4.2. How the Data Exchange Works
Figure 2. The Communicator internal memory areas
The data exchanged between the Communicator and the PROFINET and the EtherNet/IP resides in the
Communicator internal memory buer.
The Communicator internal memory buer is divided into two areas: Input data and Output data.
Input Data
This Input data area is read by the EtherNet/IP.
The Communicator can handle up to 1448 bytes input data.
Output Data
The Output data area is read/wrien by the PROFINET.
The Communicator can handle up to 1024 bytes output data.
4.3. Data Integrity
A snapshot of the process data buer between the PROFINET/EtherNet/IP Client and the server interface is used
during the operaon of execung all the transacons within one cycle.
When the cycle is completed, the process data available on the server interface is updated and a new snapshot is
created for the next cycle.
How the Data Exchange Works Anybus
®
Communicator
™
- PROFINET IO-Device to EtherNet/IP Adapter
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