
Configuring Ports
Chapter 5 57
in the buffer. The Digi CM unit transfers data when the buffer is full using the
TCP/IP protocol. However, if it is not full, the Digi CM unit will also transfer data
dependent on the timeout value selected.
Specialty Use of Port -When Data is Processed in Chunks
Some applications are written to process only chunks of data rather than
continuous streams of data.
The Digi CM unit supports ’chunking’ holding back data from the serial device
to the application on the network until it detects a delimiter - at which point it
sends the data to the application.
To configure a port for this mode:
1. Open a web connection to the Digi CM unit.
2. Click Serial Port > Configuration.
3. Select All ports to configure.
4. Click Host Mode configuration.
5. Under Protocol, select RawTCP.
6) Select Serial port parameters
7) Configure the delimiter and supporting settings. Descriptions of the options
follow.
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