Introduction

A PLC application which should communicate with a or sub station via the transport interface needs the following resources:

• Instance of communication function block: FB_IEC870_5_102TProtocol;
• Instance of TX/RX data buffer: ST_IEC870_5_102TBuffer;
• Instance of function block to manipulate the TX/RX data buffer: FB_IEC870_5_102TBufferCtrl;