NAMUR Status
The NAMUR Status is a standardized device status and color pairing. Red is failure, yellow is
out of specification, green is diagnostics active, which is the normal run mode. Added in are
"Check Function", "Maintenance Required", and "Diagnostics Inactive". These various statuses
and common causes are defined in the table below.
Color | Code | Description | Meaning | Common causes |
|---|---|---|---|---|
Red | 5 | Failure | Due to a malfunction in the device or its periphery, standard operation is not
possible. | Communications fault, missing solenoid valve, a pressure sensor is outside of the
error limit, etc. |
Orange | 4 | Check Function | The device is searching for a BüS participant. This status ends after a few
seconds. | The device is in Manual Mode, Simulation Mode, or during a firmware
update. |
Yellow | 3 | Out of Specification | The environmental or process conditions for the device are not within the
specified range. Internal device diagnostics indicate problems within the device or
with the proces properties. Datasheet values cannot be complied with. | Warning, feedback sensor is not working properly, Pressure sensor is outside the
warning limit, etc. |
Blue | 2 | Maintenance Required | The device has detected a deviation during ongoing diagnostics and has
implemented a correction. The device functionality is limited. The device is in
standard operation but function will soon be restricted. Perform device
maintenance. | Maintenance is required. A solenoid valve or feedback sensor cycle count has
exceeded the user-set limit. The cycle count will need to be reset to clear this
error. |
Green | 1 | Diagnostics Active | The device is in error-free operation. Status changes are highlighted in color.
Messages are sent via any fieldbus that may be connected. | The device is operating normally. |
White | 0 | Diagnostics Inactive | The device is powered on. Status conditions are not displayed. Messages are not
listed in the message list or transmitted via any connected fieldbus. The device is
running within its specifications. | The device is ignoring any changes to the device NAMUR Status. Errors will not be
displayed. |
Provide Feedback