Arithmetic (Arthm) Function Block - Emerson Rosemount OCX8800C Manual

Manual
00809-0500-4881
Potential cause
The upstream block is sending back a Quality of Bad or a Status of Not Invited.
Recommended action
See the appropriate upstream block diagnostics for corrective action.
Mode will not change to CAS
Potential cause
Target mode not set.
Recommended action
Set target mode to something other than OOS.
Potential cause
The link for Cascade input (CAS_IN) is not configured.
Recommended action
Configure the CAS_IN link to the block.
Potential cause
The upstream block is sending back a Quality of Bad or a Status of Not Invited.
Recommended action
See the appropriate upstream block diagnostics for corrective action.
Mode sheds from RCAS to AUTO
Potential cause
Host system is not writing RCAS_IN with a Quality and Status of good cascade within shed
time. The mode shed timer, SHED_RCAS, in the resource block is shed too low.
Recommended action
Increase the value.
Mode sheds from ROUT to MAN
Potential cause
Host system is not writing ROUT_IN with a Quality and Status of good cascade within shed
time. The mode shed timer, SHED_RCAS, in the resource block is shed too low.
Recommended action
Increase the value.
8.10

Arithmetic (ARTHM) function block

The arithmetic function block provides the ability to configure a range extension function
for a primary input and applies the nine different arithmetic types as compensation to or
Rosemount OCX8800C
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OUNDATION
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