Mapping Definitions

In receive direction the IEC 61850 client requires 23 User Bits to map

• Quality information (input) 13 bits
• Time quality information (input) 8 bits

The information is mapped to 3 User Bytes. It is possible for the user to define in the WinCC OA config file which of the 4 available User Bytes are used for this mapping. The following config entries allow the user to configure the mapping:

• [iec61850] userByteTimeQuality
• [iec61850] userByteQualityDetail
• [iec61850] userByteQualityMode

The Byte userByteQualityMode is also used for mapping WinCC OA specific information.

In send mode the IEC 61850 client requires one byte to map command modes. For this the commandMode byte is used, which can be set with the config entry [iec61850] userByteCommandMode.