The source text is transmitted via TCP/IP telegram or UDP datagram over the computer network to ibaPDA. You can set the configuration in the I/O Manager under the node Text interface. In the TCP Text or UDP Text module's Analog tab, the source text with the STRING data type and the text signals derived from the source text with the STRING data type or a different data type are configured. For numerical data types, the conversion is carried out automatically.
A TCP Text or UDP Text module must be configured under the Text interface node for each source text or telegram.
Please note the limitation of the receive buffer when configuring the text size.
|
Transmission protocol/module type |
Receive buffer size |
|---|---|
|
TCP Text module |
20,000 Byte |
|
UDP Text module |
64 kB |
Thereby, the quantity of data to be processed per message is limited too.
One character needs 1 Byte or 2 Byte, depending on the charcater set or encoding.