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City of Everett,WFP PLC 135-12589-12002 <br /> Additional Services <br /> • QCC working under separate Contract with Seahurst Electric will upgrade the <br /> existing N-iron 9000 switches to N-Tron 7900 series switches so their network <br /> health can be directly monitored by SCADA and N-view software. Hardware <br /> components required for upgrade will be procured directly by the COE plant <br /> Personnel. <br /> • It was also found that the A01's implemented within the Master PLC program <br /> and used to monitor the network parameters,causes excessive network traffic <br /> and unacceptable system latency.The A01 approach will be abandoned, and an <br /> alternative monitoring scheme using Simple Network Management Protocol <br /> (SNMP)will be developed in conjunction with an N-View OPC for data collection <br /> and display on the existing SCADA system. <br /> TASK 16 Filter Operation Documents <br /> Develop additional documentation for filters and their operation.These documents will <br /> be made available to City Personnel for their use and/or incorporated into the plant <br /> master drawing set: <br /> ■ Develop Control strategies for each filter mode of operation in greater detail <br /> than per the original proposal. Document to include a detailed description of <br /> each backwash step,event and transition. <br /> ■ Develop P&ID drawing for typical filter as no P&ID existed to-date <br /> ■ Develop two separate Filter State Diagrams for filter automatic backwash <br /> sequences(Basic and Alternate) to assist in functional testing procedures <br /> Task 17 Additional Wonderware Support <br /> Additional Wondware support development beyond simple coordination assumed for <br /> the original Proposal, Includes: <br /> • Working with on-site Staff to fine-tune Filter Console#4 application program <br /> and guide them through the process of replicating and adapting this template <br /> to additional consoles 1 through 3. <br /> Task 18 Additional Construction Coordination <br /> Includes additional planning and on-site coordination with the Contractor for <br /> maintaining facility in operation while removing consoles(TI RIO Trunk, BWFE <br /> temporary connection,temporary reconnection for Air Scour system). Assist Contractor <br /> in identifying conductors, connections and equipment interfaces critical to maintaining <br /> functional use. Assume 6 site visits at 4 hours plus supervisor time in the office. <br /> Also includes efforts to develop and implement temporary measures within <br /> Wonderware and the temporary filter PLC to maintain continuous operations for shared <br /> system resources and events.Additionally these measures helped facilitate effective <br /> communications between the existing TI PLC, master AB PLC,temporary filter PLC and <br /> multiple Wonderware applications. <br /> September 28, 2016 <br />