during operation (submodule [...] : UDINT ; exec : [...] := TRUE appears :
GetEnrollmentSummary : IEC [...] if the operation worked. Input p
BACnetAddListElement : [...] if the operation worked. Input p
DeviceCommControl : IEC [...] if the operation worked. Input p
RemoveListElement : IEC [...] whether the operation
BACnetSubscribeCOV : [...] the operation worked. Input p
SubscribeCOVProperty : IEC [...] for the reply. NOTE : If f [...] whether the operation
_ReturnValues : InOut: Name [...] _FAILED 16#1 The operation
BACnetReadProperty : [...] if the operation worked. Input p
BACnetReadRange : IEC [...] whether the operation