Allen-Bradley 1444-TSCX02-02RB User Manual page 453

Alarm Processing Mode
The following alarm processing modes are supported per alarm output.
Table 184 - Alarm Processing Mode
Value
0x00
0x01
0x02
In adaptive alarming mode, a control variable is defined and the magnitude of
that variable dictates a factor that is applied to the configured alarm thresholds.
This action is applied in a number of discrete bands or ranges, which are
defined in attributes 41...50. The control variable is often speed, but can be
selected from among any measurement available to the module, refer attribute
40.
An illustrative example, which is based on speed and use of all five available
ranges, is as follows:
• Range 1 < 500 rpm
• Range 2 500 to
• 1000 rpm
• Range 3 1000 to
• 1500 rpm
• Range 4 1500 to
• 2000 rpm
• Range 5 > 2000 rpm
The upper control value for each range is shown in bold (Range 5 doesn't have
an upper limit). For each of the five ranges, a separate alarm threshold factor
can be applied.
Hysteresis
Hysteresis is defined here as a percentage rather than a fixed deadband value:
• For threshold alarms, the deadband is the stated percentage of the
threshold.
• For window alarms, the deadband is the stated percentage of the range of
the window (high - low).
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Description
(0) - Normal, use of fixed alarm level
(1) - Adaptive Monitoring, allow on-board module configuration for 5 alarm level
threshold sets that are linked to speed or other parameter
(2) - Profile Alarming, where the alarm profile is external from the main module
configuration and are communicated using the I/O table
CIP Objects Appendix A
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