ABB REG670 - Set-Reset with Memory Function Block SRMEMORY

15.6.8 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,
after a power interruption, the flip-flop resets or returns to the state it had before the
power interruption. The input SET has priority.
Table 533: 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
15.6.8.1 Function block
SRMEMORY
SET
RESET
OUT
NOUT
IEC04000408_2_en.vsd
IEC04000408 V2 EN
Figure 383: SRMEMORY function block
15.6.8.2 Signals
Table 534: SRMEMORY Input signals
Name
Type Default Description
SET BOOLEAN 0 Input signal to set
RESET BOOLEAN 0 Input signal to reset
Table 535: SRMEMORY Output signals
Name
Type Description
OUT BOOLEAN Output signal
NOUT BOOLEAN Inverted output signal
15.6.8.3 Settings
Table 536: SRMEMORY Group settings (basic)
Name
Values (Range) Unit Step Default Description
Memory Off
On
- - On Operating mode of the memory function
1MRK502052-UEN B Section 15
Logic
817
Technical manual