Table 8-29: BLOCK_ERR Conditions
(continued)
Condition
number
Condition name and description
4 Local Override: The actual mode is LO.
5 Device Fault State Set
6 Device Needs Maintenance Soon
7 Input Failure/Process Variable has Bad Status: The parameter linking to
IN is indicating a Bad status.
8 Output Failure
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.
8.10.2 Modes
The ARTHM block supports the following modes:
• 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.
8.10.3
Alarm detection
A block alarm is generated whenever the BLOCK_ERR has an error bit set.
Block errors defines the types of block errors for the arithmetic block. Alarms are
grouped into five levels of priority:
Priority
number
Priority description
0 The priority of an alarm condition changes to 0 after the condition that
caused the alarm is corrected.
Manual FOUNDATION
™
Fieldbus
00809-0500-4880 December 2022
Rosemount OCX8800A 199
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