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I am working in a revamp that includes substitution of Siemens SIMATIC TI545 PLC (APT programming) with a Modicon Quantum (140 CPU 534 14). This is in a compressed air plant that has 5 Centac model 3C7OM4 centrifugal compressors. Each compressor has a dedicated TI545 PLC, it has a pneumatic system for flow air control that includes a PIC, CV for the bypass and the inlet valve. For the vibrations it has a Bently Nevada 9000 Series Vibration Monitor Model 24717-01.
It has been required that one Quantum PLC controls 3 compressors + a chiller and a second one for the other 2 and in a future 3rd compressor. Two PLCs for controlling 6 air compressors. The pneumatic system will be eliminated (this control will be done by the new PLC) and the vibration monitor will remain.
My personal opinion is to use one PLC to control one compressor (how it is done now), nevertheless, it will be done how I described. Maybe I am wrong about considering 1 PLC for 1 compressor or maybe my arguments about my point are not strong enough. I need some advice on how this change can impact the performance of the compressors or control or any recommendations.
P.D. my written English is not very good, if my message is not clear be free to ask any point.
It has been required that one Quantum PLC controls 3 compressors + a chiller and a second one for the other 2 and in a future 3rd compressor. Two PLCs for controlling 6 air compressors. The pneumatic system will be eliminated (this control will be done by the new PLC) and the vibration monitor will remain.
My personal opinion is to use one PLC to control one compressor (how it is done now), nevertheless, it will be done how I described. Maybe I am wrong about considering 1 PLC for 1 compressor or maybe my arguments about my point are not strong enough. I need some advice on how this change can impact the performance of the compressors or control or any recommendations.
P.D. my written English is not very good, if my message is not clear be free to ask any point.