Power SCADA IEC61850 RCB Communication Tag Addresssing Format

Hello,

I am working on IEC61850 Communication Protocol in these days. Even though tag addressing format of MMS object is given in Power SCADA Driver help file, tag addressing format of RCB onbject isn't given. After i looked through in internet for RCB tag addressing format, i found a format in a different brand doc as "Rly1/LLN0$BR$brcb1:Rly1/LLN0$ST$Mod$stVal". Although ı used this type of addressing in Power SCADA, it didn't work and I can not read data.