PLC not booting after download

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1

After downloading to PLC. PLC getting stuck to reboot and automation studio loose the connection. download window stays open. R/E led is read and PLC was in boot mode when i started download

2

Hi Jitender,

it looks like the PLC is in SERVICE or BOOT mode, when the R/E led is red.

The easiest thing to do is to restart the PLC by powerfail (short disconnecting it from the power supply). Then try to transfer the project again.
If that doesn’t help, we need more information:

  • What type of PLC do you have?
  • Did the PLC run before?
  • Did you have a stable connection to the PLC?
  • How are the Ethernet parameters (IP address) of the PLC set?
  • Is it possible that the IP is being changed from the application (any PLC task)?

You could also try to look in the logger. If the PLC does not boot but has a CF card (depending on the PLC), you could read the CF from the PC.

3

yes PLC is in Boot mode. is it not possible to download in Boot mode?
i had to put it in boot mode with reset because of this problem . after resetting i am able to connect to PLC.
PLC was running and when i started the download this error occurred . after that i could not connect to PLC . so i reset the PLC with reset button and put
plc in boot mode. now i can set IP in PLC but download is completing. PLC is CP3687X.
I have set Ethernet parameter to static IP IN configuration.

image
image1920×1140 325 KB

PLC
PLC951×494 33.7 KB

4

Hi,

the IP 192.0.0 for your subnet ist not valid. For local networks only 192.168.x.x is valid and allowed.

I’m not sure, if this is your problem, but you should change it.

What you could do

  • Activate SNMP in the ETH settings (in your screenshot disabled). Then you could see your Plc with the browse dialogue.
  • You use AS6.0 with AR6.0. This is allowed, but it was the first AS6 version and is not so stable. I would recommend to use actual versions (AS6.5.1 and AR6.6).
  • Maybe create your CF card with an card reader could help, if you can’t get online again. Use Alt-F8 in AS.
5

HI @Jitender_Kaushik , have you solved your issue, can you update us?

6

Hi , Not yet. using the New CF didn’t helped . l also tried to using SNMP service but same result. Eventually we replaced the PLC.

7

ok, please update us with result of your testing with new hw.

8

Hi. i have tried resetting the card and try again. i could download in PLC but automation studio get hanged on reconnecting window. i have checked the PLC have static IP and my laptop is also in same subnet.
i am not able to do offline transfer to card because of laptop restriction. how can i solve this issue.