Wavetronix Command Collector (CMD-DCx) - User Guide - Manual (Page 26)

CHAPTER 3 • SENSORS PAGE 25
Note
See the Display Settings control section to learn how to select all of the sensors in
the sensor list.
Com
The Com column contains a communication status value for each sensor in the list. The
communication status of a sensor is based upon:
˽ Communication History – The successes and failures of the most recent 100 attempts
by Collector to communicate with that sensor.
˽ System Thresholds – There are two types of thresholds: total percentage and consecu-
tive failures. (They can be set on the System page, within the Settings section.) The
thresholds pertain to all sensors within Collector. Both thresholds—percentage and
consecutive—are looking at the same communication data, and are looking at the same
problems represented within that data. Percentage and consecutive each have a defined
warning (yellow) and error (red) threshold.
By default, warning thresholds are 20 percent or 3 consecutive failures, and error
thresholds are 50 percent or 10 consecutive failures.
The possible statuses of a sensor are:
Green circle – Indicates that the sensor is collecting successfully. For the most recent
100 communications, the error count was below the sensor warning threshold per-
centage and the consecutive failure count was below the consecutive failures warning
threshold.
Yellow triangle – Indicates that some problems have occurred. For the most recent
100 communications, either the error count exceeded the sensor warning threshold
percentage or the consecutive failure count exceeded the consecutive failures warning
threshold, or both thresholds were exceeded. However, both counts were below their
respective red thresholds.
Red square – Indicates that frequent problems occurred. For the most recent 100 com-
munications, either the error count exceeded the Sensor Error Threshold percentage
or the consecutive failure count exceeded the Consecutive Failures Error threshold, or
both thresholds were exceeded.
Light gray circle – Appears next to sensors that are currently turned off in Collector
(but not necessarily disconnected in the field).