文档介绍：. ' .... .....
S7-300 CP341 作主 S7-200 作从的 Modbus 通信
munication -- S7-300 CP341 as Master and S7-200 as Slave
Getting Started Edition (2009 年 11 月)
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摘要自动化各个厂家在工业控制通信方面都有各自的通信协议及方式。西门子控制产品中通
信的主要方式有 MPI,Profibus,。在现场应用中,往往需要两个厂家的控制器进行
通信交换数据。Modbus 通信是常用的一种。本文就以 CP341 都作为 Modbus 主站,S7-
200 作为 Modbus 从站的通信实验作介绍。
关键词 CP341 S7-200 Modbus
Key Words CP341 S7-200 Modbus
IA&DT Service & Support Page 2-24
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目录
S7-300 CP341 作主S7-200 作从的Modbus通信........................................................................... 1
............................................................................................................. 4
软件环境............................................................................................................................... 4
STEP7 SP3........................................................................................................... 4
CP PtP Param SP8............................................................................................... 5
CP PTP Modbus Master .................................................................................... 5
STEP 7 MicroWIN SP6......................................................................................... 5
-STEP 7-Micro WIN 32 Instruction Library ............................................... 5
硬件列表............................................................................................................................... 5
硬件安装............................................................................................................................... 5
2. CP341 作Modbus主站的设置与编程......................................................................................... 8
CP341 作Modbus主站的硬件组态.....................................