XL15C Configuration

Configuring Excel 15C Poll Point

The Excel 15C controller utilizes poll points as a means to retrieve data from other network devices.Data retrieved by a poll point is available for linking to Excel 15C objects such as math functions, control loops, logic loops, and start/stop loops.

The Excel 15C polls each point every two seconds. If the response is not received within ten seconds the poll is changed to once every 30 seconds. When the response is received the poll rate returns to once every 2 seconds.

The Excel 15 controller supports a maximum of 20 poll points.

Procedure

1. Drag a PollPoint object from the palette and drop it on the wiresheet.
2. Right click and invoke the "Config" option for configuration.
3. The configuration dialog displays all the available controllers in the network.
4. Select any controller which can provide the input to the Excel15C's algorithm.
5. Select the network variable and the appropriate element.
6. Click on OK to save the configuration.
7. Create a link between the PollPoint object and an internal object (for example, flex).
8. The Link dialog comes up displaying the slots available on the source and destination object.
9. Select an appropriate source slot/link  (for ex. Analog link) on the poll point and select an appropriate destination slot/link (for ex. Sensor Link) on the destination object.
10. Click on OK to save the links.
11. Since these points are polled by the Excel15C controller, this does not require a bind operation to be performed.

Note:

Any change in the configuration needs to be downloaded to the controller. Until then, the objects would be marked as "Stale".This is an indication that these changes need to be downloaded to the controller.Invoke "Download" to download the configuration changes to the controller.

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