MELSECNET and CC-Link issue

[newguy937]

I currently am working on a project that involves adding CC-Link to an existing system that uses MELSECNET/H coax network.

I have a small scale mockup on my desk trying to make sure that there are no issues.

The setup on my desk consists of a main rack with a Q03UDECPU and a QJ71BR11 MELSEC module in slot 0.

The remote rack is also on my desk and it consists of a QJ72BR15 in the CPU slot, a QY10 output card in slot 0 and a QJ61BT11N CC-Link card in slot 3. At the other end of the CC-Link cable is a AJ65BTB1-16TE.

I have things to the point that I can force bits on the main plc and can see the output on the QY10 react, so I have at least some parts of MELSEC working correctly.

I can also force bits on the remote rack through a serial connection to the QJ72 and see outputs react on the AJ65 output block, so I have parts of CC-Link working as well.

What I am having trouble with is I can not figure out how to configure it so I can force bits on the Main PLC and see the AJ65 block react.

I am sure there is other information I need to provide, so let me know what you may need to know and I will dig it up.

Thanks in advance for any help.

 

[newguy937]

Anyone have any idea where I could start looking for a solution, or maybe a member here that I could PM?

 

[dploof23]

I currently am working on a project that involves adding CC-Link to an existing system that uses MELSECNET/H coax network.

I have a small scale mockup on my desk trying to make sure that there are no issues.

The setup on my desk consists of a main rack with a Q03UDECPU and a QJ71BR11 MELSEC module in slot 0.

The remote rack is also on my desk and it consists of a QJ72BR15 in the CPU slot, a QY10 output card in slot 0 and a QJ61BT11N CC-Link card in slot 3. At the other end of the CC-Link cable is a AJ65BTB1-16TE.

I have things to the point that I can force bits on the main plc and can see the output on the QY10 react, so I have at least some parts of MELSEC working correctly.

I can also force bits on the remote rack through a serial connection to the QJ72 and see outputs react on the AJ65 output block, so I have parts of CC-Link working as well.

What I am having trouble with is I can not figure out how to configure it so I can force bits on the Main PLC and see the AJ65 block react.

I am sure there is other information I need to provide, so let me know what you may need to know and I will dig it up.

Thanks in advance for any help.

What software are you using?

GX Works2 has CC-Link diagnostics built in to it. Also in the project tree under parameters, network parameters, cc-link, what are your head device settings? Can you post a screenshot of the network parameter screen?

Dave

 

[newguy937]

I am indeed using GX Works2.
The screen shot is of the CC-Link network parameters that I have set on the QJ72.

Am I correct in assuming that I should not have any definitions for the CC-Link on the Main PLC?

Also when I look at the CC-Link Diagnostics screen while connected to the QJ72 it appears normal.

 

[newguy937]

lets try that again

 

[dploof23]

I am sorry, I am unfamiliar with the QJ71BR11 and QJ72BR15 modules. I am assuming they are communication modules and there is only 1 CPU on board here.

I will have to do some research on the modules before I can help. I won't be able to do that until later this evening but maybe there is someone else here that can help.....

 

[newguy937]

Correct they are communication modules. QJ71 being a master module for MELSECNET and QJ72 taking place of the CPU on a remote rack.

Thank you for any help you may be able to provide.

As a side note I have reached out to Mitsubishi's Technical support and emailed them everything I have going on and have yet to hear back from them. The gentleman that I spoke with was not sure he could help over the phone or email alone.

 

[newguy937]

I believe I have solved my own problems.

So far I have everything working decently well with bit data and word data.

It ended up being a bad setting in the Network Range Assignment area of the MELSECNET Master unit on the Main rack, I was not moving the right bits in the right spots.

 

[dploof23]

I believe I have solved my own problems.

So far I have everything working decently well with bit data and word data.

It ended up being a bad setting in the Network Range Assignment area of the MELSECNET Master unit on the Main rack, I was not moving the right bits in the right spots.

That will do it, sorry I wasn't more help. Glad you got things resolved.

Regards,
Dave

 

[newguy937]

As am I.

I have been beating my head on my keyboard for almost two days trying to figure that out.

This is my first experience with MELSECNET and only my second experience with CC-Link so I really got thrown under the bus with this one.

I figured it out though. Now to start adding the rest of the features.

Thank you again for your willingness to help. I appreciate it.