Shading central facade function (ShdCenFcd11)

Overview

The application function "Shading central facade function 11, for automatic" (ShdCenFcd11) processes the façade data required for the automatic shading function.

CenFcdShd11	Central facade shading for automatic 11
RShdCoo11	Room shading coordination 11
ShdCenFcd11	Shading central facade function 11, for automatic
ShdEngyEffcy11	Shading energy efficiency 11, thermal protection
ShdGlrPrt11	Shading anti-glare protection 11
BlsCmd	Blinds command

Function

This AF receives the sun tracking position and the weather data for a façade from the central AF CenFcdShd11 and pre-processes it for further use by energy efficiency (AF ShdEngEffcy11) and/or glare protection (AF ShdGlrPrt11 or ShdAnnGlrPrt11).

This AF requires the existence of a façade-specific instance of the central AF CenFcdShd11 to work properly.

Configuration

None (configured in CenFcdShd11).

Interface

Interface	Description	Type	Ref.	Owned by
SolRdnCnd	Solar radiation condition 1:None 2:Low 3:Medium 4:High	MCalcVal	●	-
GlrCnd	Glare condition 1:None 2:Hold direct 3:High direct 4:Hold indirect 5:High indirect 6:Dark	MCalcVal	●	-
BlsOp	Blinds operation 1:Move up 2:Move down 3:Step up 4:Step down 5:Go to height 6:Go to angle 7:Go to height & angle 8:Go to position 9:No operation	MCalcVal	●	-
BlsPosNr	Blinds position number 1:P1: Visual protection 2:P2: Anti-glare, sun position low 3:P3: Anti-glare, sun position high 4:P4: Open	MCalcVal	●	-
BlsHgt	Blinds height	ACalcVal	●	-
SlatAgl	Slat angle	ACalcVal	●	-
ShdCenFcd	Shading central facade function	GrpMbr	●	-

Engineering and commissioning

No configuration is required in this AF.
The sun tracking function is configured in the central façade AF CenFcdShd11.
The AF is required if either energy efficiency (AF ShdEngEffcy) or glare protection (AF ShdGlrPrt) are present.

Troubleshooting
Verify the chart function in CFC: All received values can be viewed on the chart outputs.

Technical hints
The sun tracking position is a structure of 4 variables

Blinds operation
Blinds predefined position number
Blinds height
Slats angle

Synchronization and verification is required since these variables are distributed independently.

A set of variables is valid, if

All variables required for the specific blinds operation are received and
The time between the variables received is less than 10 sec and
The blinds operation is {Goto height, Goto angle, Goto height and angle, Goto predefined position}

A valid set of variables is forwarded to the chart outputs, and the variables remain unchanged until the next valid set of variables is received.