Delta DVP-20PM

5 Applied Instructions and Basic Usage
DVP-20PM Application Manual
5-135
Source value
Destination value
D
S
1
0
=500
Slope=168
Offset=-4
Example 2
 Suppose the values in S
1
, S
2
, and S
3
are 500, -168, and 534 respectively.
When X10 is ON, the instruction SCAL is executed, and a scale value is stored
in D10.
 Equation: D10=(500×-168)÷1000+534=450
X10
SCAL
K500
K-168 K534 D10
Source value
Destination value
Slope=-168
Offset=534
D
S=500
1
0
Additional

rema
rk
Only when a slope and an offset are known can the instruction SCAL be used.
If a slope and an offset are unknown, it is suggested that users should use the
instruction SCLP.
 The value in S
2
must be in the range of –32,768 to 32,767 (The actual value in
S
2
must be in the range of –32,768 to 32,767.) If the value in S
2
is not in the
range, please use the instruction SCLP instead.
 If users use the slop equation above, the maximum source value must be
greater than the minimum source value, and the maximum destination value do
not have to be greater than the minimum destination value.
 If the value in D is greater than 32,767, the value stored in D will be 32,767. If
the value in D is less than -32,768, the value stored in D will be -32,768.