• OR function block. The OR function is used to form general combinatory
expressions with boolean variables. The OR function block has up to six inputs
and two outputs. One of the outputs is inverted.
• PULSETIMER function block can be used, for example, for pulse extensions
or limiting of operation of outputs, settable pulse time.
• 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, after a power interruption, the flip-flop resets or
returns to the state it had before the power interruption. RESET input has
priority.
• 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, after a power interruption, the flip-flop resets or
returns to the state it had before the power interruption. The SET input has
priority.
• TIMERSET function has pick-up and drop-out delayed outputs related to the
input signal. The timer has a settable time delay.
• XOR is used to generate combinatory expressions with boolean variables.
XOR has two inputs and two outputs. One of the outputs is inverted. The
output signal OUT is 1 if the input signals are different and 0 if they are the
same.
14.7.1 AND function block AND
IP11013-1 v2
M11453-3 v4
The AND function is used to form general combinatory expressions with boolean
variables. The AND function block has up to four inputs and two outputs. One of
the outputs is inverted.
14.7.1.1 Function block
M11452-3 v2
AND
INPUT1
INPUT2
INPUT3
INPUT4
OUT
NOUT
IEC14000071-1-en.vsd
IEC14000071 V1 EN-US
Figure 230: AND function block
Section 14 1MRK 505 394-UEN A
Logic
460 Line differential protection RED650 2.2 IEC
Technical manual
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