SettgBeginUpdate (FUN)

FUNCTION SettgBeginUpdate : RTS_IEC_RESULT

Function to block writing settings to database file until SettgEndUpdate is called! But the settings cache is updated.

NOTE:

- Funcion can be called nested, so only at the last call of SettgEndUpdate, the database is written!

- Always call SettgBeginUpdate() and SettgEndUpdate() symmetric!!!

InOut:

Scope	Name	Type	Comment
Return	SettgBeginUpdate	RTS_IEC_RESULT	Runtime system error code (see CmpErrors.library).