ABB Relion 670 series, Technical Manual

Page: 968 / 1432

15.6.7 Reset-set with memory function block RSMEMORY
GUID-9C93669F-078B-49EA-85B8-C4BB6A434734 v1
GUID-4C804DEA-3C83-4C20-82C6-BAD03BD48242 v4
The Reset-set with memory function block (RSMEMORY) is a flip-flop with memory that can reset
or set an output from two inputs respectively. Each RSMEMORY function 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. For a Reset-Set flip-flop, RESET
input has higher priority over SET input.
Table 627: Truth table for RSMEMORY function block
RESET SET OUT NOUT
0 0 Last
value
Inverted last
value
0 1 1 0
1 0 0 1
1 1 0 1
15.6.7.1 Function block
GUID-50D5A4C0-59BF-44DE-86AC-47640ACD35A7 v3
RSMEMORY
SET
RESET OUT
NOUT
IEC09000294-1-en.vsd
IEC09000294 V1 EN-US
Figure 497: RSMEMORY function block
15.6.7.2 Signals
PID-3811-INPUTSIGNALS v4
Table 628: RSMEMORY Input signals
Name Type Default Description
SET BOOLEAN 0 Input signal to set
RESET BOOLEAN 0 Input signal to reset
PID-3811-OUTPUTSIGNALS v4
Table 629: RSMEMORY Output signals
Name Type Description
OUT BOOLEAN Output signal
NOUT BOOLEAN Inverted output signal
Section 15 1MRK 502 066-UUS B
Logic
962
Technical manual