OPTO 22 SNAP PAC S Series, User Manual

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CHAPTER 3: MAINTENANCE AND TROUBLESHOOTING
SNAP PAC S-Series User’s Guide 57
If the STAT LED blinks red and green alternately, it indicates the following:
If the STAT LED is blinking red, it indicates the following:
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
Number of
Blinks
Speed of
Blinks
Means
(continuous) fast
(Loader versions 5.1c and newer) Entering fail-safe bootloader mode. (See
“Resetting the Controller” on page 43 .)
Number of
Blinks
Speed of
Blinks
Means Problem and Workaround
2 slow Flash programming failure
Flash chips failed to erase properly or program
properly. Contact Product Support.
3 slow Firmware CRC check failed.
The firmware in the device is damaged. See
Replacing Damaged Firmware in chapter 6 of the
PAC Manager User’s Guide
(form 1704).
4 slow
Invalid MAC address or
hardware revision.
Contact Product Support.
5 slow Fatal error
Firmware or hardware problem. Check the power
supply and connections before restarting. Call Product
Support if the error is repeated.
6 slow RAM error Contact Product Support.
7 slow Loader problem
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.
8 slow WLAN failure
(Wired+Wireless models only) Try restoring the PAC
to factory defaults (see
“Resetting the Controller” on
page 43 ). If that doesn’t work, contact Product Sup-
port.
11 slow
Firmware failed to initialize
communications on ENET 1.
Contact Product Support.
12 slow
Firmware failed to initialize
communications on ENET 2.
Contact Product Support.
13 slow Real-time clock failure Contact Product Support.
16 slow Serial EEPROM failure Contact Product Support.
17 slow Serial port 0 failure Contact Product Support.
18 slow Serial port 1 failure Contact Product Support.
19 slow Serial port 2 failure
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
PAC Manager User’s Guide
(form 1704)
to install firmware version R8.3 or higher using Install
Firmware via Failsafe Bootloader Mode.
21 slow I/O expander failure (PAC-S2) Contact Product Support.
22 slow Serial port 3 failure (PAC-S2) Contact Product Support.
23 slow Watchdog reset failure Contact Product Support.