Serial Port Leds; Wlan Led (Wired+Wireless Models Only) - OPTO 22 SNAP-PAC-S1 User Manual

MAINTAINING THE CONTROLLER
Number of
Blinks

Serial Port LEDs

The S0, S1, and S2 LEDs on a SNAP-PAC-S1 controller indicate serial port operation as follows:
•
•
•
Each serial port on a SNAP-PAC-S2 has two green LEDs to indicate Transmit and Receive activity for
that port.

WLAN LED (Wired+Wireless Models Only)

The WLAN LED on a SNAP-PAC-S1-W or SNAP-PAC-S2-W indicates wireless LAN status and activity.:
Blinking green
50
SNAP PAC S-Series User's Guide
Speed of
Blinks
Firmware failed to initialize
12 slow communications on
ENET 2.
13 slow Realtime clock failure
Green—Transmit
Red—Receive
Amber—Transmit and Receive (the LED is actually changing rapidly between green and red,
which appears amber)
Color of
LED
Red The controller is disconnected from the wireless LAN.
The wireless LAN interface is scanning, associating, and
Orange
authenticating the wireless network.
Green The controller is connected to the wireless network.
Wireless LAN activity
Means
Contact Product Support.
Contact Product Support.
Means
Problem and Workaround