Rockwell-automation 20-750-ENETR PowerFlexDual-Port EtherNet/IP Option Manual de usuario Pagina 105

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Rockwell Automation Publication 750COM-UM008A-EN-P - July 2012 105
Using Explicit Messaging (Adapter mode only) Chapter 6
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 163 (Class code 0x93) or Host DPI
Parameter Object on page 177 (Class code 0x9F) for parameter numbering.
Table 8 - Example Controller Tags to Read Multiple Parameters
Figure 28 - 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
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