Hi Guys.
I am having major issues with Axiom 1L scanners.
All 20 scanners started this out of the blue and is now happening everyday.
These scanners are going into some kind of transient state where they are not accessible using Axiom Access Software and are in a locked condition.
The images I sent shows what lights are on in this unusable state and one showing normal state.
I can reboot the scanner and it could be fine for a day or 2 or an hour and the same issue happens.
I noticed when rebooting these scanners after this condition occurs the first line in the scanner log viewer says Restart after Watchdog timeout
I have about 20 of these doing the same thing.
Called Data logic tech support and they were no help.
Nothing has been added or changed. It just started all of a sudden.
Any help would be greatly appreciated.
Thank You,
Larry

 

I had a similar issue with tension measurement modules, which were networked and were being queried for data by a prosoft Modbus TCP gateway. They were having TCP connections made each time they were being sent the setpoints data, which were never dropped again so each device began to rack up lots of open port connections each, then they would fall over and stop working.

The solution in my case was to set the gateway to only send data if it changes and that resolved the issue.

So while this may not be exactly the same thing you have, it could be similar in that something is making TCP connections to them to get data and it's too often, or the sockets never get closed etc. just a thought.

I found out by using putty or telnet, connect to the IP of one device and try typing "netstat" to see if it responds with a connection list. If it runs a little Linux network stack inside, then you may get lucky and be able to see any network errors there.

I could be way off target but thought it worth mentioning.

 

I had a similar issue with tension measurement modules, which were networked and were being queried for data by a prosoft Modbus TCP gateway. They were having TCP connections made each time they were being sent the setpoints data, which were never dropped again so each device began to rack up lots of open port connections each, then they would fall over and stop working.

The solution in my case was to set the gateway to only send data if it changes and that resolved the issue.

So while this may not be exactly the same thing you have, it could be similar in that something is making TCP connections to them to get data and it's too often, or the sockets never get closed etc. just a thought.

I found out by using putty or telnet, connect to the IP of one device and try typing "netstat" to see if it responds with a connection list. If it runs a little Linux network stack inside, then you may get lucky and be able to see any network errors there.

I could be way off target but thought it worth mentioning.

The network team has done a study on the port activity and does not see any abnormal activity.
Where this situation is different is it is trying to perform a reboot and seems to hang in the process. You can still ping it but it is like it started a reboot but never finished.
I put a brand new Axiom 1L Scanner and Base along with a small ups and it still does the same thing.
This is happening randomly to a lot of the scanners
One day you will get one scanner and the next day it will happen to 5 or 6 of them
There is no pattern to this happening except that if it is not connected to an Ethernet port the scanner is fine
This only happens when it is connected to the wired Ethernet.
Network group has replaced the switch but still occurs.
Ruled out defective scanners by replacing the one I have stated above.
Never saw an issue like this just starting out of the blue with nothing changed.
Could WI-FI Antenna points be interfering with the scanners? Seems far out but grasping at straws here
We have a couple new DataLogic DS8110 scanners are not affected

 

I've never met an IT team or network people who actually grasped industrial comms or protocols. If you are reliant on IT people helping you solve this, you'll wait a long time in my experience. You need to connect to the axiom with Telnet or Putty, have a poke around and see what's going on. It sounds very similar to what was happening to me. And I don't expect the WiFi can be the issue.

Could be overloading of resources on the network, or blocking of ports, or open TCP connections not getting closed, or devices not set to pass on VLAN tagged packets, heck lots of things. Can you wireshark between a scanner and a device which connects to it and look at the packets. May need to use a switch where you can set one port to be the mirror and listen on that one.