FB_BACnet_RemoteAnalogValue_EX

FB_BACnet_RemoteAnalogValue_EX 1:

Application

The function block FB_BACnet_RemoteAnalogValue_EX can be used for reading and write access to a BACnet object of type AnalogValue.

VAR_INPUT

Notice: Variables shown in red are not included in the basic version of the function block, but in the _WR version.

bEnablePV  : BOOL;
bNullPV    : BOOL;
fPV        : REAL;

bEnablePV: TRUE = write enable of the property value; FALSE = do not change the entry in the BACnet object (bNullPV and fPV have no effect).

bNullPV: TRUE = delete the property entry (NULL); instead of the value of fPV; FALSE = write value of fPV as property value.

fPV: Value to be written to the property Present_Value, if bEnablePV = TRUE and bNullPV = FALSE. The process data are written when there is a change.

VAR_OUPUT

bReady         : BOOL;
fPresentValue  : REAL;
bOverridden    : BOOL;
bOutOfService  : BOOL;
bFault         : BOOL;
bInAlarm       : BOOL;
bOverRange     : BOOL;
bUnderRange    : BOOL;
bOtherFault    : BOOL;
eEventState    : E_BACNETEVENTSTATE;
tObjectID      : T_BACnet_ObjectIdentifier:=16#FFFFFFFF;
bError         : BOOL;
nErrorId       : UINT;

bReady: Notification of general readiness. If this output is set, the other status outputs are valid (PresentValue, Overridden ...). If the output is FALSE, the corresponding function block FB_BACnet_Device does not report "Operational", or the block instance was not linked correctly in the TwinCAT System Manager.

fPresentValue: Current value of the BACnet object (see also BACnet specification DIN EN ISO 16484-5 for BACnet object AnalogOutput and property Present_Value).

bOverridden, bOutOfService, bFault, bInAlarm: See BACnet specification DIN EN ISO 16484-5 for BACnet object AnalogOutput and property Status_Flags.

bOverRange, bUnderRange, bOtherFault: See BACnet specification DIN EN ISO 16484-5 for BACnet object AnalogOutput and property Reliability.

eEventState: See BACnet specification DIN EN ISO 16484-5 for BACnet object AnalogOutput and property Event_State.

bAckedTrans_ToOffNormal, bAckedTrans_ToFault, bAckedTrans_ToNormal: Flags of property Acked_Transitions (see BACnet specification DIN EN ISO 16484-5 for BACnet object AnalogOutput and property Acked_Transitions).

tObjectID: Object ID of the BACnet object (object type and object instance).

bError: An error is pending.

nErrorId: see global constants BACnet_Globals.

VAR_IN_OUT

RemoteDevice       : FB_BACnet_RemoteDevice;

RemoteDevice: Specification of the instance of the corresponding remote BACnet server block (client). A BACnet adapter can be used for several BACnet clients. See FB_BACnet_Adapter and FB_BACnet_RemoteDevice for further information.

See also