Operational Manual Page 1 of 9 Overview: This HMI is designed to monitor and control the operation of OLD RO plant comprising trains A and B. HMI Operation: 1- Main Screen: This is the main page of HMI of the System which shows overview of overall process. From here operator can monitor the current status of both Trains A and B.Ths. screen displays all the process variables and status regarding complete RO Plant. 2. Navigation Bar: This navigation bar allows the operator to navigate through different paged of the HMI to overlook all the necessary parameters to operate the RO plant effectively Page 2 of 9 3. Train A: This Screen only displays the process of Train A including all respective process variables and statuses. . 4. Train B: This Screen only displays the process of Train B including all respective process variables and statuses. Page 3 of 9 5. Train A/B Start Stop Indication: HMI provides indication of current state of the respective train whether it is on or off. If on the System ON will provide green indication similarly if off the System Off will provide green indication respectively 6. Auto Re Flushing/Normal Operation Operator can select from HMI the operation of plant in both modes. Auto Reflushing as well as normal operation. In Auto Reflushing flushing starts after specific time interval given by operator and then plant starts automatically. While in normal operation plant will work in normal condition without reflushing 7. Indication of various field equipment All the pumps in the area are indicated on HMI in following shape. On running the pump shows green indication while in off state it will indicate red color. ‘’P’’ describes about the start permissive. ’’R/L’’ describes about remote or local selection. On trip state the icon ‘Trip’ will be visible. All valves in the area are indicated by following symbol on HMI .In open state the valve will indicate green color whereas in close state it will be in red color All filed process switches are indicated by following symbol on HMI .In normal state they will display green color while in abnormal state they will indicate red color Page 4 of 9 8. Mixer and DP Monitoring: HMI also provide indication of de chlorination system. From here the operator can monitor both the status of DP and mixer. This screen is identical for both train A and B. 9. SMBS PID Faceplate: HMI also provides faceplate to allow the operator to control basic operation of PID loop running SMBS. The operator can only select auto vs manual mode all other tuning parameters will be in access of Engr. Page 5 of 9 10. Timers Tr A: This screen allows the operator to set timer values of all the process related time delays required for the operation of Train A. 11. Timers Tr B: This screen allows the operator to set timer values of all the process related time delays required for the operation of Train B. Page 6 of 9 12. KPIs Analog: This screen provides all the Analog Key Process Indicators of Both Trains 13. KPIs Digital: This screen provides all the Digital Key Process Indicators of Both Trains Page 7 of 9 14. Trip Set points: This screen provides the user to enter set points for trip conditions of various interlocks. This screen is password protected and only Engineer can change values .Operator will have only permission of viewing. 15. Alarm Viewer: This Screen comprises the alarm summary of the OLD RO Plant. Every Alarm related to process will be annunciate here on the Alarm viewer screen so that operator can take necessary action to maintain sustainability of the whole process Page 8 of 9 16. NORMALIZED PERAMEATE FLOW: This screen provide all the necessary parameters related to normalized permeate flow. 3. Diagnostics: This screen displays the necessary PLC hardware diagnostics for monitoring health of the System. Page 9 of 9