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John Gioia

BACnet - BACnet slave and modbus config file

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Hi all, Let me know if this is the right forum for this posting.

I have been asked by the building automation team to have my V700 PLC communicate with their BAS.

I have a BACnet Gateway installed and they have informed me that I need to configure my BACnet as a slave.

They have provided me with a MAC of 33, Instance value of 9129 and Baud rate of 38,400 - this is all that they provided me with.

I assume that they just want to find my BACNET device and READ my 5 points of data.

Looks like I cannot use the builtin TOOL to configure the Gateway - I did try, but all they saw on their network was my instance name and MAC, they of course did not see my Instance of 9129 as the configurator configs MASTER as the default.

My question is, does someone have some solid samples of the CSV file that has to be created to address my situation ?

Thanks John

 

Thanks in advance.

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Hi John,

Were you able to configure your GW-BAC1?

I am in same situation as you. I was wandering if you were able to find any solution?

 

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Well Alex, I went there and hunted around a bit, but the only real bit of relevance is the main statement: ' This tool will configure the BACnet getaway as BACnet master and modbus Slave. If you wish to have the getaway act as BACnet slave and modbus master the configuration file should be change manualy before downloading it to the device. "  (I have copied and pasted, so the spelling errors are actual!  I need a holiday so wouldn't mind having a getaway with a slave at present!)

I couldn't actually find anything on the page that actually says how to do this.  Even if it is a simple change in the file, it needs to be fully explained.  I am a bit incredulous that setting up the gateway via Vision etc defaults into it only being a master, with no easy "tickbox" to change this setting.  To me this is a large error that needs fixing.

cheers, Aus

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4 hours ago, Ausman said:

This tool will configure the BACnet getaway as BACnet master

Unfortunately, this is very true and represents only half of what the tool needs to do.  The higher probability is the Unitronics device will be nothing more than a slave node in someone else's Grand Building Control System.

I have one of these belonging to a customer sitting on the floor of my BearCave (like a ManCave, only darker, smoke-filled, and prone to being a location for taking a nap) with the exact same issue - we determined after installation that we are a BACnet slave and I'm going to have to crawl through the documentation Unitronics sent me to configure it manually.  

I'll post what I come up with.

Joe T.

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