BAC_AV_03

Functional description

The template forms a REAL process value from several, prioritised set values (priority matrix, template inputs).
The process value is logged by a TrendLog object.

Interface

Block diagram

VAR_INPUT

bEnSfty    : BOOL;
rValSfty   : REAL;
bEnDst     : BOOL;
rValDst    : REAL;
bEnLoc     : BOOL;
rValLoc    : REAL;
bEnPgm     : BOOL;
rValPgm    : REAL;

bEnSfty: Safety priority enable

rValSfty: Analog value safety priority

bEnDst: Enable fault priority.

rValDst: Analog value fault priority.

bEnLoc: Enable priority manual intervention

rValLoc: Analog value priority manual intervention

bEnPgm: Enable program priority

rValPgm: Analog value program priority

VAR_OUTPUT

rPrVal    : REAL;

rPrVal: current value of the Analog Value object.

VAR CONSTANT

PLT_NUM    : BYTE := 1;

PLT_NUM: all alarms and events of all plant components within a controller are included in a global alarm and event list. The assignment of events and alarms to a plant is defined by the assignment of a PLT_NUM plant number.
The recording and processing of an alarm from an aggregate or a device takes place within the templates by means of the alarm function block FB_BA_Alarm.
The evaluation of the alarms of a plant, e.g. for the generation of a collective message or for plant shutdown in case of relevant faults, takes place within the template BAC_PltAlm_01 by means of the function block FB_BA_AlarmPlt.
The evaluation of different plant events within the templates of a plant, takes place within the template BAC_PltComnMsg_01 by means of the function block FB_BA_ComnMsg.

Important! The assignment and evaluation of the alarms and events of a plant can only be done correctly if all templates of a plant have the same plant number!

The plant number can be assigned in the Project Builder in the parameter menu for the templates or via a column in the Excel import.

Program description

Version history