详细介绍
Schneider 140ARI03010
---
计算机与PLC之间的通信是建立在以RS232标准为基础的异步双向通信上的,FX系列PLC有其特定的通信格式,整个通信系统采用上位机主动的通信方式,PLC内部不需要编写专门的通信程序,只要把数据存放在相应的数据寄存器中即可,每个数据寄存器都有相应的物理通信地址,通信时计算机直接对物理通信地址进行操作。通信过程中,传输字符和命令字以ASCⅡ码为准,常用的字符及其ASCⅡ码对应关系。
计算机与PLC进行通讯时,计算机与PLC之间是以帧为单位进行信息交换的,其中控制字符ENQ、ACK、NAK,可以构成单字符帧发送和接受,其余的信息帧发送和接受时都是由字符STX、命令字、数据、字符ETX以及和校验5部分组成
***********************************
厦门莫格电气自动化有限公司
:刘水仙(销售工程师)
手 机:/
Q Q:3443643092
邮 箱:3443643092@qq.com
传 真:(请备注刘工收)
主营业务:AB,ABB,GE,本特利,福克斯波罗,英维斯,西屋,艾默生,横河
***********************************
ALLEN BRADLEY MATGUARD SAFETY MAT 440F-M1015BYNN, NEW
TURCK BIM-AKT-AD4X PROXIMITY SENSOR, NNB
EATON CUTLER-HAMMER 20-250VAC 3-PIN PROXIMITY SENSOR E57MAL18A2B1
EATON CUTLER-HAMMER 6-48VDC INDUCTIVE PROXIMITY SENSOR, E57LAL12T110SD *NEW*
AIRPAX 3 DIGITAL TACHOMETER TACHTROL 3
FOXBORO TEMPERATURE SENSOR D3-130-012
BAUMER ELECTRIC IFRM 06P1501/S35L NIB
PEPPERL + FUCHS 20-2450VAC INDUCTIVE SENSOR NJ30+U2+W+BHMSS?P3-N.O. *NEW*
FOXBORO PRESSURE TRANSMITTER IFL10-D50H11F-Z?1F3 103981
ALLEN BRADLEY 200MA INDUCTIVE PROX. SENSOR SER.A NIB 871Z-DW2NP12-D4 100963
TURCK QUICK MOUNT FOR 18MM SENSOR QM-18L-T
SMC DC12-24V PNEUMATIC AUTO SWITCH D-J79W LOT OF 2
HONEYWELL MICRO SWITCH HEAVY DUTY LIMIT SWITCH LSF3K58
OMRON * PROXIMITY SWITCH * E2E-X7D1-N
FOXBORO ANALYTICAL CONDUCTIVITY SENSOR 871LC-EV3-1
BALLUFF SENSOR BES 517-400-S45
PEPPERL + FUCHS PROXIMITY SENSOR 85501 / NBB8-18GM50-E 101069
BANNER MULTI BEAM SCANNER BLOCK FX1 A LM3
BANNER OPTICAL TOUCH BUTTON SENSOR OTBVP6QD
ROCHESTER INSTRUMENT SYSTEMS 4-20mA 85-150VAC CURRENT TRANSDUCER UCXAF6
BANNER OPTICAL SENSOR BUTTON SWITCH OTC-1-BK 99467
TURCK CUSHION MOUNT BRACKET FOR 30MM SHIELDED SENSOR, CM-30 *NEW*
IFM ELECTRONIC 18-30VDC 5-100 PSI RANGE 1/4" NPT PRESSURE SENSOR, PB5224
NEO-DYN ITT INDUSTRIES ADJUSTABLE PRESSURE SWITCH 130P1S71
PEPPERL + FUCHS PROXIMITY SWITCH NL2-F-U-1.025-B?HMS3
ALLEN BRADLEY 40-250V AC/DC 3-PIN PROXIMITY SENSOR 871TM-B2N12-N3
EMECANIQUE 10 A AUXILIARY CONTACT BLOCK LA1 DN40 *LOT OF 5*