Hi i am using energy meter and reading float type value but it is comming as integer in two different byte i want to convert this to float value to make this value usable Thanks [energy meter read value conversion]

if i use from 240 to 257 then how to pic perticular two address in parser because i didnt fint any selection there, Also what is this second dot for in modbus read node as you told i just change dot connection and it is working

I am now able to get the values after parser but it is not showing correct like i am reading frequency which is 49.567 hz but value after parser showing wrong value i have tried with 16bit 32bit uint int etc but not getting correct value i am not understanding how to set parser configurition accordi…

For anyone to help, you need to provide the input data and expected output value(s). You can grab a copy of the input data by using the "copy value" button on the debug output of the modbus data. Also, show us a screen shot of the buffer parser. Lastly, do you have a link to the manual and the mo…

Hi, kindly see the parser setting and value which i want to read from energy meter DPM-C530 Operation Manual (deltronics.ru) [parser] [value that want to read]

Hi .. and how have you configured the Modbus node ? One thing i notice from that table is that the first column .. the hex representation of the address 142 hex in decimal is 322 and 143 hex is 323 dec So as a test can you start reading the two registers needed for the Hz from 322 and Quantity 2 …

I have successful in getting frequency data by following setting [success in getting frequency data]

There should be no need to byte swap the data if you use float BE.

Hi i have displayed this frequency data to dashboard but it is not looking much fancy and showing frequency with its label too i want wo make good visual any one can suggest how to do that or how to correct value upto 4 decimal places Thanks [dashboard adjustement required] [guage setting] [tex…

Instead of using msg.payload you should be using msg.payload.item1 To format the number on the dashboard use angular pipes How to limit temp display on dashboard to 2 decimals - #3 by Steve-Mcl

Thanks, is ther any batter dashboard or other application which i can use with node red to make its look batter

You can write your own web pages if you wish using whatever web technology you are capable of using. But that is a whole other question. If you are finished with this question then please mark the solution. If you want to ask more about dashboards, please start a new thread.

How to convert integer value coming from modbus to float value

General

Steve-Mcl 29 September 2022 06:04 10

Instead of using msg.payload you should be using msg.payload.item1
To format the number on the dashboard use angular pipes How to limit temp display on dashboard to 2 decimals - #3 by Steve-Mcl

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How to convert integer value coming from modbus to float value

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