Now go poll without fear. Your bytes will all arrive.
Troubleshooting Modbus Poll: "Insufficient Bytes Received" Error Fixed modbus poll bytes missing error fixed
The error occurs when the Modbus master (your PC or PLC) receives a response that is shorter than expected. In other words: Now go poll without fear
option if using a USB-to-RS485 adapter that does not handle this automatically. Diagnostic Steps How to deal with Modbus communication problem? - XWiki modbus poll bytes missing error fixed
A water treatment plant engineer uses Modbus Poll to read flow meter data over a 500-meter RS485 cable. The error appears randomly every 30 seconds.