Rockwell Automation 20-COMM-Q ControlNet Adapter - Manual (Page 141)

Using Explicit Messaging 6-13
20-COMM-C/Q ControlNet Adapter User Manual
Publication 20COMM-UM003F-EN-P
Read Multiple Parameters
ControlLogix Controller Example Ladder Logic Program to Read Multiple
Parameters Using RSLogix 5000 Software, Any Version
A Scattered Read message is used to read the values of multiple parameters.
Up to 22 parameters can be read. This read message example reads the
values of these five parameters.
See DPI Parameter Object on page C-16 (Class code 0x93) or Host DPI
Parameter Object on page C-30 (Class code 0x9F) for parameter
numbering.
Important: See Table 6.A on page 6-2 for limitations of PowerFlex 7-Class
and PowerFlex 750-Series drives when using DPI Parameter
Object Class code 0x93 or Host DPI Parameter Object Class
code 0x9F for explicit messaging.
Table 6.F Example Controller Tags to Read Multiple Parameters
Figure 6.12 Example Ladder Logic to Read Multiple Parameters
PowerFlex 7-Class Drive PowerFlex 750-Series Drive
• Parameter 001 - [Output Freq]
• Parameter 003 - [Output Current]
• Parameter 006 - [Output Voltage]
• Parameter 012 - [DC Bus Voltage]
• Parameter 017 - [Analog In1 Value]
• Parameter 001 - [Output Freq]
• Parameter 007 - [Output Current]
• Parameter 137 - [Open Loop Fdbk]
• Parameter 21581 - [Port 5: Analog Out 0 Data]
• Parameter 260 - [Analog In0 Value]
Operand Controller Tags for Read Multiple Message Data Type
XIC Execute_Scattered_Read_Message BOOL
MSG Scattered_Read_Message MESSAGE