The 2500P-ECC1 Ethernet Communications Coprocessor provides state-of-the-art features and performance for Ethernet communication when using CTI 2500 Series® Processors. It uses a dynamic memory cache to give extremely quick response to queries from HMI systems, with no dependence on CPU scan time. It also provides a fully configurable interface for setting up Modbus-TCP, and CAMP client/server communications. Most importantly, it features a completely new facility which provides peer-peer network communications between PLCs using a new "report on change" protocol.
See the release notes