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Configure the LCD display
The following procedure configures the host controller LCD display to show the status of the communication between the host
controller and the LevelMaster. Displaying the status provides a quick visual identification of communication success or failure.
The display allows the viewing of the LevelMaster Protocol "R" and Receive "¬" functions as the flow computer polls the
LevelMaster for information.
IMPORTANT NOTE: If the enclosure is still removed and the electronics board is visible, LED D19 and D18 should
be lit to indicate receiving and sending data from and to the host controller. Configuring the LCD to provide visual
indication from the host controller is more convenient since access to the top of the tank to see the board is not
required.
To set up the display and annunciator:
1.
Make sure the LevelMaster and the controller are connected.
a.
Reconnect the communication and power connectors on the LevelMaster board.
b.
Reconnect the COM port connector on the controller if it was removed.
2.
On the PCCU32 navigation tree, click Display.
3.
Click on the Annunciators tab.
4.
Determine which unassigned annunciator can be used to reflect the status of the communication port that has been
dedicated to the LevelMaster.
5.
On the navigation tree, click the node next to LevelMaster Device ID.
6.
To view each tank, select the tank.
7.
Click Re-read on the bottom of the screen.
8.
Record the register number in the left-hand shaded column for each item that needs a display built. Do this for each tank
that a display is being built for.
9.
Click the node next to Display.
10. Click the Display Group to edit, or create a New Display Group. To create a New Display Group, see the PCCU32 help
files.
11. On the Setup screen, the Group Description may be changed along with the Number of Displays.
12. Click Send if any changes were made to the Group Description or the Number of Displays. This will download the new
application information to the flow computer. This requires the unit to reconnect automatically. A message screen will
appear. Select OK.
13. Return to the Display Group.
14. Click on the first Spare. This will open the Item Setup screen for this item.
15. Modify the first display item by entering the Name of Display Item and entering the Register number for the value to be
added.
16. Change the Display Interval to a minimum of five seconds. This may be changed to any length from 0 to 255 seconds.
Entering 0 turns the display off. To modify any other values, see the PCCU32 help files for more information.
17. Click Send. The front display should start scrolling after going to the Entry screen.
18. Observe the annunciators to ensure communication success is indicated. If communication is successful, proceed to verifty
that valid measurement readings are being received by the controller. See section 6.5, Verify basic configuration.
Verify basic configuration
Perform this procedure to verify that the host controller is communicating with the LevelMaster. If communication is taking place,
level measurement(s) should be displayed.
To verify if measurements are being displayed:
1.
Make sure the LevelMaster and the controller are connected.
LevelMaster 7100 User manual 2105835 Rev AA | 55
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Troubleshooting
