/SS AI Gate Board GE Fanuc IC697MDL653 24VDC Input Module GE Fanuc IC697MDL750 24/48VDC Output Module NEW Banner Engineering MGAB-4 Machine Guard Module Allen-Bradley 100W-B300ND2 Size 5 Welding Contactor Refurbished Total Control OP2200B8K Operator Interface Honeywell 51305072-400 Rev. J CLCN I/O Control Board Allen-Bradley AF254 230/240VAC Operating Coil NEW Allen-Bradley 121584 Control Logic Drive Board (5) Texas Instruments TI 500-5001 110VAC Input Modules New Siemens 6EC1-470-0A Control Board Allen-Bradley 1771-IEC Analog Input Module PULNIX TM-540 High Resolution Machine Vision Camera Reliance Electric 802816-1RD Driver Module Cincinnati Milacron 3-531-2171A Rev. G Circuit Board FANUC A20B-2900-0841/01A Control Module FANUC A20B-1000-0913/04A Interface Converter Board
| 联系人 | 白佳乐 |
|---|
