Access by IndexGroup and Offset

It makes most sense to access PLC variables by symbol name in order to detect changes in the symbolism (e.g. due to an OnlineChange). Small controllers (e.g. BC/BX) that have no symbolism can be addressed directly via IndexGroup and Offset. Via the configured ADS runtime you can add a new symbol that fetches the values by IndexGroup and Offset (hex values are converted to the corresponding decimal values).