Hello @omer.alumur
There are two different data transfers on the POWERLINK , one is cyclic (PDO) and the other is acyclic (SDO).
You can read SDO variables with the EplSDORead function with AsEPL library. The selected part of the objects described in Register description is transferred in the cyclic POWERLINK frame. These cyclic objects (process data objects, PDOs) are listed in the module’s I/O mapping and represented in AS as follows:
However, there is no register description for the module 8BVI0330HWS0.000-1 that you mentioned in the datasheet of the module.
Please check the following address:
8BVI Datasheet
I see in the picture that you sent that the Error register table is taken from the ACOPOSmulti User’s Manual. These PDO’s for ACOPOSmulti system are only found in modules with code 8B0C. Here, you may have referenced a wrong page. If there is a module starting with 8B0C in your system, you can read variables such as Overvoltage, Undervoltage etc. directly from I/O mapping of the module.
Best Regards,
Hakan