ABB DCS550 - Logical Function

121
AP
3ADW000379R0501 DCS550 Manual e e
AND
Logical function
Illustration
Operation
OUT is true if all connected inputs are true, otherwise OUT is false. Truth table:
IN1
IN2
IN3
OUT (binary)
OUT (value on display)
0
0
0
false (all bits 0)
0
0
0
1
false (all bits 0)
0
0
1
0
false (all bits 0)
0
0
1
1
false (all bits 0)
0
1
0
0
false (all bits 0)
0
1
0
1
false (all bits 0)
0
1
1
0
false (all bits 0)
0
1
1
1
true (all bits 1)
-1
Connections
IN1, IN2 and IN3: boolean
OUT: 16 bit integer (packed boolean)
Bitwise
Logical function
Illustration
Operation
The block compares the bits of three 16 bit word inputs and forms the output bits as follows:
OUT = (IN1
OR IN2) AND IN3.
Example:
Single bit:
IN1
IN2
IN3
OUT
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
0
0
0
1
0
0
1
1
1
1
0
1
1
1
1
1
1
Example:
Whole words:
Connections
IN1, IN2 and IN3: 16 bit integer (packed boolean)
OUT: 16 bit integer (packed boolean)