APPENDIX E – NAMUR NE 107 - GUIDELINES FOR SETTING UP
NAMUR NE 107 is a set of guideline for reducing alarm flooding by allowing filtering of the diagnostic
data from the field. Developed as a specification for self-diagnosing field devices, it offers alarms that
are categorised into four standardised statuses:
Allocation Description Alarm
MAINT Maintenance required N107 Maintenance
OFF SPEC Out of specification N107 Out of Specification
CHECK Function check N107 Function Check
FAIL Failure N107 Failure
The Fieldbus Foundation has been collaborating with NAMUR and have adopted NAMUR’s NE-107
recommendations as part of the Foundation fieldbus Diagnostics Profile Specification (FF-912).
With the ITK6 FF option, Namur NE 107 diagnostics support has been implemented in all Rotork
actuators that support the FF CP option card as a set of status and alarm bits which can be allocated
to one of 4 alert levels. The actual function of each bit is actuator specific.
E.1 Background info:
The following diagram from the Fieldbus Foundation shows how polling and broadcast diagnostic
alarms are enabled:
Starting from the bottom of the above diagram:
The FD_...._MAP parameters are set to generate the FD_...._ACTIVE polling alarms
The FD_...._MASK can also be set to mask out the FD_...._ALM broadcast alarms.
The broadcast alarms require priority FD_...._PRI to be enabled.
The Rotork device has a number of alarms that can be selected for each diagnostic level, these are
selected in the MAP and you can see which ones are then active in the ACTIVE parameter.
The MAP parameter can also be set up in the Actuator NAMUR 107 menu, in the Assets section –
refer to section 5.6 in the Rotork publication PUB002-040 available on the Rotork web site.
http://www.rotork.com/master-popup/8953/
To Next Page
Loading...
