ABB ACSM1 Firmware Manual page 259

SR
(10033)
Illustration
Execution time
Operation
Inputs
Outputs
TLA1 1 msec
S1
R
0.38 µs
The output (Q1) is 1 if the set input (S1) is 1. The output will retain the previous output
state if the set input (S1) and the reset input (R) are 0. The output is 0 if the set input is
0 and the reset input is 1.
Truth table:
S1 R Q1
previous
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Q1 is the previous cycle output value.
previous
Set input (S1): Boolean
Reset input (R): Boolean
Output (Q1): Boolean
SR
48
(1)
Q1(48)
Q1
Q1
0
1
0
0
1
1
1
1
259
Standard function blocks