• INVALIDQT function which sets quality invalid of outputs according to a"valid" input. Inputs are copied to outputs. If input VALID is 0, or if its qualityinvalid bit is set, all outputs invalid quality bit will be set to invalid. The timestamp of an output will be set to the latest time stamp of INPUT and VALIDinputs.• INVERTERQT function block that inverts the input signal and propagates thetime stamp and the quality of the input signal.• ORQT OR function block that also propagates the time stamp and the quality ofthe input signals. Each block has six inputs and two outputs where one is inverted.• PULSETIMERQT Pulse timer function block can be used, for example, forpulse extensions or limiting of operation of outputs. The function also propagatesthe time stamp and the quality of the input signal.• RSMEMORYQT function block is a flip-flop that can reset or set an output fromtwo inputs respectively. Each block has two outputs where one is inverted. Thememory setting controls if the block after a power interruption should return tothe state before the interruption, or be reset. The function also propagates the timestamp and the quality of the input signal.• SRMEMORYQT function block is a flip-flop that can set or reset an output fromtwo inputs respectively. Each block has two outputs where one is inverted. Thememory setting controls if the block after a power interruption should return tothe state before the interruption, or be reset. The function also propagates the timestamp and the quality of the input signal.• TIMERSETQT function has pick-up and drop-out delayed outputs related to theinput signal. The timer has a settable time delay. The function also propagates thetime stamp and the quality of the input signal.• XORQT XOR function block. The function also propagates the time stamp andthe quality of the input signals. Each block has two outputs where one is inverted.15.7.1 ANDQT function blockThe ANDQT function is used to form general combinatory expressions with booleanvariables. The ANDQT function block has four inputs and two outputs.1MRK502052-UEN B Section 15Logic821Technical manual
