ABB DCS550 Series, Manual

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3ADW000379R0501 DCS550 Manual e e
Operation Set/reset block. IN1 (S) sets OUT. IN2 (R) or IN3 (R) reset OUT. If IN1, IN2 and IN3 are false,
the current value remains at OUT. The SR is reset dominant. Truth table:
IN1 IN2 IN3 OUT (binary) OUT (value on display)
0 0 0 no change no change
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 true (all bits 1) -1
1 0 1 false (all bits 0) 0
1 1 0 false (all bits 0) 0
1 1 1 false (all bits 0) 0
Connections IN1, IN2 and IN3: boolean
OUT:
16 bit integer (15 bits + sign)
Switch-B
Logical function
Illustration
Operation OUT is equal to IN2 if IN1 is true. OUT is equal to IN3 if IN1 is false.
IN1 OUT
0 = IN3
1 = IN2
Connections IN1: boolean
IN2 and IN3: boolean
OUT: 16 bit integer (packed boolean)
Switch-I
Arithmetical function
Illustration
Operation OUT is equal to IN2 if IN1 is true. OUT is equal to IN3 if IN1 is false.
IN1 OUT
0 = IN3
1 = IN2
Connections IN1: boolean
IN2 and IN3: 16 bit integer (15 bits + sign)
OUT: 16 bit integer (15 bits + sign)