FB_BACnet_RemoteLoop_EX

Application

The function block FB_BACnet_RemoteLoop_EX can be used for reading access to a BACnet object of type Loop.

VAR_OUPUT

bReady            : BOOL;
fControlledValue  : REAL;
fPresentValue     : REAL;
bOverridden       : BOOL;
bOutOfService     : BOOL;
bFault            : BOOL;
bInAlarm          : BOOL;
bOpenLoop         : BOOL;  (*siehe Beschreibung*)
bOtherFault       : BOOL;  (*siehe Beschreibung*)
eEventState       : E_BACNETEVENTSTATE;  (*siehe Beschreibung*)
tObjectID         : T_BACnet_ObjectIdentifier:=16#FFFFFFFF;  (*siehe Beschreibung*)
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 function block instance was not linked correctly in the TwinCAT System Manager.

fControlledValue: feedback of the current process parameter (X, actual value).

fPresentValue: feedback of the current control output (X, control value). Attention: Present_Value and Controlled_Variable_Value can easily lead to confusion (see also BACnet specification DIN EN ISO 16484-5 for BACnet object Loop and properties Present_Value, Controlled_Variable_Value and Controlled_Variable_Reference).

fPropBand: feedback of the current control output in percent (-100%...+100%) in relation to the minimum and maximum control output (properties Minimum_Output and Maximum_Output).

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

bOpenLoop, bCommFailure, bOtherFault: see BACnet specification DIN EN ISO 16484-5 for BACnet object Loop and property Reliability.

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

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.