Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 61)

Setting up direct driver communications
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2–21
Tag monitor—Use the tag monitor to check the communication
status for a device tag. The states are:
Disabled if the node has been disabled in the Node editor or
disabled using the NodeDisable command
Error if RSView32 has tried to acquire a value but could not
because of some kind of communication error, such as a node
not being available or a DDE server not running
Stale if the tag value has been acquired before but does not
have an updated value
Uninitialized if the value has never been acquired
Valid if RSView32 has a valid value for the tag
None if there is a problem with the tag definition such as it is
not a valid tag type or if the tag database has been accessed with
a third–party tool such as Microsoft
® Access. If the underlying
tag type is valid, editing and saving the tag and then redisplaying
the tag monitor will fix the problem.
System\com tags—Use the system\com tags to receive a more
detailed error message. If the tag monitor reports an error, move
to an empty cell in the tag monitor, type system\com* and, when
the dialog box appears, click Select All. For a complete list of
system\com tags, see Appendix B, System tags.