The 2500P-ECC1 module communicates with the 2500 Series® controller via a high speed

Ethernet link. Data is transferred between the controller and module using a high density

Ethernet messaging protocol, which is capable of transferring a large amount of data while

minimizing the impact on the 2500 Series® controller.  The controller processes data transfer

requests from the 2500P-ECC1 in a configurable time slice, allowing the user to limit the amount

of scan time used to service the requests.  Up to four 2500P-ECC1 modules can communicate

concurrently with a 2500 Series® controller.

Client requests to read data from the 2500 Series® controller are serviced from a data cache

maintained on the 2500P-ECC1 module. The frequency of cache updates is user configurable.

This data cache design allows protocols such as CAMP Server to provide rapid response to a high

volume of requests from SCADA workstations, HMI equipment, and operator panels while

providing a means to manage data quality.