8.3 LEDs and Status Codes
LEDs give two types of status codes. The first type is a
single-color NAMUR status. The second type is a 4-blink
status that correlates to a specific positioner error or
condition. Regardless of the type of code (1 blink or 4), the
LEDs always indicate a code corresponding to the highest
priority alarm, warning, alert, or status that is currently active.
8.3.1 Single Blink NAMUR Color Codes
If buttons on the positioner have not been pressed recently,
the positioner will blink one color. This color represents one
of the 5 conditions outlined in the NAMUR standard, NE-107.
These are listed in Table 2: NE 107 Status Code
How these colors are assigned to specific conditions can be
customized in the DTM.
Table 2: NE 107 Status Code
8.3.2 4-Blink Status Codes
When a button is pressed on the positioner, the color code
will expand to a 4-color sequence. This corresponds to one
of the specific status indications listed in Appendix A - 4-Blink
Status Codes. When multiple codes are active, only the
highest priority condition is represented by the blink code. To
see all the active alarms and status conditions, use a DD or
DTM.
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