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

UM353-1B

3.2.91 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

3.2.92 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 1
1
0 0
1
0 1
1 0
0
1
1 0
1 1 0
1
1 1
April 2012
Output 1
O1
X03135S0
O1
X03136S0
0
1
1
1
1
1
1
0
TRANSFER SWITCH
TSW_
Input A A
B TRANSFER SWITCH
Input B
SC
Switch Command
I N P U T A
INPUT A ..........
(H)
I B
N P U T
..........
INPUT B
(H)
I N P U T S C
INPUT SC
(H)
E S N
Exec. Seq. No.
XOR
XOR_ ESN = 000
Input A A
XOR
Input B B
Input C C
I N P U T 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.
Function Blocks
ESN = 000
O1
Output 1
loop tag.block tag.output (null)
loop tag.block tag.output (null)
........
loop tag.block tag.output (null)
................. 001 to 250
(H)
O1 Output 1
loop tag.block tag.output (null)
loop tag.block tag.output (null)
loop tag.block tag.output (null)
................. 001 to 250
(H)
3-91