3.3    Setting with the Engineering Tool 
Unified Controller nv series PROFIBUS(PA912) Module Instruction Manual 
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3.3.2  Network variable registration method 
3.3.2.1  Registration of configuration 
1
  Register the PA912-N to the I/O node. 
Select [I/O node], and select the [File] menu - [New]. 
Specify  an  arbitrary  I/O  node  number  and  set  "I/O  node  device  name  = 
PA912-N." Then, click the [OK] button. 
 
 
Figure 3-43    New I/O node creation screen