Rockwell Automation 22-COMM-L LonWorks Adapter - Manual (Page 29)

Chapter
4
Configuring the Network
Chapter 4 provides information about configuring network variables to
access a PowerFlex 40 or 400 drive when using a LonWorks adapter.
A network variable is a data item that a particular device application
program expects to get from other devices on a network (Network
Variable Inputs) or expects to make available to other devices on a
network (Network Variable Outputs). Data exchange on a LonWorks
network is handled with Standard Network Variable Types (SNVTs),
which represent different types of standard data (for example,
temperature, pressure, voltage, etc.).
When a program writes into one of its Network Variable Outputs, the
new value of the network variable is propagated across the network to all
nodes with Network Variable Inputs connected to that Network Variable
Output. A network variable can only be bound to another network
variable of the same type.
Specific network variables are described in Network Variable Inputs
(NVIs) on page 4-5 , Network Variable Outputs (NVOs) on page 4-7 , and
Network Configuration Inputs (NCIs) on page 4-13 .
Important: Any changes made using a PowerFlex 4-Class HIM to a
parameter that is also updated by the network will be
overwritten when the next network update occurs.
Topic Page
Overview of LonWorks Functionality 4-1
Operating the Drive Using a LonMark Profile 4-2
Node Operations 4-4
Drive Settings to Enable Operation on the Network 4-4
Network Variable Inputs (NVIs) 4-5
Network Variable Outputs (NVOs) 4-7
Network Configuration Inputs (NCIs) 4-13
Conditions Required for Operation 4-19
Resource Files 4-21
Overview of LonWorks Functionality