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11.3
Configurable logic blocks
11.3.1
Standard configurable logic blocks
11.3.1.1
Functionality
A number of logic blocks and timers are available for the user to adapt the configuration
to the specific application needs.
•
OR
function block. Each block has 6 inputs and two outputs where one is inverted.
•
INVERTER
function blocks that inverts the input signal.
•
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 Enabled 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
Section 11
1MRK 511 287-UUS A
Logic
372
Technical manual
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