OPTO 22 SNAP PAC R SERIES, Руководство пользователя

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MAINTAINING THE SNAP PAC R-SERIES CONTROLLER
SNAP PAC R-Series Controller User’s Guide 40
Loading New Firmware
Each SNAP PAC R-series controller contains firmware (sometimes referred to as the kernel ), which is similar to
an operating system. If the firmware should become damaged, or if a new version of the firmware is released,
you can load new firmware to the controller following instructions in the
PAC Manager User’s Guide .
You can also load firmware using a microSD card (on R-series PACs that have a microSD card slot). See “Using
the MicroSD Card” on page 41 for details.
CAUTION:
Loading new firmware deletes your PAC Control strategy (even if stored to flash memory) and your
persistent variables. Make sure you have
archived
your strategy before loading new firmware.
Setting Time and Date
The SNAP PAC R-series controller’s built-in clock is set at the factory. To change the time and date, see the
instructions in the
PAC Manager User’s Guide.
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 memory
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, strategy,
archived strategy, persistent variables, and I/O con-
figuration 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 config-
uration, firmware, or strat-
egy 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 persistent
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 fac-
tory 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.