ValueByIndex BeginUpdate ,

from IStorage TransactionBegin

IIecVarAccess4 ¶ VarAccAppendVariable (Method) VarAccBegin

Server Begin

of the beginning substrings

beginning

from the beginning of the current

at the beginning of a program [...] completely EVENT_ONLINE_SERVICES_BEGIN

from the very beginning. It is intended

You should call TraceMgrPacketReadBegin