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KB82101
Updating to firmware 9.2c or higher may fail on SNAP-PAC-R controllers
Revision:  7.0
Published:  10/25/2012
Applies To
Firmware for:
SNAP-PAC-R1
SNAP-PAC-R1-B
SNAP-PAC-R2
Versions
Problem affects all versions when
upgrading to this version or higher:  

PAC firmware R9.2c
Problem is fixed in version:  
PAC Manager R9.5b (see Resolution, below)

SYMPTOMS

NOTE: If your controller is secured with a private key through PAC Terminal Secure Strategy Distribution (SSD), see NOTES for SSD (below).

Attempts to download firmware version 9.2c or higher to a SNAP-PAC-R1, -R1-B, or -R2 controller may fail, with or without displaying a message. Messages that may be reported include:

  • "'Response' file is empty. Probable cause - not enough file space"
  • "File load failure: Memory allocate/flash"
  • "Invalid CRC in file"
  • The firmware update may fail and not show any errors.

NOTES for SSD

When a controller is programmed with a private key through PAC Terminal SSD*, you may see similar symptoms if you didn’t first digitally sign the firmware. For instructions to digitally sign the firmware, see Form 1762, Using Secure Strategy Distribution (provided when you purchase PAC Terminal SSD).

If the firmware is already digitally signed and you are still experiencing this issue, follow the steps in the WORKAROUND section.

* To determine if your controller is configured for SSD:

  1. In PAC Manager, click Tools > Inspect.

  2. Select "Other," and then set:
    • The Address field to F408004
    • The Type to 32-Bit Integer
    • The Length to 1
  3. Then click Refresh.
    If the resulting value is 2, the controller is configured for SSD.

WORKAROUND

IMPORTANT: To resolve this issue you must use PAC Manager R9.5b (or higher).


If Both ETHERNET 1 and ETHERNET 2 Are Configured
Follow these steps to remove the configuration from Enet 2 (which will set it back to 0.0.0.0):
  1. In PAC Manager R9.5b or higher, click Tools > Inspect, and then click Status Write.
  2. Scroll down to ETHERNET 2 Interface.
  3. If there is a valid IP address in the IP Address Value field, change it to 0.0.0.0 and then click Apply.
  4. Now try installing the firmware update.

If the firmware download succeeds, reassign the secondary IP address to the ETHERNET 2 Interface.
If the firmware download fails, proceed with the Workaround Steps (below). After completing the workaround, you can reassign the secondary IP address.


Workaround Steps
  1. In PAC Manager:
    • Select Tools > Inspect, and then enter the IP address in the Device Name field.
    • Click Status Write, then select Restart Device from powerup, and then click Send Command.
  2. Get the appropriate “bridge” firmware file from the Opto 22 FTP Site.
    • SNAP-PAC-R1: snap-pac-r1-S9.6a.bin
    • SNAP-PAC-R2: snap-pac-r2-S9.6a.bin
  3. Use PAC Manager to download the bridge firmware file to your SNAP-PAC-R controller.
    • If you were able to download the bridge firmware file, proceed to step 4.
    • If you are still not able to download the bridge firmware file,contact Opto 22 Product Support.
  4. Use PAC Manager to download the desired 9.2c or higher firmware file to your SNAP-PAC-R controller.

RESOLUTION

PAC Manager R9.5b and higher now include bridge firmware S9.6a, and will automatically attempt to detect the cases where the intermediate step of installing bridge firmware is needed. For cases where PAC Manager R9.5b (or higher) doesn't fully resolve the issue, see the WORKAROUND section for additional methods to update the firmware in your SNAP PAC R-series controller.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

DISCLAIMER

This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.

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