44
allowed, then network configuration tools such as
RSNetWorx
will typically
calculate the engineering value via Equation 1:
Divisor
Multiplier
x
Offset)
Value
(Actual
Value
g
Engineerin
+
=
(
Equation 1
)
The engineering value can then be displayed to the user in the terms specified
within the Precision (menu selection number 15). For example, if a DeviceNet
parameter maps to an adjustable speed drive’s frequency command value,
where an actual value of 0 ~ 6000 represents 0.00Hz ~ 60.00Hz, then typical
scaling values for use in Equation 1 would be:
Offset........... 0
Multiplier...... 1
Divisor ......... 100
Precision ..... 2
An example of allowing scaling would be “
11 Y
”.
Multiplier:
Enter menu selection number 12 with a multiplier value. Valid
values are 0 ~ 65535. This field is used only for EDS file generation. For
typical application of the multiplier value, refer to Equation 1. An example of
setting the multiplier to 1 would be “
12 1
”.
Divisor:
Enter menu selection number 13 with a divisor value. Valid values
are 0 ~ 65535. This field is used only for EDS file generation. For typical
application of the divisor value, refer to Equation 1. An example of setting the
divisor to 100 would be “
13 100
”.
Offset:
Enter menu selection number 14 with an offset value. Valid values
are -32768 ~ 32767. This field is used only for EDS file generation. For typical
application of the offset value, refer to Equation 1. An example of setting the
offset to -100 would be “
14 -100
”.
Precision:
Enter menu selection number 15 with a precision value. Valid
values are 0 ~ 255. This field is used only for EDS file generation. The
precision specifies the number of decimal places to use when displaying the
scaled engineering value. An example of setting the precision to 2 would be
“
15 2
”.
13.5.1.2
Add a New Point
To add a new point to the configuration, enter menu selection number 2 with
the additional arguments of the device on which the data object resides and
the data object index. The DeviceNet parameter number of the new point will
automatically be assigned as the next sequential free parameter number. For
example, the bottom of Figure 20 shows an example of adding a new point to
map to ASD2 (the device on which the data object resides), ASD parameter
FE07 (the data object index). This new point will automatically be assigned
DeviceNet parameter number 4. As mentioned previously, the semantics of
Summary of Contents for DNET-100
Page 8: ...7 2 Mechanical Diagrams 2 1 Enclosure Figure 2 Enclosure Dimensions units are inches ...
Page 9: ...8 2 2 Mounting Clip Figure 3 Mounting Clip Dimensions units are inches ...
Page 11: ...10 ASD Link LEDs Reserved LEDs ASD 2 ASD 3 ASD 1 Figure 6 Top View ...
Page 39: ...38 Figure 15 HyperTerminal Configuration Screen 3 ...
Page 68: ...67 16 Notes ...
Page 69: ...68 ...
