Hi I am working on a custom node and have been able to get this to work correctly in a function node on a flow. I have been able to make multiple copies of the function and change variables etc and all works fine as you would expect. I have now worked on the html, js and package files for the node…

I have tried to recreate the error but now I am able to install the module with some hard coded variables and it works, but only on the last node placed on the flow. When a second node is added the first node msg.payload is empty, so on a flow with multiple of the same node only the last one works. …

A key difference between your Function code and your custom Node code is that the Function code creates a new instance of the backstack client object for every message. Your Node code creates a single backstack client object for each node and reuses it for each message a node receives. I cannot com…

Thanks for the help, this makes sense so I will carry on in this direction:grinning:

@Chris you'll need to explain what MS/TP is... And how that relates to this topic.

@Chris no, the node red bacnet module only supports bacnet IP. The Node Red bacnet node is based on Bacstack which does not support Bacnet MS/TP

Hi, based on existing bacstack whether can add BACnet MS/TP(Master Slave/Token Passing) function which is very popular in BAS. I hope the node-red-contrib-bacnet which seems like node-red-contrib-modbus both support TCP AND SERIAL(RTU) interface. Maybe how to implement the 5ms timers for token is t…

Can you please share the read and write function you built!! Thanks

@mtoko Can you share the write Function that you got to work and any steps you had to do before running the function. IE i get an error stating bacnet1 is not a function.

Hi You can see the workaround (example flow and settings.js) on this link [image] Issue: Bacnet Write opened by mtoko on 2018-02-19 closed by biancode on 2018-06-01 Hi Thanks for the great work. The read is working fine but cannot get write to work correctly. Please see…

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Custom Node code

General

Topic		Replies	Views
Pros and Cons about using "custom" Functions vs the basic set of nodes General	24	5403	19 September 2018
Do you have a sample of BACnet and a working node that you are using? General bacnet	3	158	13 February 2025
Function nodes - How to reuse JS functions in my functions? General function-node	33	512	24 January 2026
Node red - write a function and call it from a function General function-node	13	1270	29 December 2022
BACnet write property General	7	2735	29 May 2021

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