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126
Commander SK Advanced User Guide
www.controltechniques.com Issue Number: 9
Only non-protected parameters can be programmed as a destination.
The binary sum output is given by:
One’s input + (2 x two’s input) + (4 x four’s input) + Offset
The value written to the destination parameter is defined as follows:
If maximum of the destination parameter is
≤
(7 + offset):
The value in the destination parameter = the binary sum output (Pr
9.32
)
If maximum of the destination parameter > (7 + offset):
The value in the destination parameter =
Destination parameter maximum x Binary sum output (Pr
9.32
) / (7 + offset)
The table below shows how the binary sum function operates with 0 offset.
If the parameter that the binary sum value is routed to has a maximum value of less than 7 then the destination parameter will be limited to the correct
value for that parameter independent of the binary sum output.
If the parameter that the binary sum value is routed to has a maximum value greater than 7 then the binary sum output will be scaled evenly across
the maximum range of the destination parameter.
The table overleaf shows how the binary sum function operates with an offset value.
9.32
Binary sum output
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
1
1
Range
0 to 255
Update rate
21 ms
9.33
Binary sum destination
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
2
1
1
1
1
Range
Pr
0.00
to Pr
21.51
Default
Pr
0.00
Update rate
Read on drive reset
9.34
Binary sum offset
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
Range
0 to 248
Default
0
Update rate
21 ms
Ones input
(Pr 9.29)
Twos input
(Pr 9.30)
Fours input
(Pr 9.31)
Binary sum
output
(Pr 9.32)
Value in destination parameter
Destination parameter with a
maximum value of 7 or less,
i.e. Pr 6.01 with a range of
0 to 4
Destination parameter with a
maximum value of greater than 7,
i.e. Pr 5.23 with a range of
0.0 to 25.0
0
0
0
0
0
0.0
1
0
0
1
1
3.6
0
1
0
2
2
7.1
1
1
0
3
3
10.7
0
0
1
4
4
14.3
1
0
1
5
4
17.8
0
1
1
6
4
21.4
1
1
1
7
4
25.0
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