07BR61R1 GJV3074376R1
07BR61R1 GJV3074376R1
07BR61R1 GJV3074376R1
主要用于讨论了以下几方面问题：
串行通讯模板的基本信息
串行通讯模板的调试步骤
串行通信模块常用问题的下载链接
CP340/C P341/CP440/CP441-1/C P441-2模块是西门子S7-300/400系列PLC中的串行通讯模块，这些模块具有1个或2个( CP441-2)串行通讯接口(RS232C、20mA-TTY或RS485/422)。您可以使用这些通讯模块实现S7-300/400系统与其他串行通讯设备的数据交换，例如打印机、扫描仪、智能仪表、第三方MODBUS主从站、Data Highway、变频器，USS站等。
(ordinary cable or optical fiber) and network topology according to the actual situation of the application.
The popular PC and MS_ Windows 2000 have been widely used in various fields all over the world, becoming the de facto standard computer platform.
tower. The operating station 0S, the engineering station ES and the data gateway GS of the Industrial” system use this platform to ensure the system’s
Versatility, openness and ease of use, and bring great convenience to future technical upgrades and maintenance.
System engineering is very convenient. The configuration language is based on the IE061131 3 industry standard, providing function block diagram (FBD), ladder diagram
(LD), instruction list (IL), sequential function chart (SFC), structured text (ST) and other graphical configuration methods. The system contains about 220 functions
Algorithm library for energy blocks and a basic library 
