Set-Reset Memory Function Block Srmemory - ABB Relion Technical Manual

Section 13
Logic
13.3.1.10
484
Signals
Table 317: AND Input signals
Name Type
INPUT1 BOOLEAN
INPUT2 BOOLEAN
INPUT3 BOOLEAN
INPUT4 BOOLEAN
Table 318: AND Output signals
Name Type
OUT BOOLEAN
NOUT BOOLEAN
Settings
The function does not have any parameters available in Local HMI or Protection and
Control IED Manager (PCM600).

Set-reset memory function block SRMEMORY

Identification
Function description
Set-reset memory function block
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 319: Truth table for the Set-Reset (SRMEMORY) function block
SET RESET OUT
1 0 1
0 1 0
1 1 1
0 0 0
Default Description
1 Input signal 1
1 Input signal 2
1 Input signal 3
1 Input signal 4
Description
Output signal
Inverted output signal
IEC 61850 IEC 60617
identification identification
SRMEMORY
NOUT
0
1
0
1
1MRK 502 048-UUS A
ANSI/IEEE C37.2
device number
- -
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