The T2550 programmable automation controller is scalable and can be configured to meet the system size of a typical power control system. It consists of:
Each redundant pair of T2550 controllers can support 128 I/O points on the local rack connected by a parallel bus. It can also be extended to connect more than seven T2550 extension racks. Multi-T2550 control units can be connected through ELIN control network to build a large-scale distributed control system.
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The network topology structure of typical T2550 control system is as follows:
