CHAPTER 4: MAINTENANCE AND TROUBLESHOOTING
SNAP PAC R-Series Controller User’s Guide
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Resetting the Controller
1.
Carefully insert a straightened paperclip or stiff wire into the small hole labeled R
ESET
.
2.
Depending on the type of reset you need, press and hold down the RESET button as described
below. DO NOT hold the button down too long.
NOTE: Do not reset the brain to hardware test mode unless Opto 22 Product Support tells you to.
Reset type
How to use the reset button
What happens
Notes
Simple reset
Press and release immediately
Controller restarts.
Any files and the strategy are erased unless they
have been stored to flash memory. Archived strate-
gies are not erased.
Restore factory
defaults
Press just until STAT LED turns
solid green (1-2 sec)
Controller restarts.
If a microSD card is present
and contains config-
uration, firmware, and/or strategy files—Files on
the microSD card overwrite what is in flash mem-
ory and other files in flash memory are not erased.
Data files on the card are not affected.*
If no microSD card is present
containing configu-
ration, firmware, or strategy files—All files, strat-
egy, archived strategy, persistent variables, and
I/O configuration are erased from RAM and flash
memory, and IP addresses are reset to 0.0.0.0 and
subnet masks to 255.255.255.0.
If no microSD card is
present containing con-
figuration, firmware, or
strategy files, you must
reassign the IP address
and subnet mask.
Failsafe bootloader
mode
Press and wait while LED turns
solid green. Release when LED
starts to blink (2-5 sec)
Controller restarts.
Any files and the strategy are erased unless they
have been stored to flash memory. Archived strate-
gies are not erased.
Cycle power to recover.
Result is the same as a
simple reset.
Hardware test mode
Press and hold until LED starts
blinking orange rapidly and con-
tinuously (> 5 sec)
Controller restarts.
Any files, strategy, archived strategy, and persis-
tent variables in RAM and flash memory are
erased. I/O configuration in flash is erased
(R-series).
Data files on a microSD card are not affected.
IP addresses are reset to 0.0.0.0 and subnet
masks to 255.255.255.0.
To recover, restore to
factory defaults as
described above. You
also must reassign the IP
address and subnet
mask.
* Example of Restoring factory defaults when a microSD card is present: Suppose the card contains a firmware file but no configuration
or strategy files. Restoring to factory defaults will leave the controller with the firmware from the card and configuration and strategy files
from flash memory. You will not have to reassign an IP address or download a strategy.
