SIEMENS 300PLC series has 160MM rail (model is 6ES73901AB600AA0) what is it used for? It is too short, put a power, put a CPU on the full, and a module can not be put into use, what's the use?
The length of the guide rail is divided into several kinds, and can be selected according to its hardware configuration. Too much of it is a waste. So basically choose the module, and then select the guide rail according to the specific installation size. The order number of the rails of different lengths (that is, the model inside your problem) is different. So you have to check it yourself. Or tell your supplier what size you need. Let him check for you.Some small systems require only one integrated PLC (such as 313C) to satisfy the control. Then just choose the short one.
This is sometimes used. Our previous system uses the 160mm rail because we don't need to extend the module with only one power source and a CPU. What we do is DP communication, and CPU control frequency converter by DP communication mode.
The SIEMENS 300PLC series has a 160MM guide that is used to secure the module.Guide (TTW): metal or other materials made of grooves or ridges, can withstand, fixed, and guide the movement of devices or equipment, and reduce its friction of a device. A longitudinal groove or ridge on the surface of a guide, used for guiding and fixing machine parts, special equipment, instruments, etc.. The guide rail, also known as linear guide, linear slide rail, for linear reciprocating movement, linear bearings have higher than the rated load, and can bear a certain torque, can achieve high precision linear motion under high load. The main rail is divided into two major categories: roller guides and ball bearings.
