ABB RET650 Technical Manual page 384

Section 13
Logic
378
• PULSETIMER function block can be used, for example, for pulse extensions or
limiting of operation of outputs, settable pulse time.
• GATE function block is used for whether or not a signal should be able to pass
from the input to the output.
• XOR function block. Each block has two outputs where one is inverted.
• LOOPDELAY function block used to delay the output signal one execution
cycle.
• TIMERSET function has pick-up and drop-out delayed outputs related to the
input signal. The timer has a settable time delay and must be On for the input
signal to activate the output with the appropriate time delay.
• AND function block. Each block has four inputs and two outputs where one is
inverted
• SRMEMORY 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's output should reset or return to the state it
was, after a power interruption. The SET input has priority if both SET and
RESET inputs are operated simultaneously.
• RSMEMORY 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's output should reset or return to the state it
was, after a power interruption. The RESET input has priority if both SET and
RESET are operated simultaneously.
Configurable logic Q/T
A number of logic blocks and timers, with the capability to propagate timestamp and
quality of the input signals, are available. The function blocks assist the user to adapt
the IEDs configuration to the specific application needs.
• ORQT OR function block that also propagates timestamp and quality of input
signals. Each block has six inputs and two outputs where one is inverted.
• INVERTERQT function block that inverts the input signal and propagates
timestamp and quality of input signal.
• PULSETIMERQT Pulse timer function block can be used, for example, for
pulse extensions or limiting of operation of outputs. The function also propagates
timestamp and quality of input signal.
1MRK 504 135-UEN A
Technical manual