Function

By function it is possible to develop from logic inputs and outputs other signals, which can be used for control system algorithm control (operation of other logic inputs) or to map them to physical outputs.

On inputs of functional packet it is possible to connect all logic inputs and outputs, on outputs of packet can be connected custom logic outputs, additional signals (for interconnection of packets) and custom malfunctions. If output from one function packet only enters into other (it will not be used for physical output), connection for interconnection of packets can use additional signals (BinAuxN, AnlAuxN). For use of these additional values are appropriate packets also projected as connected.

By function "TraceRout" it is possible in real time to display states of outputs of single packets (by delay for example also remaining time) and it is so possible to easy trace or to adjust functions.

Overview of available function packets

Logical „AND“ function		Logical conjunction of input signals Y = 1 if A=1 and currently B=1 Y = 0 if A=0 or B=0
Logical „OR“ function		Logical disjunction of input signals Y = 1 if A=1 or B=1 Y = 0 if A=0 and currently B=0
Logical „XOR“ function		Logical exclusive disjunction of input signals Y = 1 if A=B Y = 0 if A<>B
Flip-flop circuit „D“		Flip – flop circuit type D Q = D if CK=1 Q = Qt-1 if CK=0 During reset of control system is state KO zero
Flip-flop circuit „RS“		Flip – flop circuit type RS Q = 1 if S=1 Q = 0 if R=1 Q = Qt-1 if S=0 a R=0 During reset of control system is state KO zero
Signal Delay		Slow down input edge of logical signal by defined time. After reset of control system Y=A regardless of set delay.
Analog Comparator		Analog comparator Y = 1 if A>=B Y = 0 if A<B
Analog Addition		Addition of analog signals OUT = IN1 + IN2
Analog Subtraction		Subtraction of analog signals OUT = IN1 - IN2
Analog Multiplication		Multiplication of analog signals OUT = IN1 * IN2
Analog Division		Division of analog signals OUT = IN1 / IN2
Analog Switch		Analog switch OUT = IN if S=1 OUT = 0 if S=0
Analog Memory		Analog memory (equivalent to flip – flop circuit type „D“ in analog form) OUT = IN if S=1 OUT = OUT t-1 if S=0 During reset of control system is output zero.
Analog Integrator		Analog integrator, on output of function is input signal time - integrated. During reset of control system is output of integrator zero.
Hysteresis		Hysteresis OUT = IN+Hys if OUT>IN+Hys OUT = IN-Hys if OUT<IN-Hys Where Hys is selectable amount of hysteresis.
Minor of two		Minimum from both inputs OUT = IN1 if IN1<=IN2 OUT = IN2 if IN1>IN2
Major of two		Maximum from both inputs OUT = IN1 if IN1>=IN2 OUT = IN2 if IN1<IN2
PWM to D.C. convertor		Convert input binary signal to analog value 0÷100% corresponding to signal inverter on input. Period of input signal must be lower than 4s, accuracy of measurement in unit range ms.
D.C. to PWM convertor		Convert input analog value 0÷100% to output binary signal with appropriate inverter. Period of output binary signal is 2s.

	All logical signals (both inputs and outputs of packets) can be configured as direct or inverted (from AND can be thus easy created NAND etc.).

	For one of inputs of analog packets it is possible to connect signal with constant level (comparison of analog value with constant, addition of constant) etc. Constant can be directly defined value or any from parameters with the same unit and scale.

Examples of use of functional packets

	Connection of two comparators and control system of flip – flop circuit can be developed by hysteresis of comparator. Output is activated by increase of input temperature (in this case) over 80°C and deactivated by decrease of temperature bellow 60°C
	In this case output will be activated only in defined „window“ of input temperature, thus only in case, that temperature is higher than approx. 40°C and lower than approx. 80°C. Hysteresis packet ensures, that output is mot oscillating when input temperature gets around decision levels.
	Delay with direct input and output delays input edge of output signal against input signal. It is possible to use it to filter out shorter impulses than delay or to interfere reaction of input signal.
	Delay with inverted both input and output delays decreasing edge of output signal against input signal (mono - stable flip – flop circuit). It can be used for extension of reaction of input signal, for example.
	Engaging of non - inverted and inverted delay can control delay of both increasing and decreasing edge. It can be used to define delay of any protection and its duration after subside of cause, for example.