ABB Relion 670 Series RES670, Technical Manual

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15.7.8.3 Settings
Table 331: RSMEMORYQT Group settings (basic)
Name Values (Range) Unit Step Default Description
Memory Disabled
Enabled
- - Enabled Operating mode of the memory function
15.7.8.4 Technical data
Table 332: Number of RSMEMORYQT instances
Logic block Quantity with cycle time
3 ms 8 ms 100 ms
RSMEMORYQT - 10 30
15.7.9 Set/Reset function block SRMEMORYQT
The Set-reset function (SRMEMORYQT) is a flip-flop with memory that can set or reset
an output from two inputs respectively. Each SRMEMORYQT 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. The
SET
input has priority.
SRMEMORYQT can propagate the quality, the value and the time stamps of the signals
via IEC61850.
Table 333: Truth table for SRMEMORYQT function block
SET RESET OUT NOUT
0 0 Last
value
Inverted
last value
0 1 0 1
1 0 1 0
1 1 1 0
If Memory parameter is Enabled , the output result is stored in semi-retained memory.
Section 15
1MRK 511 365-UUS A
Logic
452 Phasor measurement unit RES670 2.1 ANSI
Technical manual