Emerson Oxymitter 5000 Instruction Manual page 134

Model 4081FG Oxygen Analyzer with F
TABLE B-2. BLOCK_ERR Conditions.
Modes
Alarm Detection
B-6
fieldbus Communications
OUNDATION
Condition
Condition Name and Description
Number
0 Other
1 Block Configuration Error: the selected channel carries a measurement that
is incompatible with the engineering units selected in XD_SCALE, the L_TYPE
parameter is not configured, or CHANNEL = zero.
2 Link Configuration Error
3 Simulate Active: Simulation is enabled and the block is using a simulated value
in its execution.
4 Local Override
5 Device Fault State Set
6 Device Needs Maintenance Soon
7 Input Failure/Process Variable has Bad Status: The hardware is bad, or a bad
status is being simulated.
8 Output Failure: The output is bad based primarily upon a bad input.
9 Memory Failure
10 Lost Static Data
11 Lost NV Data
12 Readback Check Failed
13 Device Needs Maintenance Now
14 Power Up
15 Out of Service: The actual mode is out of service.
The AI Function Block supports three modes of operation as defined by
the MODE_BLK parameter:
• Manual (Man) The block output (OUT) may be set manually
• Automatic (Auto) OUT reflects the analog input measurement
or the simulated value when simulation is enabled.
• Out of Service (O/S) The block is not processed. FIELD_VAL
and PV are not updated and the OUT status is set to Bad: Out of
Service. The BLOCK_ERR parameter shows Out of Service. In
this mode, you can make changes to all configurable parameters.
The target mode of a block may be restricted to one or more of the
supported modes.
A block alarm will be generated whenever the BLOCK_ERR has an
error bit set. The types of block error for the AI block are defined above.
Process Alarm detection is based on the OUT value. You can configure
the alarm limits of the following standard alarms:
• High (HI_LIM)
• High high (HI_HI_LIM)
• Low (LO_LIM)
• Low low (LO_LO_LIM)