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Tsw_ - Transfer Switch; Xor_ - Exclusive Or Logic - Siemens Moore 353 User Manual

Process automation controller
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Function Blocks

3.2.101 TSW_ - Transfer Switch

TSW_ function blocks select one of two analog input
signals as the output signal. Input A becomes the output
when input SC is low (0) and input B will be the output
when input SC goes high (1).
Unconfigured inputs will default to SC=low(0), A=0.0,
B=100.0.
Input A
A
Input B
B
Switch Command
SC
BLOCK DIAGRAM

3.2.102 XOR_ - Exclusive OR Logic

XOR_ function blocks perform a logical exclusive OR
function on all three inputs. An unused input will cause the
block to function as a two input XOR. The XOR output
will be low (0) when all configured inputs are low (0) or
when all configured inputs are high (1).
A
B
XOR
C
XOR TRUTH TABLE
A
B
Output 1
C
0
0
0
0
0
0
1
1
1
1
0
0
1
0
1
1
1
0
1
0
1
1
1
0
1
1
0
1
1
1
1
0
3-102
Output 1
O1
X03135S0
O1
X03136S0
TRANSFER SWITCH
TSW_
ESN = 000
A
Input A
Input B
B
TRANSFER SWITCH
SC
Switch Command
I
N
P
U
T
A
INPUT A
..........
(H)
I
B
N
P
U
T
INPUT B
..........
(H)
I
C
N
P
U
T
S
INPUT SC
........
(H)
E S N
Exec. Seq. No.
(H)
XOR
XOR_
ESN = 000
Input A
A
XOR
Input B
B
Input C
C
N
U
T
I
P
A
INPUT A
..........
(H)
I
N
P
U
T
B
..........
INPUT B
(H)
I
N
P
U
T
C
INPUT C
..........
(H)
E S N
Exec. Seq. No.
................. 001 to 250
(H)
UM353-1
O1
Output 1
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................. 001 to 250
O1
Output 1
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(null)
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March 2003

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