Serial Port Leds - OPTO 22 SNAP PAC S Series User Manual

If the STAT LED blinks red and green alternately, it indicates the following:
Number of Speed of
Blinks Blinks
(continuous) fast
If the STAT LED is blinking red, it indicates the following:
Number of Speed of
Blinks Blinks
2 slow Flash programming failure
3 slow Firmware CRC check failed.
Invalid MAC address or
4 slow
hardware revision.
5 slow Fatal error
6 slow RAM error
7 slow Loader problem
8 slow WLAN failure
Firmware failed to initialize
11 slow
communications on ENET 1.
Firmware failed to initialize
12 slow
communications on ENET 2.
13 slow Real-time clock failure
16 slow Serial EEPROM failure
17 slow Serial port 0 failure
18 slow Serial port 1 failure
19 slow Serial port 2 failure
21 slow I/O expander failure
22 slow Serial port 3 failure
23 slow Watchdog reset failure

Serial Port LEDs

The S0, S1, and S2 LEDs on a SNAP-PAC-S1 controller indicate serial port operation as follows:
• Green—Transmit
• Red—Receive
CHAPTER 3: MAINTENANCE AND TROUBLESHOOTING
(Loader versions 5.1c and newer) Entering fail-safe bootloader mode. (See
"Resetting the Controller" on page
Means
Flash chips failed to erase properly or program
properly. Contact Product Support.
The firmware in the device is damaged. See
Replacing Damaged Firmware in chapter 6 of the
PAC Manager User's Guide
Contact Product Support.
Firmware or hardware problem. Check the power
supply and connections before restarting. Call Product
Support if the error is repeated.
Contact Product Support.
Firmware or hardware problem. Confirm Ethernet
cables are connected. Try turning off power to the
controller and turning it back on again. Call Product
Support if the error is repeated.
(Wired+Wireless models only) Try restoring the PAC
to factory defaults (see
page 43). If that doesn't work, contact Product Sup-
port.
Contact Product Support.
Contact Product Support.
Contact Product Support.
Contact Product Support.
Contact Product Support.
Contact Product Support.
This error appears if your PAC-S has a microSD card
slot and you are using firmware R8.2 or lower. Follow
steps in the
to install firmware version R8.3 or higher using Install
Firmware via Failsafe Bootloader Mode.
(PAC-S2) Contact Product Support.
(PAC-S2) Contact Product Support.
Contact Product Support.
SNAP PAC S-Series User's Guide
Means
43.)
Problem and Workaround
(form 1704).
"Resetting the Controller" on
(form 1704)
PAC Manager User's Guide
57