ABB REC 561, User Manual

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Configurable logic
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of the inputs in the block. Each XOR circuit has two outputs, XOnn-OUT
and XOnn-NOUT (inverted). The output signal (OUT) is 1 if the input
signals are different and 0 if they are equal.
Fig. 8 Block diagram of the XOR function
2.7 Set-Reset (SR)
The configuration logic Set-Reset (SR) (Fig. 9) has two inputs, designated
SRnn-SET and SRnn-RESET, where nn runs from 01 to 05 and presents
the serial number of the block. Each SR circuit has two outputs, SRnn-
OUT and SRnn-NOUT (inverted). The output (OUT) is set to 1 if the
input (SET) is set to 1, if the input (RESET) is 0. If the reset input is set to
1, the output is unconditionally reset to 0.
Fig. 9 Block diagram of the Set-Reset function
2.8 MOVE
The MOVE function blocks (may also be called copy-blocks) are used for
synchronization of boolean signals sent between logics with slow execu-
tion time and logics with fast execution time.
There are two types of MOVE function blocks - MOF located First in the
slow logic and MOL located Last in the slow logic. The MOF function
blocks are used for signals coming into the slow logic and the MOL func-
tion blocks are used for signals going out from the slow logic.
The control terminal contains 3 MOF function blocks of 16 signals each,
and 3 MOL function blocks of 16 signals each. This means that a maxi-
mum of 48 signals into and 48 signals out from the slow logic can be syn-
chronized. The MOF and MOL function blocks are only a temporary
storage for the signals and do not change any value between input and
output.
=1
INPUT1
INPUT2
XOnn
1
OUT
NOUT
(X80161-8)
SET
RESET
1
OUT
NOUT
&
≥1
SRnn
(X80161-9)