ABB UMC100.3 Manual page 35

C U S T O M A P P L I C AT I O N E D I T O R M A N U A L
—
Function block reference
—
XOR
This function performs bit-by-bit exclusive OR interconnection of the inputs and passes on the result to the output. The max.
number of inputs is 4.
Function Block
Inputs (from top to bottom)
Outputs
Parameters
—
FTrig, RTrig
If a positive edge appears at input CLK for the function RTrig, output Q is set to logic-1 signal. If a negative edge appears at
input CLK for the function FTrig, output Q is set to logic-1 signal. Output Q remains set to logic-1 signal for one cycle.
Function Block
Input
Output
Parameters
—
RS, SR (Flip-Flop)
The flip-flop is used for storing logical binary states. A logical 1 signal at the SET input sets output Q, while a logical 1 signal
at input RESET sets output Q back again. If both inputs are set the RESET input is dominant in the RS function block whereas
the SET input is dominant for the SR function block. The 'Non Volatile SR' flip-flop stores its state also during a power cycle.
It can be used to trigger an action based on an event before the power cycle.
Function Block
Inputs
Output
Parameters
Signal Name
In 1 ... In 4: Input signals
Q: Output
-
Signal Name
CLK: Input
Q: Output
-
Signal Name
SET: Set input
RESET: Reset input
Q: Output
-
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Data Type
Boolean
Boolean
Data Type
Boolean
Boolean
Data Type
Boolean
Boolean
Boolean