Quick start
Simple projects with complete sources can be found here: IEC 60870-5-101 Central station low-level sample.
A PLC application that is to communicate with a substation via the "low-level" interface requires the following resources:
- An instance of the communication function block: FB_IEC870_5_101TProtocol;
- An instance of the TX/RX data buffer: ST_IEC870_5_101TBuffer;
- An instance of the function block for manipulating the TX/RX data buffer: FB_IEC870_5_101TBufferCtrl;