CHAPTER 4: MAINTENANCE AND TROUBLESHOOTING
SNAP PAC R-Series Controller User’s Guide
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The STAT LED blinks steadily while the strategy is loading and then blinks two sets of
three blinks—green to indicate success, or red to indicate failure. When the STAT LED
no longer blinks steadily, but blinks only once every five seconds, it has finished.
10.
If you want to save the strategy to flash memory, carefully insert a straightened
paperclip or stiff wire into the small hole on the controller labeled R
ESET
. Press and hold
the Reset button just until the STAT LED turns solid green, and then immediately
release the button.
The strategy is saved to flash memory. (If IP address, configuration, or firmware files are
on the card, they are also saved to flash memory.) Then the controller restarts.
11.
Wait until the STAT LED blinks only once every five seconds, and then remove the card.
Disabling or Enabling Firmware and Strategy Updates Via the Card
If you do not want anyone to be able to update firmware or strategies using a microSD card,
you can disable this feature in the controller. (Enabled is the default.)
1.
In PAC Manager, open the Inspect window for the controller.
2.
Click Other and choose Generic Read/Write from the popup menu.
3.
In the Address field, type F7002200. Choose 32-bit Integer as the Type.
4.
To disable firmware/strategy updates: In the Value column next to the address, type
0
(zero). Click Apply.
5.
To enable firmware/strategy updates: In the Value column, type any value other than
zero and click Apply.
Blink Codes
See
“Connectors and LEDs” on page 37
for the location of LEDs.
STAT LED
The STAT LED on the top of a SNAP PAC R-series controller uses blink codes to indicate status
conditions. The blink codes can be useful during operation and in troubleshooting.
If the STAT LED is on and remains green
, it indicates that a flowchart is running and a
user task is being executed.
If the STAT LED is on and remains orange
, it indicates that the controller is powered on,
but no flowchart is running. The STAT LED is solid orange in the following cases:
•
No strategy is in the controller
•
The strategy in the controller has stopped
•
The strategy in the controller has run, but there are no longer any charts running
