Message Optimization

The MBTCP Communication Driver uses Multi read and write commands to optimize PLC read/write messages. The MBTCP Communication Driver optimizes the reading and writing of data by grouping points that are in consecutive registers. The Block I/O sizes parameters control the buffer size. The default is to maximize the buffer size.

Note: The number of bytes for the query and response buffers must not exceed the Modbus maximum buffer size of 256 bytes.