Hello, I am trying to convert an array to send the item as a number to an API. I get the data from a Modbus connector and receive it this way: [image] I have tried several functions to get the data point (509) and send it as a number to the API var arrData = msg.payload; msg.payload = String(ar…

Leave the function node attached & add a 2nd debug node. Connect that to the same output that the function node is connected to on the modbus node (i.e. 2 wires from same output pin, 1 already going to function, other going to the newly added debug node) - what do you see. I suspect you are using …

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Transform array in Function

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Steve-Mcl 3 October 2021 20:56 4

In which case the data is not as described.

Use debug nodes to check what is going into the function.

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Transform array in Function

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