BRX has lost IP address

[franji1]

Very strange.  Do you happen to have a USB or Serial POM you could try (is POM slot open)?

[SceneryDriver]

Very strange.  Do you happen to have a USB or Serial POM you could try (is POM slot open)?

I don't currently - I'd have to order one.  The serial port on the unit is not currently used for anything, and according to the project file, it should be set for DoMore protocol, RS232, 115kbaud (all default settings).  I can see about trying to recover the thing via its serial port, but not sure I can afford the time for a tech onsite to continue poking at it.

To add to the mix, this is a remote site, and the tech had to get pulled off for another job.  I have to work on getting someone out there again.  At this point, I really just want to swap the PLC with a spare (with its IP address already properly set) and re-upload the program once it's reinstalled with its analog module.

Should I send the borked PLC back to Host or to AD to try to figure out what happened?  I'd really like someone to pull the logs and tell me what went wrong.  The whole point of this endeavor was to set up remote access for off-site support.  It works really well for the other BRX onsite, but not this one unfortunately.


SceneryDriver

[franji1]

Yes, we would like to figure out what's going on.  Sent you a PM with the details.

[franji1]

Got it. Hopefully we can figure it out.  Thank you!!

[BobO]

Took a look at your unit. The security config had NetEdit support disabled for the primary port. When I enabled it the unit immediately started responding correctly. I can't be certain that was your specific issue, but I am certain things won't work correctly with NetEdit support disabled.

I don't think we have your address to return the unit. The return address was to a UPS store. Please PM me the correct address and we'll get it in the mail.

[SceneryDriver]

Took a look at your unit. The security config had NetEdit support disabled for the primary port. When I enabled it the unit immediately started responding correctly. I can't be certain that was your specific issue, but I am certain things won't work correctly with NetEdit support disabled.

I don't think we have your address to return the unit. The return address was to a UPS store. Please PM me the correct address and we'll get it in the mail.

BobO,
Thank you for looking at (and fixing) my PLC.  I have absolutely no idea how NetEdit support was disabled on the Ethernet port.  When I left the unit after commissioning in December, it was working.  There's no one at the site who had the software/knowledge to disable that.  In fact, I didn't even know that was an option.  Very weird.  The power quality out there isn't the greatest - could a brownout/fast power cycle caused this issue?  I'd guess not, but I thought I'd ask.

I've sent you a DM with my shipping info.  I thought I was replying to franji's DMs, but I guess not.

Thanks to you and franji again!  Host's support is unmatched!


Sincerely,

SceneryDriver

[franji1]

PM's the USPS tracking #

[BobO]

BobO,
Thank you for looking at (and fixing) my PLC.  I have absolutely no idea how NetEdit support was disabled on the Ethernet port.  When I left the unit after commissioning in December, it was working.  There's no one at the site who had the software/knowledge to disable that.  In fact, I didn't even know that was an option.  Very weird.  The power quality out there isn't the greatest - could a brownout/fast power cycle caused this issue?  I'd guess not, but I thought I'd ask.

I've sent you a DM with my shipping info.  I thought I was replying to franji's DMs, but I guess not.

Thanks to you and franji again!  Host's support is unmatched!


Sincerely,

SceneryDriver

Since we prompt the user to choose security settings for old projects, we've had a few users inadvertently disable something they needed. As far as we are aware, the settings aren't changing themselves...although I've learned to never say never. If it happens again please let us know.

[SceneryDriver]

Since we prompt the user to choose security settings for old projects, we've had a few users inadvertently disable something they needed. As far as we are aware, the settings aren't changing themselves...although I've learned to never say never. If it happens again please let us know.
[/quote]

I received the PLC.  Thanks!

Is NetEdit enabled/disabled stored as a single bit?  Could this have been a bit flip?  I'm the only one who touched that program, and it was a new project as of December last year.

I used the hardware DIP switches to wipe out the Network settings and tried to recover the COMs that way.  Since it was the NetEdit setting, would using the DIP switches to completely wipe the PLC back to factory defaults and reloading the program have worked?  Asking in case I have to talk someone through this in the future.


Thanks,

SceneryDriver

[BobO]

I received the PLC.  Thanks!

Is NetEdit enabled/disabled stored as a single bit?  Could this have been a bit flip?  I'm the only one who touched that program, and it was a new project as of December last year.

I used the hardware DIP switches to wipe out the Network settings and tried to recover the COMs that way.  Since it was the NetEdit setting, would using the DIP switches to completely wipe the PLC back to factory defaults and reloading the program have worked?  Asking in case I have to talk someone through this in the future.


Thanks,

SceneryDriver

I would be very surprised if the flash was corrupted. Everything else seemed fine. The only thing I saw was that NetEdit and legacy support was disabled on the internal port. As I mentioned we do automatically prompt when you open an older project...one where they security settings haven't been set previously. We've had a couple of reports of folks ending up with some stuff disabled. To this point we're thinking they are handling the dialog without fully overstanding what we're asking...but...it's certainly possible that something is busted in the process of migrating the old project.

Yes, using the magic handshake to wipe the memory will restore the comms. The bad setting is still in your project though, so as soon as you write your project NetEdit goes away again. You just need to edit the project offline or before you write it to the PLC. Go to the SysConfig->CPU Configuration and select "Security Settings..." in the middle of the dialog. If memory serves, your project had "Disable Unencrypted Programming" unchecked and both "Disable NetEdit Setup" and "Disable Legacy Protocols" were checked.