Hello. Hope I'm in the right spot. I was wondering if anyone had an experience with a PLC based excitation controller for synchronous generator. I have received two bids for the excitation upgrade at a power plant. One firm specified a PLC based exciter and the other specified an application specific embedded controller. The PLC based controller worries me a little. First of all, in my opinion, its not typical. Second the controller looks "home made" in a sense. Since the industrial PLC is not capable of processing most of the external I/O from a generator they have to use over the counter transducers and modules to interface with the PLC. The company believes this to be an advantage and has referenced it's modular design and over the counter parts as evidence. I however see 40 different parts to make the same controller as the application specific controller does in one printed circuit board. Also the 40 different parts are composed of many different manufacturers. My gut feeling tells me this is an inferior system but the prices are so drastically different I'm worried management will not be able to over look that. Does any one have experience or opinion? Also, the application specific controller is a basler decs250. Thanks.