13.2 Reviewing Iom Soft Failures; Iom Soft Failures; Stcovrun - Honeywell Series 8 I/O User Manual

13. Series 8 I/O Alarms and Failures
13.2. Reviewing IOM soft failures
When HALARMENABLE is disabled, all the existing HART events / alarms from that
channel block are disabled and further generation of the HART alarms / events are
terminated.
This parameter affects only the HART alarm / event behavior. The LED update of the
device status in the HART device status tab happens regardless of the state of
HALARMENABLE.

13.2 Reviewing IOM soft failures

IOM soft failures

The IOM reports device soft failures to Engineering station and also located on the
Control Builder configuration forms under the Soft Failures tab.
The table below lists all IOM soft failures and identifies those that appear within
Experion.
The SOFTFAIL1A, SOFTFAIL1B, SOFTFAIL2A, and SOFTFAIL2B parameters are
used to view an IOM's soft failures. For a list of channels in failure, use the
CHNLWFAILA and CHNLWFAILB parameters.
01

STCOVRUN

Sample time clock overrun.
Diagnostic check:
Cause:
Solution:
270
Investigate a possible I/O Link problem.
Sample time clock overrun.
Investigate a possible I/O Link problem or excessive IOL
activity. Check C300, IOL cables, IOMs, and IOL budgets. Call
TAC if the alarm persists or repeatedly occurs.
Series 8 I/O User's Guide
Honeywell
R500
April 2017