5.3. Overview Control components

In the table below an overview is given of all control components available in wanda.

Numerical output signal generators	Description
SENSOR	Measured signal from hydraulic system
CON	Generates constant output value
TAB	Generates output value by interpolation in a time table mono=directional
TAB2	Generates output value by interpolation in a time table bi=directional
FUN	Generates output value by evaluating a time function
WAVE	Generates a periodic, time dependent signal.
TIME	Outputs the model time at every time=step
LtoN	Transfer logical to numeric
MSP	Multi stage pattern

Conditional actions	Description
COND	Condition (comparison)
COND2	Condition (comparison) with additional enable input port
2COND	Two Conditions
LCS	Level Control Switch
LCS2	Level Control Switch with additional enable input port
SELECT	Select one or other input channel depending status third input channel

Continuous controllers	Description
PID	Proportional, Integrating, Differentiating controller (Continuous)
PID_N	Proportional, Integrating, Differentiating controller (Continuous), normalized
PIDSS	Proportional, Integrating, controller with start= stop
PIDSS_N	Proportional, Integrating, controller with start= stop; normalized

Logical operators	Description
AND	AND (all)
OR	OR (at least one)
XOR	Exclusive OR (either the one or the other)
NOT	Negation

Numerical operators	Description
SUM	Addition
MUL	Multiplication
SUB	Subtraction
DIV	Division
SFUN	Transformation of an input signal according to a standard function
STAB	Transformation of an input signal according to a table
MIN	The smallest of the input signals
MAX	The largest of the input signals
MOVAVG	Moving average of the input signal
ABS	Absolute value of input signal
SIGN	Sign of input signal
BIAS	Addition by a constant value
GAIN	Multiplication by a constant value
RAMP	Maximum change per second
TRUNC	Truncation of input signal
INTGRT	Integrator
MOD	Modulo

Time delay components (travel time of signals)	Description
DELAY	Delay for numerical (measured) signals
LDELAY	Delay for logical signals

Logical signal generators	Description
LCON	Generates constant logical output value
LTAB	Generates logical output value by interpolation in a time table

File operations	Description
RDFILE	Read input from file
WRFILE	Write output to file