ABB REG650 Technical Manual page 383

1MRK 502 043-UUS B
Technical Manual
Functionality
The Set-Reset function SRMEMORY is a flip-flop with memory that can set or reset
an output from two inputs respectively. Each SRMEMORY function block has two
outputs, where one is inverted. The memory setting controls if the flip-flop after a
power interruption will return the state it had before or if it will be reset. For a Set-
Reset flip-flop, SET input has higher priority over RESET input.
Table 262: Truth table for the Set-Reset (SRMEMORY) function block
SET RESET OUT
1 0 1
0 1 0
1 1 1
0 0 0
Function block
SRMEMORY
SET OUT
RESET NOUT
IEC09000293-1-en.vsd
IEC09000293 V1 EN
Figure 180: SRMEMORY function block
Signals
Table 263: SRMEMORY Input signals
Name Type
SET BOOLEAN
RESET BOOLEAN
Table 264: SRMEMORY Output signals
Name Type
OUT BOOLEAN
NOUT BOOLEAN
NOUT
0
1
0
1
Default Description
0 Input signal to set
0 Input signal to reset
Description
Output signal
Inverted output signal
Section 13
Logic
377