ABB DCS550 Series, Manual

Page: 121 / 316

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)