Send / Receive – General Information

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In a Send / Receive communication, the data is transmitted without application headers, i.e. as raw data.

Any station that supports the Send / Receive direct interface can be used as the communication partner.

The Send / Receive protocol works both with TCP/IP and H1.

Receiving and sending data

•	It is generally possible to both send and receive over a single connection.

•	Besides the address of the Send / Receive PLC (IP address or MAC address), you need to specify a port or TSAP.

•	Using the echoaktiv function, it is possible to perform active jobs via AS511 over the otherwise passive programming port. For further Information, see the echoaktiv section.

NOTE:

For Send / Receive communication, a specific Send/Receive Item Syntax is used.