The communication technology research of reciprocating compressor monitoring system based on MPI

The MPI communication between IPC and S7-300 series PLC of the monitoring system of large-scale 6M-style reciprocating compressor has been achieved by using the PRODAVE S7 DLL on the environment of Delphi. The engineering practice shows that this communica- tion method transmits data fast and correctly and has good referenced value for the condition monitoring and fault diagnosis system of large-scale process equipment.