Maple Systems OIT Family - Manual (Page 58)

To configure linear scaling in a PLC register monitor:
1. In the Register Monitor Editor dialog box, in the Special Effects group box, select the
Linear Scaling check box. The Linear Scaling Parameters group box activates.
You can easily calculate the values of M1, M2, and B if you know the following:
X
MIN
- lowest value contained in the PLC register
X
MAX
- highest value contained in the PLC register
Y
MIN
- lowest value to be displayed on the OIT screen
Y
MAX
- highest value to be displayed on the OIT screen
Using the above numbers:
M1 = Y
MAX
- Y
MIN
M2 = X
MAX
- X
MIN
B = (Y
MAX
X
MIN
- Y
MIN
X
MAX
) / (X
MIN
-X
MAX
)
PLC Register Monitors 58
1010-0099, Rev. 06