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UM353-1
3.2.95 SRF_ - SR Flip-Flop
SRF_ function blocks perform a set dominant flip-flop
function as detailed in the truth table. An unused R input
will be set high (1) and an unused S input will be set low
(0).
SR FLIP-FLOP TRUTH TABLE
S
R
S
1
X
Set
R
0
1
Reset
.
0
0
0
0
S - SET Input
R - RESET Input
X (don't care)
BLOCK DIAGRAM
3.2.96 SRT_ - Square Root
SRT_ function blocks compute the square root of input
signal A. The input has a built-in low limit that will limit
the signal to the square root computation to 0.0.
LO Limit
A
0.0
.
Analog Input
BLOCK DIAGRAM
March 2003
LO
O1
X
1
O1
Output 1
X
0
1
1
.
POWER UP - During a warm start, when PU LAST is set
0
0
to YES, the block will initialize at the input/output states
LO - Last Output
at the instant power down occurred. A cold start will
O1 - Output
initialize the input/output states to 0.
O1
.
Output 1
SR FLIP-FLOP
SRF_
ESN = 000
S
Set
SR FLIP-FLOP
R
Reset
P U
L
A
S
T
Power Up LAST
(S)
I
N
P
U
T
S
..........
INPUT S
loop tag.block tag.output
(H)
I
N
P
U
T
R
..........
INPUT R
loop tag.block tag.output
(H)
E
S N
Exec. Seq. No.
................. 001 to 250
(H)
SQUARE ROOT
ESN = 000
SRT_
SQUARE ROOT
Analog Input
A
P
A
I
N
U
T
INPUT A
...........
(H)
E S N
Exec. Seq. No.
(H)
Function Blocks
O1
Output 1
.................. NO/YES
(YES)
(null)
(null)
O1
Output 1
loop tag.block tag.output
(null)
................ 001 to 250
3-99
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