Allen-Bradley POINT I/O PROFIBUS 1734-APB, Руководство пользователя, Страница: 50 / 88

Publication 1734-UM005B-EN-P - June 2001
4-12 Communication and I/O Table Mapping
Station Status 2
Station Status 3
Bit Description Cause
0 - Parameterization
requested The slave has forced the
master system to do a new
parameterization. This bit is set as long as new
parameterization must be performed.
1 - Static diagnostic The adapter cannot provide
valid I/O data. The backplane bus communication is
terminated. This bit will not be cleared
(0) until the power to the adapter is
cycled.
2 - Not used Always set to 1.
3 - Watchdog on Watchdog control is the
adapter is active to
supervise its corresponding
master connection.
4 - Freeze mode The adapter has received a
freeze command.
5 - Sync mode The adapter has received a
sync command.
6 - Reserved Always set to 0.
7 - Slave deactivated The adapter has been
marked inactive in its
parameter set and has been
removed from cyclic I/O
processing. Check bus settings in the configuration
tool.
Bit Description Cause
0 to 6 - Not used These bits are always 0.
7 - Diagnostic overflow There are more diagnostic
messages than the adapter
can store. More than 10 channel-related
messages present at the same time.
Note: New messages are queued in
the adapter and are passed on to the
master as soon as ther is space in the
diagnostic buffer.