Emerson Rosemount 3095 - Page 89

Reference Manual
00809-0100-4716, Rev JA
May 2008
4-11
Rosemount 3095 MultiVariable
FIELDBUS
Types of Modes
For the procedures described in this manual, it will be helpful to understand
the following modes:
AUTO
The functions performed by the block will execute. If the block has any
outputs, these will continue to update. This is typically the normal
operating mode.
Out of Service (OOS)
The functions performed by the block will not execute. If the block has any
outputs, these will typically not update and the status of any values passed
to downstream blocks will be “BAD”. To make some changes to the
configuration of the block, change the mode of the block to OOS. When
the changes are complete, change the mode back to AUTO.
MAN
In this mode, variables that are passed out of the block can be manually
set for testing or override purposes.
Other Types of Modes
Other types of modes are Cas, RCas, ROut, IMan and LOW. Some of
these may be supported by different function blocks. For more information,
see the Function Block manual (document number 00809-0100-4783).
NOTE
When an upstream block is set to OOS, this will impact the output status of all
downstream blocks. The figure below depicts the hierarchy of blocks:
Resource
Block
Transducer
Block
Analog Input
(AI Block)
Other
function
blocks