Hello,
I’m working with a Teltonika TRB140 and trying to use the Data to Server feature to forward data collected by the Modbus TCP Client to multiple MQTT topics on the same broker. (Firmware version: TRB1_R_00.07.11.3)
The problem: When I attempted to create an 11th Data to Server collection, I received an error stating the limit is 10 collections. Is this a hard limit, or is there a way around it? I need to create 20–25 collections in total.
What I’m trying to achieve: Ideally, I’d like a single connection to the MQTT broker and then route the data collected by the Modbus TCP Client to different topics as needed. However, I couldn’t find a way to do this within the interface, so my current workaround was to create separate collections — one per topic — which is what led me to hit the limit.
What I’m looking for:
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Is the 10-collection limit a hard limit, or can it be increased/circumvented?
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Is there a better practice for publishing Modbus data to multiple MQTT topics from a single broker connection?
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Is this use case supported on the TRB140 or Teltonika devices in general?
Any guidance or pointers to relevant documentation would be greatly appreciated. Thanks!
Original post: TRB140 Data to Server hard limitation