FB_BACnet_Accumulator_R6

Application

The function block FB_BACnet_Accumulator_R6 can be used for reading and write access to a BACnet object of type Accumulator. Write access in this version (_R6) is the same as in the previous library version (Revision 6): The value of nPV is transferred directly into the property Present_Value.

VAR_INPUT

nPV        : UDINT;

nPV: Value that is written directly to the Property Present_Value.

VAR_OUPUT

bReady         : BOOL;
nPresentValue  : UDINT;
bOverridden    : BOOL;
bOutOfService  : BOOL;
bFault         : BOOL;
bInAlarm       : BOOL;
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.

nPresentValue: Current value of the BACnet object (see also BACnet specification DIN EN ISO 16484-5 for BACnet object Accumulator and property Present_value).

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

bError: An error is pending.

nErrorId: see global constants (BACnet_Globals).

VAR_IN_OUT

Device         : FB_BACnet_Device;

Device: Specification of the instance of the local corresponding BACnet server block. For each BACnet adapter one BACnet server is possible. See FB_BACnet_Adapter and FB_BACnet_Device for further information.