Rockwell Automation 20-750-CNETC PowerFlex Coaxial ControlNet Option Module - Manual (Page 80)

80 Rockwell Automation Publication 750COM-UM003B-EN-P - November 2012
Chapter 6 Using Explicit Messaging
ControlLogix Controller Example Ladder Logic Program to Read
Multiple Parameters
A Scattered Read message is used to read the values of multiple parameters. This
read message example reads the values of these five 32-bit REAL (floating point)
parameters in a PowerFlex 750-Series drive:
• Parameter 001 - [Output Frequency]
• Parameter 007 - [Output Current]
• Parameter 008 - [Output Voltage]
• Parameter 009 - [Output Power]
• Parameter 011 - [DC Bus Volts]
See DPI Parameter Object on page 115 (Class code 0x93) or Host DPI
Parameter Object on page 129 (Class code 0x9F) for parameter numbering.
Table 7 - Example Controller Tags to Read Multiple Parameters
Figure 23 - Example Ladder Logic to Read Multiple Parameters
Operand Controller Tags for Scattered Read Message Data Type
XIC Execute_Scattered_Read_Message BOOL
MSG Scattered_Read_Message MESSAGE