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Clif Mock Company
E24-2 System Monitor and Report Generator
Operator’s Guide
Revised: January 21, 1999
Table of Contents
1. INTRODUCTION *
2. DATA DISPLAY *
3. MRP OPERATION *
4. TRANSACTION REPORTING *
5. PARAMETER SETTINGS *
1. INTRODUCTION
This manual specifies the operation of E24-2 System Monitor and Report Generator (hereafter referred to as the MRP).
The MRP is a PC-based program that monitors the entire sampling system and generates transaction reports. The MRP has the following features:
The MRP is powered through an uninterruptable Power Supply (UPS). The UPS smoothes line power and will provide power for a short time in the case of line outages. The UPS will power the MRP long enough for an operator to print reports and properly shut down the MRP program and the computer.
2. DATA DISPLAY
The Data Display is as shown below. This area shows the operator all the operating data from each E24-2 controller on the network. The data for each "line" is received in a single status request from each E24-2. The selected E24-2 units are polled continuously every second, so screen data will be up to date within the last second. In the event that an E24-2 unit is taken off line and a different unit is installed in its place, the E24-2 can be loaded with the most recently received operating data values. Each of the columns of data is explained below.
Lines marked with the check mark symbol indicate lines selected for transaction monitoring. Although the line has been selected, transaction reports do not necessarily need to be generated (they may just be monitored). But a line must be selected before any data will appear for that line. Lines that are not being monitored, or those where the E24-2 is turned off should not be selected.
The Data Display below shows three lines being scanned. Line 2 is in normal status. Line 3 is highlighted in yellow indicating that an alarm was acknowledged but the alarm has not been reset. Line 7 is in alarm status and has not been acknowledged.
2.1. Command Buttons
The left and right buttons are used to advance the operator attention (or focus) from one line to the next. Example, the left command button will change the focus from line 2 to line 1. The right command will advance the focus from line 3 to line 4.
The Find command requests that the MRP poll every line and start monitoring all lines. The operator is not required to click on every line if this command button is used. See the Line command below.
The Transaction Reporting button allows the operator to go to the Transaction Reporting screen described later in this manual.
The Parameter Settings command button allows the operator to switch to the Parameter Setting screen described later in this manual.
The Exit command button stops the MRP monitoring system. After clicking upon the Exit button, the system displays a screen to insure the operator intended to exit the MRP system.
2.2. Line
This column indicates which line has been selected for further inquiries, such as, Transaction Reporting or Parameter Settings. A dot in the column indicates the selection. If the operator clicks on the Transaction Reporting button, this line will be the line displayed on the Transaction Reporting display.
2.3. Select
This column indicates what lines have been selected for monitoring. The operator can click on and off the monitoring.
2.4. Total
This is the total number of cubic meters of flow that have passed the flow meter. An operator can reset this total only on the E24-2.
2.5. Rate
This is the rate at which the product is flowing, measured in thousands of cubic meters per hour. If the rate is above its programmed maximum limit, MAX will be shown for the rate.
2.6. Composite/Intermediate Samples
This is the count of samples taken by the E24-2 since the count was last reset.
2.7. Composite/Intermediate Status
This is the current state of sampling. That status can be ENABLED, DISABLED, or OVERRUN. For the composite sampler the status can also be NOACK. NOACK means that the composite sampler failed to acknowledge a sample command. If the sample count is above the programmed maximum number, MAX will be shown in the status field.
This is the status of the chemical injection pumps. Some lines do not use both pumps and some lines do not use any pumps. That status can be Auto, Man, NORUN, OFF or FAULT.
2.9. Product
This is the name of the product that is being sent through the line. The available product names are UNLEADED, LEADED, FUEL OIL, GASOIL, JET, CRUDE, and OTHER.
3.1. Status Monitoring
The MRP will request the status of each E24-2 sampler selected. The E24-2 status command will return all the data that is being reported for the line. In normal monitoring, no other data is needed from the E24-2 unit. Each selected E24-2 unit is polled once per second. The information on the MRP display will be at most 1 second old. The E24-2 units are polled in a round-robin fashion.
3.2. Off-line E24-2 Units
The MRP will maintain constant connection to selected units. If the E24-2 responds with the status data, the line of data will be printed on the screen as soon as it is received. If the E24-2 does not respond to a status command, the command will be retried up to 3 times. If there is no response after 3 retries (a total of 4 requests), the E24-2 will be marked as off-line. This is an alarm condition and requires operator intervention. In this alarm condition, the MRP will issue a 1-second beep, will highlight the line in error in red, and a message box will be displayed indicating no response from the line.
A NO RESPONSE situation is most likely caused when an E24-2 unit is selected but is powered off. The situation can also be caused by a disconnected E24-2 or a faulty connector or wiring on the communications line.
If an E24-2 unit returns on-line after being off-line the operator will be notified with the line going back to a non-highlighted status.
The communications scheme utilizes a packet transaction method where each packet contains an error detection code. Packets that have data errors will be re-transmitted. If a packet cannot be delivered correctly (error free) after 10 attempts, the line will be marked with a communications error. In this alarm condition, the MRP will issue a 1-second beep, will highlight the line in error in red, and a message box will be displayed indicating a communication error on the line.
Communications errors are a result of receiving bad data for a packet. This is not the same as the previous error condition where an expected packet is never received. Errors of this type can occur when two units respond to the same address.
3.4. E24-2 Changes a Parameter
An operator may change any Run Mode parameter in any E24-2 that is on-line at any time. The MRP program will continue to run, requesting status data. If a parameter value is changed, the E24-2 will indicate that a parameter has changed. At that point, the MRP will automatically upload all parameters from that E24-2. In this way, the MRP will always have correct parameter data for every E24-2 unit that is on-line.
The MRP has the ability to record data for selected lines and print transaction reports. A line must be selected on the Data Display screen before Transaction Reporting can begin. Once selected, the operator can move from the Data Display to the transaction report screen for the selected line. Other lines can be displayed by pressing the left and right command buttons. Those buttons will access the selected lines in order.
4.1. The Transaction Reporting Screen
The following is a typical Transaction Reporting screen. The screen below shows a line that does not have any report data entered yet.
4.2. Command Buttons
- The left and right buttons are used to advance the operator attention (or focus) from one line to the next. Example, the left command button will change the focus from line 2 to line 1. The right command will advance the focus from line 3 to line 4. The line number is display in the banner line.
- The calculator button starts a calculator to assist the operator.
- The Parameter Setting command button allows the operator to switch to the Parameter Setting screen described later in this manual.
- The Done command button returns the operator to the Data Display screen. The operator can return at any time. It is not required to end report tracking to leave this screen.
The operator can use the cursor keys or the mouse to access the various input data fields. The only fields that can be entered are the Parcel Volume (M3), Sample Collected, Vessel Name, and Operator Comments. The Parcel Volume and Sample Collected are entered at the end of the material transfer. The Comments are free form and are printed on the Transaction Report. The Operator Comments are optional.
4.3. Starting Transaction Reporting
Once the operator has entered the vessel name and any comments, he can start recording the data by clicking on the Start Report Tracking button. When data recording has started, a typical screen might look as shown below:
The display shows the starting time and date and the recorded volume and sample data at that time. Most likely the volume and sample count would be zero, but it is not required for the MRP.
While transaction reporting is active, the MPR keeps track of the time the composite sampler is enabled and samples are being taken. The MRP also logs any alarms, parameter changes, and other significant events. That logging is done in chronological order (see the transaction report example later in this document).
Also while transaction reporting is active, the MPR will display the current sample volume collected, and the total volume of injected chemicals in the Computed Results area.
4.4. Ending Transaction Reporting
When sampling is completed, the operator can click on the End Report Tracking button to end data logging for the transaction report. After logging is terminated, any change in data, alarms, or other events will NOT be recorded in the transaction report.
When recording is ended, the MRP computes the sample volume collected and the total flow. When the operator enters the parcel volume and the sample collected, the system calculates the sampler accuracy and the flow sampler accuracy. A typical display at the end of reporting is shown below:
4.5. Printing Transaction Reports
The operator can click on the View Report button to print the most recently created report for the selected line. The report is displayed. If the printed report is still desired, click on the Print tab and the report will be printed on an attached printer. A sample report is shown below.
TRANSACTION REPORT FOR LINE 7
Composite Intermed
Date Time Volume(M3) Count Count
Starting 01/20/1999 05:12:12PM 0 0 0
Ending 01/21/1999 03:12:12AM 12000 2000 0
---------- ------- ----- -----
Total 10:00:00 12000 2000 0
Total time with sampling active 10:00:00
Vessel Name: Pacific Queen
OPERATOR COMMENTS
The vessel arrived on time.
Notify ....
OPERATOR INPUT DATA
Estimated Parcel(M3): 12000
Sample Size (ml): 3.0
Receptacle Volume (L): 18.0
Pump 13 Max Delivery Rate (L/hr): 68.0
Pump 6 Max Delivery Rate (L/hr): 84.0
OPERATOR ENTERED MEASUREMENTS
Parcel Volume (M3) = 12120
Sample Collected = 6060
COMPUTED RESULTS
Samp Vol Collected (ml) = 6000
Pump 13 Total Vol (L) = 480
Pump 6 Total Vol (L) = 0
PERFORMANCE DATA
Sampler Accuracy = 1.01
Flow Sensor Accuracy = 1.01
EVENT LOG Composite
Date Time Volume(M3) Rate Sample Count Event
---------- ----------- ---------- ---- ------------ -----
01/20/1999 05:12:12 PM 0 0.0 0 Logging enabled
01/20/1999 05:12:12 PM 0 0.0 0 Sampling Enabled
01/21/1999 03:12:12 AM 12000 0.0 2000 Sampling DISABLED
01/21/1999 03:12:12 AM 12000 0.0 2000 Logging completed
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The Parameter Settings display allows the operator to set monitoring parameters for a line from the computer rather than from the E24-2 panel. This display does not remove the operator’s ability to set run parameters on the E24-2.
The following is a typical Parameter Settings display.
The operator must enter all Sampler parameter settings on this display either through the E-24 Sampler or through this screen. The initial settings for this display are based upon the last run. If a Sampler setting is different from the MRP setting, the MRP setting will be changed to the Sampler setting. The operator can click on a parameter to enter new settings. The parameter is highlighted in yellow while it is being changed. To accept the change and have it applied to the Sampler, press the Enter key. To cancel the change, press the Esc key.
All fields are defined on the display. If the operator leaves the cursor on a field, valid values and definitions are displayed. The Sample Method, Line Fluid, and Pump names are selectable, when the operator clicks on these fields, a list is provided for operator selection.
Entry fields that are displayed in shaded lettering are fields that are not updateable due to the sampler settings. For example, if the line selected has only one pump, the second pump information will be shaded out.