Mask-Set; Max - ABB ACS800 Application Manual

22
Operation
Connections

MASK-SET

Type
Illustration
Operation
Connections

MAX

Type
Illustration
Operation
Connections
Function blocks
The output is the filtered value of input I1. Input I2 is the filtering time.
-t/I2
O = I1 · (1 - e )
Note: The internal calculation uses 48 bits accuracy to avoid offset errors.
Input I1: 24 bit integer value (23 bits + sign)
Input I2: 24 bit integer value (23 bits + sign). One corresponds to 1 ms.
Output (O): 24 bit integer (23 bits + sign)
Logical function
MASK SET
I1
I2
O
I3
The block function sets or resets the bits defined in I2 in I1.
Input I1: Word input
Input I2: Set word input
Input I3: Set/reset I2 in I1.
Example with SET
I1 I2 I3 O
0 0 True 0
1 0 True 1
1 1 True 1
0 1 True 1
Input I1: 24 bit integer value (packed boolean)
Input I2: 24 bit integer value (packed boolean)
Input I3: Boolean
Output (O): 24 bit integer value (packed boolean)
Comparative function
MAX
I1
I2
O
I3
The output is the highest input value.
O = MAX (I1, I2, I3)
Input I1, I2 and I3: 24 bit integer values (23 bits + sign)
Output (O): 24 bit integer (23 bits + sign)
Example with RESET
I1 I2 I3 O
0 0 False 0
1 0 False 1
1 1 False 0
0 1 False 0