Specifications
Chapter 3 - AsconControlLib
107
3-3-10 S2_MV
FB Prototype
S2_MV
Input parameters
Output parameters
Description
This module is an Output station for an Heat/Cool loop, providing the functionalities
the operator needs to interact with the loop. The loop is controlled by two PIDs,
connected downstream to this module; each one is dedicated to one channel.
By a set of digital inputs the S2_HCMV_VAL function block provides auto/manual/
track/aux operating mode as listed above, ordered according to their priority level.
Trk
DTRK
AutoMan
DAM
Aux
DAUX
Depending on these digital inputs, the functionality of the module changes as
follows:
• If none of these digital signals are active, the module does not alter the
control output signals, that are led, unchanged, directly from the input
MVC
and
MVH
to the output
OUTH
and
OUTC
. The
DBND
parameter defines
how the Cool and the Heat channel interact each other. When it is positive,
this parameter defines the dead band width, centered around the output
value 0. It means that for each output value included in the deadband both
the
OUTC
and the
OUTH
output are 0. When it is negative, the opposite
Input Type Description
MVH REAL
Analog input, corresponding to the control output (also
named manipulated output) of the Heat P.I.D. module.
Value in [0…100.0]
MVC REAL
Analog input, corresponding to the control output (also
named manipulated output) of the Cool P.I.D. module.
Value in [0 … 100.0]
DBND REAL Deadband, with range from [-10.0...+10.0]
DTRK BOOL Digital tracking Command
TRK REAL Tracking signal [-100...+100.0]
DAM BOOL Digital AutoMan Command
AM_VAL REAL Manual Value [0...100.0]
DAUX BOOL Digital Auxiliary Command
AUX REAL Auxiliary Signal [0…100.0]
Output Type Description
OUTH REAL Control Output for HEAT [0...100.0]
OUTC REAL Control Output for COOL [0...100.0]
OUTHC REAL Control Output for visualization [-100.0...+100.0]
DBMP BOOL BUMPLESS command
OVERLAP BOOL Active if both OUTH and OUTC are active
MVH
MVC
DBND
DTRK
TRK
DAM
AM_VAL
DAUX
AUX
REAL
REAL
REAL
BOOL
REAL
BOOL
BOOL
BOOL
REAL
¡
¡
¡
¡
¡
¡
¡
¡
¡
REAL
REAL
REAL
BOOL
BOOL
OUTH
OUTC
OUTHC
DBMP
OVERLAP
¡
¡
¡
¡
¡