AnalogInputPointObserver (FB)

FUNCTION_BLOCK FINAL AnalogInputPointObserver EXTENDS PointObserver IMPLEMENTS IAnalogInputPointObserver

DNP3 Master datapoint observer for a datapoint of DNP3 object group 30 “analog inputs”.

InOut:

Scope

Name

Type

Initial

Comment

Inherited from

Input

itfMaster

IMaster

Connect to a Master.

PointObserver

xEnable

BOOL

Enable the PointObserver.

PointObserver

pointNumber

UINT

Datapoint number.

PointObserver

Output

xError

BOOL

An error occured.

PointObserver

eErrorID

Error

The specific error.

PointObserver

modified

BOOL

Data received since last call.

PointObserver

sequenceNumber

UDINT

Sequence number of received data.

PointObserver

Input

valueType

AnyNumberType

AnyNumberType.TYPE_REAL

The value type must be chosen.

valuePointer

POINTER TO BYTE

0

The POINTER TO value representation of output variable value can be used if needed.

enableClip

BOOL

FALSE

Allow to clip the received value to numerical range determined by valueType. If set to FALSE, an error is signaled, if value received from Outstation is out of range which can be represented by output variable value.

Output

value

AnyNumber

Value received from Outstation. Type must be chosen by setting input valueType. The AnyNumber POINTER TO value representation can be used if needed, to do so configure input valuePointer accordingly.

flags

USINT
Flags received from Outstation. Flag values are OR’d
combinations of the following:
DNPDEFS_DBAS_FLAG_ON_LINE - the point has been read

successfully

DNPDEFS_DBAS_FLAG_RESTART - the field device that originated the

data object has been restarted. This device may be the deviced reporting this data object.

DNPDEFS_DBAS_FLAG_COMM_LOST - the device reporting this data object

has lost communication with the originator of the data object

DNPDEFS_DBAS_FLAG_REMOTE_FORCED - the state of the binary object

has been forced to its current state at the originating device

DNPDEFS_DBAS_FLAG_LOCAL_FORCED - the state of the binary object

has been forced to its current state at the device reporting this data object

DNPDEFS_DBAS_FLAG_OVER_RANGE - the digitized signal or calculation

is greater than the type specified in TMWTYPES_ANALOG_VALUE. If the SCL determines that the value returned cannot fit in the type specified by the object variation read it will set this OVER_RANGE bit.

DNPDEFS_DBAS_FLAG_REFERENCE_CHK - the reference signal used to

digitize the signal is not stable, and the resulting digitized value may not be correct.

hasTimeStamp

BOOL

Update received from Outstation has a valid time stamp.

timeStamp

LDATE_AND_TIME

Time stamp reported - valid if hasTimeStamp = TRUE, invalid otherwise.

Properties:

Enabled, inherited from PointObserver

IsModified, inherited from PointObserver

Key, inherited from PointObserver

Typ, inherited from PointObserver

Methods: