Real time and stability AI (AnalogInputs) the plc controller manufacturers amount of operation of the system has a greater influence , especially when many larger impact AI module . The main reason is : I-8000 in the CPU module is only just a 40MHz frequency controller 80188 , and the data processing capability , storage space is limited , leading to rapid operation of the logic processing, and event response is no less powerful IPC , the CPU time to complete the process the A / D sampling must maintain synchronization , a series of process conversion, storage , processing and the like to complete the operation , time-consuming , so when the number of AI than the channel to be completed for a long time , is bound to affect the stability of the real-time sampling and systems . Typically , I-8000 in a module, generally not more than two such as I-8017H series AI module better.
Impact of relay output modules for the entire system, the largest , handled properly, will cause the entire system to crash and frequent crashes, motherboard burnout phenomenon , due to the power supply I-8000 module is generally 10 ~ 30VDC, the total input power as 20W, unlike the IPC input power 250W so great, especially if high-power relay output module relay module plug put in too much, because the system of energy supply shortage will cause its output is not normal, control systems often malfunction, cause system crashes, crashes, and even lead to burn out the control board , the system 's stability , security, and reliability there are many hidden factors .