Rs Function Block - ABB RELION Series Technical Manual

Section 3
Basic functions
3.16.1.13
132
Signals
Table 118: SR Input signals
Name Type
S BOOLEAN
R BOOLEAN
Table 119: SR Output signals
Name
Q
NOTQ

RS function block

Function block
GUID-3876F400-A7D1-45DA-B20F-DFA5AE863073 V1 EN
Figure 77: Function block
Functionality
The RS flip-flop output Q can be set or reset from the S or R inputs. R input has a higher
priority over the S input. Output NOTQ is the negation of output Q.
The statuses of outputs Q and NOTQ are not retained in the nonvolatile
memory.
Table 120: Truth table for RS flip-flop
S
0
0
1
1
1) Keep state/no change
Default
0=False
0=False
Type
BOOLEAN
BOOLEAN
R
0
1
0
1
1MRS758755 A
Description
Set Q output when set
Resets Q output when
set
Description
Q status
NOTQ status
Q
1)
0
0
1
0
REC615 and RER615
Technical Manual