Error ERR_OUT_OF_RANGE

General
1

Hello,
I have this error in syslog and I can't find how to fix it.
Can you help me?

*Jan  6 14:44:21 iot2050[298]: 6 Jan 14:44:21 - [red] Uncaught Exception:*
*Jan  6 14:44:21 iot2050[298]: 6 Jan 14:44:21 - RangeError [ERR_OUT_OF_RANGE]: The value of "offset" is out of range. It must be >= 0 and <= 7. Received 9*
*Jan  6 14:44:21 iot2050[298]:     at boundsError (internal/buffer.js:82:9)*
*Jan  6 14:44:21 iot2050[298]:     at Buffer.readUInt16BE (internal/buffer.js:328:5)*
*Jan  6 14:44:21 iot2050[298]:     at _readFC4 (/root/.node-red/node_modules/modbus-serial/index.js:118:24)*
*Jan  6 14:44:21 iot2050[298]:     at ModbusRTU._onReceive (/root/.node-red/node_modules/modbus-serial/index.js:427:13)*
*Jan  6 14:44:21 iot2050[298]:     at TcpPort.emit (events.js:314:20)*
*Jan  6 14:44:21 iot2050[298]:     at Socket.<anonymous> (/root/.node-red/node_modules/modbus-serial/ports/tcpport.js:92:20)*
*Jan  6 14:44:21 iot2050[298]:     at Socket.emit (events.js:314:20)*
*Jan  6 14:44:21 iot2050[298]:     at addChunk (_stream_readable.js:297:12)*
*Jan  6 14:44:21 iot2050[298]:     at readableAddChunk (_stream_readable.js:272:9)*
*Jan  6 14:44:21 iot2050d[298]:     at Socket.Readable.push (_stream_readable.js:213:10)*
*Jan  6 14:44:21 iot2050 systemd[1]: node-red.service: Main process exited, code=exited, status=1/FAILURE*
*Jan  6 14:44:21 iot2050 systemd[1]: node-red.service: Failed with result 'exit-code'.*
*Jan  6 14:44:21 iot2050 systemd[1]: node-red.service: Consumed 19min 53.911s CPU time.*

How can I find out where in the program this error is coming from? at boundsError (internal/buffer.js:82:9)

Thank you.

2

You are using Modbus and somewhere in your flow it looks like you are receiving an input over modbus-serial that is outside of the allowed range. So I'd start by looking at your modbus flows.

3

Hello TotallyInformation
Thank you for your answer.
Yes, we think the problem is about the modbus tcp flows. We don't find the solution yet. When we know, I will post it.

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4

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