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Get Attributes Scattered Example
The Get Attributes Scattered service can be used with the DPI Parameter
object to read the value of more than one parameter with a single
message instruction.
In this example, a read of PowerFlex 70 drive parameters 1 - [Output
Freq], 3 - [Output Current], and 6 - [Output Voltage] is being performed.
The Message Configuration screen in RSLogix 500 for this example is
shown in
Figure
5.9. It is assumed that the 1769-SM1 occupies slot
number 1, and that the PowerFlex 70 drive is connected to the 1769-SM1
channel 1.
Refer to
Table 5.A on page 5-11
box.
Figure 5.9 Get Attributes Scattered Read Message Configuration Screen
Configuration
Service Code
Class
Refer to
Appendix
message data format.
MicroLogix 1500 Ladder Example Program
for a description of the content in each
Value
Description
4B (hex)
Get_Attribute_Scattered
93 (hex)
DPI Parameter Object
C,
Object Specific Services
Refer to...
C-11
C-8
for information on the
5-15
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