Interpreting LEDs
CNT-SVX06B-EN 61
The yellow LEDs on the Tracer ZN511 controller (see Figure 15 on
page 57) indicate the controller’s communications status (see Table 17).
Table 17. Yellow LED: Communications indicator
LED activity Explanation
LED is off continuously The controller is not detecting any
communication (normal for stand-
alone applications).
LED blinks. The controller detects communica-
tion (normal for communicating
applications, including data sharing).
LED is on continuously. Abnormal condition.