MPI is Multi-Point Interface, suitable for PLC 200/300/400, operation panel TP / OP and host computer MPI / PROFIBUS communication card. The communication rate of MPI network is the network only supports 12Mbit / s communication rate. The MPI network can connect up to 32 nodes, the maximum communication distance is 50m, but the length can be extended by repeaters.
PPI protocol is a communication protocol specially developed for S7-200. The communication ports (Port0, Port1) of the S7-200 CPU support the PPI communication protocol, and some communication modules of the S7-200 also support the PPI protocol. Micro / WIN communicates with CPU through PPI protocol. PPI is a master-slave protocol. The master station and slave stations are in a token network. In a PPI network, the number of master stations communicating with a slave station is not limited, but the number of master stations in a network cannot exceed 32. The master station can read and write data from the slave station, and can also read and write data from the master station. In other words, when the S7-200 acts as a PPI master station, it can still act as a slave station to respond to data requests from other master stations.
MPI is communication between master stations; PPI can be communication between multiple master stations and slave stations.
MPI is Multi-Point Interface, suitable for PLC 200/300/400, operation panel TP / OP and host computer MPI / PROFIBUS communication card. The communication rate of MPI network is the network only supports 12Mbit / s communication rate. The MPI network can connect up to 32 nodes, the maximum communication distance is 50m, but the length can be extended by repeaters.
PPI protocol is a communication protocol specially developed for S7-200. The communication ports (Port0, Port1) of the S7-200 CPU support the PPI communication protocol, and some communication modules of the S7-200 also support the PPI protocol. Micro / WIN communicates with CPU through PPI protocol. PPI is a master-slave protocol. The master station and slave stations are in a token network. In a PPI network, the number of master stations communicating with a slave station is not limited, but the number of master stations in a network cannot exceed 32. The master station can read and write data from the slave station, and can also read and write data from the master station. In other words, when the S7-200 acts as a PPI master station, it can still act as a slave station to respond to data requests from other master stations.
MPI is communication between master stations; PPI can be communication between multiple master stations and slave stations.
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