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Connections Are Not Working

Connections Are Not Working

You can create connections with both the CMS Connections widget and using MQTT. MQTT created connections do not show up in the Connections widget. If you make changes using the Connections widget but do not see the updates, then click the Refresh button (image-20250213-164538.png) to see the updates.

Only LON devices using DMM – if you are not able to create a peer-to-peer between edge devices or an internal device and an edge device, then consider the following:

  1. Not all datapoints on the LON device can have a peer-to-peer connection; this applies to both input and output datapoints.

  2. Look at the device's XIF to determine if the datapoint can have a peer-to-peer connection. Each datapoint has a poll flag, which when set, means that the datapoint can only be polled. If a datapoint is poll only, then see the datapoint section for details.

Workarounds

  1. Internal devices – change the XIF you are using such that the datapoint poll flag in the XIF file is set to a 0 and then re-import in the XIF file. You may need to change the program ID in the XIF file if you were using this same XIF file for real devices.

  2. Edge devices – use point-to-point connections (which may slow down sending updates to sources datapoints) or compile new code for the devices with the poll flags set to 0.