Andqt Function Block - ABB Relion 650 Series Technical Manual

Section 9
Logic
9.8.1
312
common part and the indication part of inputs signal are copied to the
corresponding quality output.
• 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 quality
invalid bit is set, all outputs invalid quality bit will be set to invalid. The time
stamp of an output will be set to the latest time stamp of INPUT and VALID
inputs.
• INVERTERQT function block that inverts the input signal and propagates the
time stamp and the quality of the input signal.
• ORQT OR function block that also propagates the time stamp and the quality
of the input signals. Each block has six inputs and two outputs where one is
inverted.
• PULSETIMERQT Pulse timer function block can be used, for example, for
pulse extensions or limiting of operation of outputs. The function also
propagates the time stamp and the quality of the input signal.
• RSMEMORYQT function block is a flip-flop that can reset or set an output
from two inputs respectively. Each block has two outputs where one is
inverted. The memory setting controls if the block after a power interruption
should return to the state before the interruption, or be reset. The function also
propagates the time stamp and the quality of the input signal.
• SRMEMORYQT function block is a flip-flop that can set or reset an output
from two inputs respectively. Each block has two outputs where one is
inverted. The memory setting controls if the block after a power interruption
should return to the state before the interruption, or be reset. The function also
propagates the time stamp and the quality of the input signal.
• TIMERSETQT function has pick-up and drop-out delayed outputs related to
the input signal. The timer has a settable time delay. The function also
propagates the time stamp and the quality of the input signal.
• XORQT XOR function block. The function also propagates the time stamp
and the quality of the input signals. Each block has two outputs where one is
inverted.

ANDQT function block

The ANDQT function is used to form general combinatory expressions with
boolean variables. The ANDQT function block has four inputs and two outputs.
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