Campbell Scientific LoggerNet-SDK Software Development Kit - Manual (Page 97)

Section 16. CsiBrokerMap Control Reference
Column.writable
Name
Column.writable As Long
Description
This property is read-only and describes whether or not this column can be
changed or set by using the variableSet() method as described in the
CsiDatalogger Control.
COM Return Values
Table of Possible Values
Code Meaning
S_OK Success: Normal return
16-21