Title: 32 Pumper modbuss teknisk data.pdf.pdf
Make sure that the cable between the Modbus TCP master and the Modbus slave is connected correctly. See section 7.1 Connecting the Ethernet cable.Ensure that the slave IP address is configured correctly, and that the correct slave IP address is used in the Modbus master poll. See section 7.3 Setting the IP addresses.Ensure that the slave IP address is configured correctly, and that the correct slave IP address is used in the Modbus master poll. See section 7.3 Setting the IP addresses.See section 8. Modbus function code overview. Modbus function code overview for supported function codes. Note that reading and writing coils are not supported, so only register functions and diagnostics are valid.Avoid reading or writing invalid data addresses. Ensure that a block of registers starting at address X is addressed as X - 1 in Modbus telegrams, according to the Modbus standard.