Set-Reset Memory Function Block Srmemory - ABB RELION 630 Series Technical Manual

Section 3
Basic functions
3.32.1.9
150
Table 137: AND20 Output signals
Name Type
OUT BOOLEAN
NOUT BOOLEAN
Settings
The function does not have any parameters available in LHMI or PCM600.

Set-reset memory function block SRMEMORY

Function block
SRMEMORY
SET
RESET NOUT
IEC09000293-1-en.vsd
IEC09000293 V1 EN
Figure 83: 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 returns the state it had before or if it is reset. For a Set-Reset flip-
flop, SET input has higher priority over RESET input.
Table 138: Truth table for the Set-Reset (SRMEMORY) function block
SET RESET OUT
1 0 1
0 1 0
1 1 1
0 0 0
Signals
Table 139: SRMEMORY Input signals
Name Type
SET BOOLEAN
RESET BOOLEAN
Description
Output
Inverted output
OUT
NOUT
0
1
0
1
Default Description
0 Input signal to set
0 Input signal to reset
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