PLC 1 SEPTIC SYSTEM SCADA SYSTEM OPERATION MANUAL Revision 1.0 June 05, 2006
PLC 1 SEPTIC SYSTEM SCADA SYSTEM OPERATION MANUAL Revision 1.0 June 05, 2006 Table of Contents 1 Introduction... 2 2 Revision History... 2 3 Conventions... 2 3.1 Set Points and Process Values... 2 3.2 Equipment Colors... 3 3.3 Line sizes and colors... 3 3.4 Instrument Bubbles... 4 4 Sample SCADA Screens... 4 4.1 Septic Receiving Facilities Overview... 5 4.2 Septage Entrance Gate Pop Up Screen... 6 4.3 #3 Water Valve Pop Up Screen... 7 4.4 Control Set Points Screen... 8 May 30, 2006 Rev. 1.0 PLC 1 Septic System SCADA System Operation Manual Page 1
PLC 1 SEPTIC SYSTEM SCADA SYSTEM OPERATION MANUAL Revision 1.0 June 05, 2006 1 Introduction This document presents the sample SCADA screens and operation description for the Septic Receiving System at the Stockton Regional Wastewater Control Facility. PLC1 is an existing PLC for the automatic control of septic receiving system. SCADA screens will be mainly used for system monitoring only. No process logic changes are made in this existing PLC, however some program modifications are performed to make the room for a new Ethernet communication module in the existing PLC to communicate with new SCADA system. 2 Revision History The table below shows the history of revisions to this document. Rev. Description By Date 1.0 Issued for customer training Max Hanson/ 05-Jun-06 Imran Saeed 3 Conventions 3.1 Set Points and Process Values Set points appear with a black background inset field and white text. Process values will show an inset field with a white background and blue text. Status indicators also have the white inset field, but the foreground color may change depending upon the conditions and the background will turn yellow for abnormal situations. May 30, 2006 Rev. 1.0 PLC 1 Septic System SCADA System Operation Manual Page 2
Status Indicator Text Colors: Text Background Meaning Dark Red White Not called, inactive, off Dark Green White Called, active, on Gray White Not ready, unavailable for PLC control Black Yellow Alarm, abnormal condition 3.2 Equipment Colors Symbols for motor-driven equipment are animated with colors to reflect status. Valves symbols are also color-coded. Foreground Red Green Gray Yellow Foreground Red Green Gray Yellow Meaning Not called, inactive, off Called, active, on Not ready, unavailable for PLC control Alarm, abnormal condition Meaning Closed Opened (or called to open if no feedback) Not ready, unavailable for PLC control Alarm, abnormal condition 3.3 Line sizes and colors Where appropriate, major process lines are shown with 3D pipe symbols and are animated to show when fluid is flowing. Minor process lines are shown with a dark gray background and an animated foreground color. Minor process lines do not have 3D appearance and are smaller. Foreground Gray Blue Cyan Yellow Light Green Magenta Meaning No flow is present Plant water Miscellaneous minor process (e.g., scrubbant) Sulfur dioxide Chlorine or sodium hypochlorite Ferric Chloride May 30, 2006 Rev. 1.0 PLC 1 Septic System SCADA System Operation Manual Page 3
Pink Light Brown Teal White Polymer Sludge Storm or wastewater Air 3.4 Instrument Bubbles Many screens will be arranged to show process flow similar to a Process and Instrumentation Diagram (P&ID). Instrument bubbles will show tag names and will have the relevant process value displayed. These bubbles are animated and will turn yellow when an alarm is present at the instrument represented by the bubble. Clicking on the instrument bubble will open the appropriate pop-up screen (an example for a ph transmitter is shown below). 4 Sample SCADA Screens Sample SCADA screens for PLC-1 follow. These are the screens that will appear on the plant SCADA system. Septic receiving system is completely automatic and operators will only do monitoring of this system and will not operate the equipment from SCADA during normal operation. Please note that the sample screens show simulated data that may or may not be realistic. May 30, 2006 Rev. 1.0 PLC 1 Septic System SCADA System Operation Manual Page 4
4.1 Septic Receiving Facilities Overview This screen presents an overview of the Septic Receiving facilities. Septic receiving system is completely automatic and Operators will only do the monitoring of this system from the new SCADA system. May 30, 2006 Rev. 1.0 PLC 1 Septic System SCADA System Operation Manual Page 5
4.2 Septage Entrance Gate Pop Up Screen This presents the pop up screen for Septage enterance gate. When the OPEN button on this pop up screen is pressed, it will open the septage entrance gate, which automatically closes after a preset time. May 30, 2006 Rev. 1.0 PLC 1 Septic System SCADA System Operation Manual Page 6
4.3 #3 Water Valve Pop Up Screen This pop up screen shows the operating status of the #3 water valve. In Automatic Mode, it will be operated automatically through the automatic sequence, while in Manual mode operator may open and close this valve from SCADA system. Since the septic receiving system is completely automatic system, so during normal operation, this valve will operate in Automatic Mode. May 30, 2006 Rev. 1.0 PLC 1 Septic System SCADA System Operation Manual Page 7
4.4 Control Set Points Screen The pop-up screen is for the #3 water flush and dilution valves delay time set points. May 30, 2006 Rev. 1.0 PLC 1 Septic System SCADA System Operation Manual Page 8