I am working on improve the reliability of our rotation monitor for about 30 shafts in the plant. Currently, the proximity sensor is connected into Novatech D3 DCS, where the fastest speed of DI scan is 0.25 seconds and the program scan is 1 second. During operation, this combination lost a lot of pulse and I have to extend the failure time far more longer. The highest frequency in my applicaiton is about 10Hz.
My current idea is to have a CompactLogix and normal DI card to catch the pulse. But I don't know how to determine the highest frequency this comnination can catch. So that I can choose the right PLC and DI card. Any thought?
My current idea is to have a CompactLogix and normal DI card to catch the pulse. But I don't know how to determine the highest frequency this comnination can catch. So that I can choose the right PLC and DI card. Any thought?