Operational Manual
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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
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3. Train A:
This Screen only displays the process of Train A including all respective process variables and
statuses.
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4. Train B:
This Screen only displays the process of Train B including all respective process variables and
statuses.
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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
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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.
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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.
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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
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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
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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.
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