FB_BA_RolBld

This template is used to control a blind actuator without slat adjustment.

The resulting diagram from the zone stSunBldCmd is routed via a drive delay FB_BA_SunBldPosDly.

This delays all automatic telegrams and is intended to ensure that, in the event of global control of blinds (e.g. fire alarm), not all blinds move at the same time and thus the breakaway starting current of the motors remains limited.

The current blind position is made available in BACnet via an analog object FB_BA_AV_Op.

The template has a feedback structure stFeedback at the output.

If the programmed blind actuator is an individual actuator or the reference actuator of a group, this feedback telegram must be linked to the controlling room (zone) user function in order to obtain information about the state of the actuator.

The initialization of the template takes place within the method FB_Init.

Syntax

FUNCTION_BLOCK FB_BA_RolBld EXTENDS FB_BA_View
VAR_INPUT
  bEn                    : BOOL;
  stSunBldCmd            : ST_BA_SunBld;
END_VAR
VAR_OUTPUT
  bReferencing           : BOOL;
  nReferenceTimer        : UDINT;
  bErr                   : BOOL;
  fActualPosition        : REAL;
  eActualSunblindPrio    : BYTE;
  stFeedback             : ST_BA_SunblindActuatorFeedback;
END_VAR
VAR_INPUT CONSTANT PERSISTENT
  nSwiOverTi             : UDINT;
  nPositioningDelay      : UDINT;
  nTiUp                  : UDINT;
  nTiDwn                 : UDINT;
END_VAR
VAR_INPUT CONSTANT
  ActualPosition         : FB_BA_AV_Op;
END_VAR
VAR
  PositioningDelay       : FB_BA_SunBldPosDly;
  RolBldActr             : FB_BA_RolBldActr;
  bCmdUp      AT %Q*     : BOOL;
  bCmdDown    AT %Q*     : BOOL;
END_VAR