Title: 32 Pumper modbuss teknisk data.pdf.pdf
a) CIM 500 is fitted incorrectly in theGrundfos product.b) CIM 500 is defective.a) No internal communication betweenCIM 500 and the Grundfos product.a) CIM 500 does not support the Grundfosproduct connected.a) Fault in the CIM 500 Modbus TCPconfiguration.a) Error in the firmware download.a) Memory fault.Possible causea) CIU 500 is defective.a) No internal communication betweenCIU 500 and the Grundfos product.a) CIM 500 does not support the Grundfosproduct connected.a) Fault in the CIM 500 Modbus TCPconfiguration.a) Error in the firmware download.a) Memory fault.RemedyCheck that CIM 500 is fitted and connected correctly.Replace CIM 500.Check that CIM 500 is fitted correctly in the Grundfos product.Contact the nearest Grundfos company.Check that the rotary switch SW1 is set to 1. Check that Modbus TCP IP address configuration is correct. See section 3. Modbus TCP configuration on page 53.