Beijer Modbus Netbiter

Guy Farley

• November 28, 2023 21:54

Hiya

Taken over a project and getting some weirdnes. 

The previous engineer as setup netbiter, looking at a column in beijer screen. Tags with reference of 000xx work just fine. i.e. 57... and in netbiter its 57. 

However, tags with 400xx do not work. They are displayed in the Beijer HMI just fine. But the netbiter can't get them. However, the engineer has ofset them by 1. So he's inserted them as for example

Sea Temp on Beijer is 40006 Float INT16- on netbiter its 7 - Holding 16bit 

Any advice would be welcome.

 

Thanks

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  Kyle Reynolds

  • November 28, 2023 22:13

  Hi Guy, 

  In Modbus, often the first digits are assumed because of the function code. For example, function code 3, read holding registers, always start with 4xxxx. So, the 4 may be assumed by the function code used. If that's the case, entering the address as 57 may work, but entering the address as 40057 won't.

  The offset is due to the fact that register addresses start at 1 and memory addresses start at 0. Hopefully this helps to explain the weirdness a little. 

  How are you entering the addresses into the Netbiter? Are you using a template? Can you share a screenshot?

  Best Regards, 

  Kyle

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  Guy Farley

  • November 28, 2023 22:21

  Hiya. Thank you for the prompt reply! 

  I've attached pictures of Beijer config. Most of the alarm sides work, but the live data does not. Sea temp, wind speed etc. Also the Boiler On/Off and Flame status has stopped working. Engine heaters and feedback however work. 

  All working when on the HMI 

  

   

  

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  Siobhan Chapman

  • January 09, 2024 11:40

  Hi Guy

  I have replied via our support ticketing system as there are details of your account I wanted to discuss in a private conversation.

  Thanks

   

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