Siemens 353 User Manual page 81

UM353-1B
3.2.52 NOR_ - NOR Logic
NOR_ function blocks perform a logical NOR on the three
inputs. Any unused input will be set low (0).
A
B
C
NOR TRUTH TABLE
.
A
0
0
0
0
1
1
1
1
BLOCK DIAGRAM
3.2.53 NOT_ - NOT Logic
NOT_ function blocks perform a logical NOT on input
A. Any unused input will be set low (0).
A
. Input A
BLOCK DIAGRAM
April 2012
NOR
B C Output 1
0 0 1
0 1 0
1 0 0
1 1 0
0 0 0
0 1 0
1 0 0
1 1 0
Output 1
NOR
Input A A
Input B B
O1
C
Input C
.
N P U T
I
N P U T
I
N P U T
I
E S N
NOT
Input A
A
O1
.
I N P U T A
E S N
Function Blocks
NOR_
ESN = 000
NOR O1 Output 1
A
INPUT A ..........
(H) loop tag.block tag.output
B
INPUT B .......... loop tag.block tag.output
(H)
C
INPUT C .......... loop tag.block tag.output
(H)
Exec. Seq. No. ................ 001 to 250
(H)
NOT_ ESN = 000
NOT
O1 Output 1
INPUT A ...........
loop tag.block tag.output
(H)
Exec. Seq. No. ................ 001 to 250
(H)
(null)
(null)
(null)
(null)
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