Title: 32 Pumper modbuss teknisk data.pdf.pdf
Ensure that the slave address is configured correctly, and that the correct slave address is used in the Modbus master poll. See section 5.3 Modbus address selection for slave address selection.Ensure that the transmission speed and stop bit/parity settings are configured correctly in both master and slave.Ensure that each end of the Modbus trunk cable is terminated, if necessary. See section 5.4 Termination resistor for line termination of the Grundfos slave.Ensure that each end of the Modbus trunk cable is terminated, if necessary. See section 5.4 Termination resistor for line termination of the Grundfos slave.Ensure that the bus topology for a Modbus network is correct.Ensure that the bus topology for a Modbus network is correct.b) The slave may be in listen-only mode.Either send a restart communications diagnostics command, or restart the E-pump manually.c)