Siemens 353, Руководство пользователя

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UM353-1B Function Blocks
April 2012 3-31
3.2.22 CHR_ - Characterizer
CHR_ function blocks provide 10 segments that can be
used to characterize the X input signal. Individual
segments are configured by entering the Xn, Yn and Xn+1,
Yn+1 points for each segment. All Xn+1 points must be
greater than the associated Xn points. Input X is in
engineering units and the Y points should be in the
engineering units desired for the characterizer output.
BLOCK DIAGRAM
X
OY
Y
0
X
1
X
2
X
3
X
4
X
5
X
6
X
7
X
8
X
9
X
10
X
0
Y
1
Y
10
Y
2
Y
9
Y
3
Y
8
Y
4
Y
7
Y
6
Y
5
Input Coordinates
O
u
tput C
oor
di
nates
Input X
O
utput
Y
CHARACTERIZER
X03131S0
3.2.23 CMP_ - Comparator
CMP_
function blocks compare analog input A with an
external or internal limit setting and provide a high (1)
output when the limit is exceeded.
ACTION - the CMP block can be configured as direct or
reverse action. Direct action will cause the output to go
high when input A is equal to or greater than the limit.
Reverse action will cause the output to go high when
input A is equal to or less than the limit.
BLOCK DIAGRAM
A
O1
O
utput
1
A nalog
Input
DIR ect ACT ing
LIMIT
+
-
E xternal
L
imit
EL
X03132S0
DEAD BAND - the output will return from a high (1) output to a low (0) output when input A is less than the limit -
Dead BAND setting for direct action or greater than the limit + Dead BAND for reverse action.
EXTERNAL LIMIT - When input EL is configured, the LIMIT setting will be ignored and the value of input EL
will be used as the limit value.
Input X
CHARACTERIZER
0
Input Coordinate X0
(S)
............................ Real
(0.0)
OY O utput Y
CHR_ ESN = 000
X
X
CHARACTERIZER
E xec. S eq. N o.
(H)
.......................... 001 to 250
S
E
N
1
Input Coordinate X1
(S)
............................ Real
(10.0)
X
2
Input Coordinate X2
(S)
............................ Real
(20.0)
X
3
Input Coordinate X3
(S)
............................ Real (30.0)
X
4
Input Coordinate X4
(S)
............................ Real
(40.0)
X
5
Input Coordinate X5
(S)
............................ Real
(50.0)
X
6
Input Coordinate X6
(S)
............................ Real
(60.0)
X
7
Input Coordinate X7
(S)
............................ Real
(70.0)
X
8
Input Coordinate X8
(S)
............................ Real (80.0)
X
9
Input Coordinate X9
(S)
............................ Real
(90.0)
X
Input Coordinate X10
(S)
.......................... Real .
(100.0)
X 1 0
0
Output Coordinate
Y0
(S)
......................... Real
(0.0)
Y
1
Output Coordinate Y1
(S)
......................... Real
(10.0)
Y
2
Output Coordinate Y2
(S)
......................... Real (20.0)
Y
3
Output Coordinate Y3
(S)
......................... Real
(30.0)
Y
4
Output Coordinate Y4
(S)
......................... Real
(40.0)
Y
5
Output Coordinate
Y5
(S)
......................... Real
(50.0)
Y
6
Output Coordinate Y6
(S)
......................... Real
(60.0)
Y
7
Output Coordinate Y7
(S)
......................... Real
(70.0)
Y
8
Output Coordinate Y8
(S)
......................... Real
(80.0)
Y
9
Output Coordinate Y9
(S)
......................... Real
(90.0)
Y
0
Output Coordinate
Y10
(S)
....................... Real
(100.0)
Y 1
I N P U T X
INPUT X
(H)
..................
l oop tag.block tag.output (null)
A nalog Input
COMPARATOR
T I
D
R B A
I
Comparator LIMIT
(S)
..................... Real (0.0)
D ead BAND
(S)
.............................. Real (0.5)
DIR ect ACT ing
(S)
.................... NO/YES (YES)
O1
O utput 1
COMPARATOR
CMP_ ESN = 000
I M
A
EL
E
xternal
L
imit
I N P U T A
INPUT A
(H)
.......... loop tag.block tag.output (null
)
E S N
E xec. S eq. N o.
(H)
................ 001 to 250
N D
T C A
L
E T U P N I
INPUT EL
(H)
........
loop tag.block tag.output ( null )
D
L