Data Exchange

General

The data sent to and received from the serial interface are transferred in the cyclic data area.

The sequence register, the control bytes within the MTU, and the serial data itself are all part of the handshake protocol between the module and the superordinate system.

In the following sections, the steps required to operate the interface are explained.

What Is in This Section?

This section contains the following topics:

oSynchronization of Readiness to Send and Receive

oSending and Receiving

oTransmit Data: Preparing the Cyclic Data, Maximizing Control and Monitoring

oTransmit Data: Preparing Cyclic Data, Maximizing Data Throughput, Frame Length ≤ Maximum Segment Size (63 Bytes)

oReceive Data: Read Cyclic Data, Maximizing Control, and Monitoring

oReceive Data: Read Cyclic Data, Maximizing Data Throughput