ABB Relion 670 series - Set-reset with memory function block SRMEMORY

Table 513: LOOPDELAY Input signals
Name Type Default Description
INPUT BOOLEAN 0 Input signal
Table 514: LOOPDELAY Output signals
Name Type Description
OUT BOOLEAN Output signal, signal is delayed one execution cycle
14.3.9 Set-reset with memory function block SRMEMORY
The Set-reset with memory function block (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.
Table 515: Truth table for SRMEMORY 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
SRMEMORY
SET
RESET
OUT
NOUT
IEC04000408_2_en.vsd
IEC04000408 V2 EN
Figure 443: SRMEMORY function block
Table 516: SRMEMORY Input signals
Name
Type Default Description
SET BOOLEAN 0 Input signal to set
RESET BOOLEAN 0 Input signal to reset
1MRK505222-UUS C Section 14
Logic
877
Technical reference manual