A Modbus poll timeout error occurs when a Modbus master device sends a request to a slave device, but the slave device fails to respond within the specified timeout period. The master device waits for a certain amount of time for the slave to respond, and if the response is not received within that timeframe, it assumes the slave is not responding and generates a timeout error.
An ounce of prevention is worth a pound of debugging. modbus poll timeout error
: Long daisy-chain runs require exactly two A Modbus poll timeout error occurs when a