140CPU65160模块全新现货

易卖工控网（www.ymgk.com）提供”140CPU65160模块全新现货”，产品详情：品牌/厂家：、型号：140CPU65160、成色：全新、货期：现货 1天内发货、保修：180天，更多产品详情就上易卖工控网。

调试过程中遇到的问题及解决办法：

　　图纸和程序是根据水处理的工艺完成的，后来到了现场程序又根据实际的情况进行了修改，但是当时困扰我的问题，就是DP网络组态问题，总是DP站通信不上，通信距离又比较远，我需要一个一个的插头查看，一直到后来发现原来是后一个站的DP接头的拨码开关没有从OFF-ON，把拨码开关从OFF拨到ON问题排除，通信可以顺利的通信上了。

六、总结

　　这个项目之所以选择西门子的S7-315PN/DP这个型号，可以同时具备两个接口，支持可以PROFIBUS和以太网的通信协议，DP接口连接水处处理系统的分站，PN接口可以通过交换机和中控室上位机。从而实现远程控制和远程监控的功能。经过实践西门子S7-300系列的PLC是可以相信的，这个系统有运行了7年没有出现过问题。

Problems encountered during commissioning and solutions:
The drawings and procedures were completed according to the water treatment process. Later, the on-site procedures were modified according to the actual situation. However, the problem that bothered me most at that time was the DP network configuration. The DP station was always unable to communicate, and the communication distance was relatively long. I needed to check the plugs one by one. Until later, I found that the dial switch of the DP connector of the last station was not off-on, Turn the dial switch from off to on. The problem is eliminated and the communication can be carried out smoothly.
6、 Summary
Siemens s7-315pn / DP is selected for this project. It can have two interfaces at the same time, which can support the communication protocol of Profibus and Ethernet. DP interface is connected to the substation of water treatment system, and PN interface can be connected through the switch and the upper computer in the central control room. So as to realize the function of remote control and remote monitoring. After practice, Siemens S7-300 series PLC can be trusted. This system has been running for 7 years without any problems.