BAC_H_HtgCirSp_01

Application

The template is an atmospheric temperature controlled heating circuit control. It is comprised of a heating curve, a heating limit switch and the operating modes Frost / Night / Day / Auto with the associated setpoint.

Interface

Block diagram

VAR_INPUT

bSched  : BOOL;

bSched: Timer input for switching between day and night mode

VAR_OUTPUT

bDmd      : BOOL;
rSpDmd    : REAL;  

bDmd: Output of the heating operation request, depending on the operating mode OpModMan.

rSpDmd: Output of the setpoint for the heating circuit

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