SIEMENS / MITSUBISHI / OMRON PLC dynamic password setting new method

With the development of economy, the degree of automation of the product is more and more high, a lot of field is applied to PLC, make the application of PLC more and more widely. A lot of technical personnel and equipment manufacturers in order to protect their own knowledge of the product and economic benefits, very popular in the PLC dedicated encryption, so that third parties can not read from the PLC program, the source code is only their own.
There are 2 encryption methods, the majority of the conventional is still based on the PLC manufacturers of encryption technology, download the program set the password, the third party can not read the program from the PLC. Different PLC encryption degree is different, some very easy password is cracked.
Unique encryption method, PLC dynamic password settings. The PLC encryption using PLC algorithm in the form of the original secret, under certain conditions, PLC stopped working, but after entering the password PLC can return to normal work, a password can be used only once, the failure of the password. If you need to enter the password again it is necessary to re provide a password such algorithm does not have a certain knowledge of the technical staff is difficult to crack can play the purpose of intellectual property protection.
Need to communicate the exchange of friends can call to help you a helping hand