ABB RCNA-01 User Manual page 31

Rcna-01 controlnet adapter module
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31
26 VSA I/O Size
Defines the number of user-mapped data words in Vendor Specific
assemblies (instances 102, 103, 121 and 171). The value of this
parameter directly specifies the size (in words) of instances 102
and 103, whereas the size of instances 121 and 171 will be the
value of this parameter plus two words.
1 ... 32
Note: The Vendor Specific ControlNet Configuration object, Class
0x91, is activated when the VSA I/O size is set to 10 or larger.
Programming

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