(E1145)Cannot use specified channel, already in use, E controller

kast2k · August 17, 2020 at 10:56 AM

Dear colleagues,

We are using Kawasaki E Controller.

Connection is made via telnet connection. (login: as). After that "WHERE 10" command is executed.

But if network connection is broken during unlimited reading "WHERE 10" results then there is a high possibility that after reconnection to robot i will receive this error "(E1145)Cannot use specified channel, already in use"

The only known way to fix it is to reboot the Robot.

Is there any command to reset this error without rebooting?

Thank You.

**kwakisaki** · August 17, 2020 at 3:27 PM

Welcome to the forum...............

Reduce the requirement for the usage of 'where' in your process.

kast2k · August 17, 2020 at 3:51 PM

I have read this also.

Real situation: on this month i need to gather CURRENT data from robot. On monday morning i'm connecting to it and stating data reading via "WHERE 10".

Robot is working non-stop from Monday till Friday.

In ideal case on Fridays evening i'm sending #10 command (Enter) and stop receiving. So, where command is stopped no error will be on next steps.

But if during period Monday-Friday there will be network error and i will reconnect then i will receive E1145.

May be you can give me an idea what can i use except "where" command for simultaneus read all 8 JT's ? Use Robot as TCP-client?

**kwakisaki** · August 17, 2020 at 3:59 PM

Quote from kast2k

Use Robot as TCP-client?

That would be a better solution in my opinion.

Create a background task and use TCPIP to send your specific data only when you require it.

kast2k · August 17, 2020 at 4:08 PM

Thank You

**kwakisaki** · August 17, 2020 at 4:42 PM

I would use the following command and prepare/encode it as a string and then send via TCPIP.

**kwakisaki** · August 18, 2020 at 10:12 AM

Just to add, you could also use the available data logging/data storage function for monitoring the motor currents.

It's not very flexible, just frequency really, just select what you want, start it, stop it, save it (which creates a .csv file).

I've never dived deep into using it though, in terms of saving and externally sending the file (may require a purchasable option.

May be worth exploring this option, as a 'ready' to go option.

kast2k · August 18, 2020 at 11:43 AM

Quote from kwakisaki

Just to add, you could also use the available data logging/data storage function for monitoring the motor currents.
It's not very flexible, just frequency really, just select what you want, start it, stop it, save it (which creates a .csv file).
I've never dived deep into using it though, in terms of saving and externally sending the file (may require a purchasable option.
May be worth exploring this option, as a 'ready' to go option.

Thank You. I've already tried this but it is not solution for me.

I will prepare a client script of robot and post it here for checking. So i will be very pleased if You or colleagues will help me with advice or error founding in it.

Aga_k2 · March 23, 2023 at 9:09 AM

Quote from kwakisaki

Welcome to the forum...............

Reduce the requirement for the usage of 'where' in your process.

Hey kwakisaki,
in which manual can I find this screen? I searched, but did not find it.

Alexandru · March 23, 2023 at 9:56 AM

The error codes can be found in the troubleshooting manual.

Aga_k2 · March 23, 2023 at 12:56 PM

Thanks, do you know where I can find this manual? I googled and went through the forum via search tool and found nothing.

**kwakisaki** · March 23, 2023 at 6:25 PM

Troubleshooting manuals are usually provided directly from your local Kawasaki distributor.

Please contact them, they are more than willing to supply them if you just ask.

Alternatively, join the Kawasaki Download Centre, you can then eat as many manuals as you can:

Kawasaki Robotics Download Centre - Manuals, Software and Tools for Kawasaki Robots - Robotforum - Support and discussion community for industrial robots and cobots (robot-forum.com)

However you will not find ALL error code explanations in there, many error codes are just in a list and the explanations have never been added to the manuals.

E1145 is one such error code.

Aga_k2 · March 24, 2023 at 8:15 AM

Thank you! I had a similar problem with the simultaneous read where command. I made an application that reads telnet data from a robot and I just want to secure my application if there are more cases like this.

**kwakisaki** · March 24, 2023 at 8:40 AM

I am not sure exactly why the 'where' commands create this error but I assume they are related to data storage option as that carries out same process (I think they use same channels).

The data storage option will allow logging and produces .csv file without need of using telnet to external sources.

This may be better to use to secure your application, maybe worthwhile looking into see if you have this option enabled or ask Kawasaki distributor to provide you this option.

Attached is the option manual, so you can at least research this option.

KRoset also has this function, so you can test it before deployment if you have KRoset.

(E1145)Cannot use specified channel, already in use, E controller

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