Omron NX1P2 EtherCAT question

[Killercal]

Hey everyone,

I have a customer that has an existing machine that needs more IO added to it. Right now the setup is as follows.

CPU - NX1P2
EtherCAT:
Node 1 - NX-ECC202
[7] NX-ID5442 input cards (16 point)
[1] NX-PF0630
[5] NX-OD5256 output cards (16 point)

Node 2 - NX-ECC202
[3] NX-ID5442 input cards (16 point)


Customer wants 25 outputs and 20 more inputs added to machine and the panel is tight so I need to add another EtherCAT node. So in the code I added another NX-ECC202 and then went to add [2] NX-ID5442 and [2] NX-OD5256. When I did this I got an error saying "Units exceeded for CPU type". I did a quick google search and found a manual stating that this CPU has a 16 slave maximum.

I started to mess around with the IO units and found that when I replaced [2] NX-ID5442 with [1] NX-ID6142-5 it now had only 15 units. I then added [1] NX-OD5256 to see if the program would give me an error and it didn't.

Here is my question: Can I replace [8] NX-ID5442 with [4] NX-ID6142-5 and then replace [4] NX-OD5256 with [2] NX-OD6256 and then add the cards that I need for the extra IO the customer wants?

I know doing the above I will have to re-assign the IO that have moved units.

Thanks,

Scott

 

[Killercal]

I'm guessing not too many people have had this issue with this CPU type. I have reached out to Omron directly and will post my findings incase anyone comes across this issue.

 

[JasonWade]

The NX-ID6142 looks like it need a cable and breakout box.

If you're short of space, have you considered the NX-ID6442 (or 6342 for NPN), and the NX-OD6256 (or 6121 for NPN)?

 

[IO_Rack]

Hey everyone,

So in the code I added another NX-ECC202 and then went to add [2] NX-ID5442 and [2] NX-OD5256. When I did this I got an error saying "Units exceeded for CPU type".

Are you sure you added the cards in the proper area? I see nothing wrong with this setup and it compiles fine in a test project. The limit I experienced was 16 for each EtherCAT Coupler.

EtherCAT:
Node 1 - NX-ECC202
[7] NX-ID5442 input cards (16 point)
[1] NX-PF0630
[5] NX-OD5256 output cards (16 point)

Node 2 - NX-ECC202
[3] NX-ID5442 input cards (16 point)

Node 3 - NX-ECC202
[2] NX-ID5442 input cards (16 point)
[2] NX-OD5256 output cards (16 point)

That being said, Omron will be your number one source.

 

[JasonWade]

Are you sure you added the cards in the proper area? I see nothing wrong with this setup and it compiles fine in a test project. The limit I experienced was 16 for each EtherCAT Coupler.

EtherCAT:
Node 1 - NX-ECC202
[7] NX-ID5442 input cards (16 point)
[1] NX-PF0630
[5] NX-OD5256 output cards (16 point)

Node 2 - NX-ECC202
[3] NX-ID5442 input cards (16 point)

Node 3 - NX-ECC202
[2] NX-ID5442 input cards (16 point)
[2] NX-OD5256 output cards (16 point)

That being said, Omron will be your number one source.

You are right. It's possible to have 8 NX units on the CPU plus a further 16 NX units on the EtherCAT slaves.

The OP looks to have all of the NX units on the EtherCAT, none on the CPU

 

[Killercal]

The NX-ID6142 looks like it need a cable and breakout box.

If you're short of space, have you considered the NX-ID6442 (or 6342 for NPN), and the NX-OD6256 (or 6121 for NPN)?

Thanks for the reply Jason.

Yes I would rather use the non-breakout cable one, but it was not an option on my Sysmac Studios. I need to get that file installed so I can use the regular NX-OD6256.

Do you know what that file is called? This is only my second project with Sysmac and I had to install some safety modules a couple years ago.

Scott.

 

[Killercal]

Are you sure you added the cards in the proper area? I see nothing wrong with this setup and it compiles fine in a test project. The limit I experienced was 16 for each EtherCAT Coupler.

EtherCAT:
Node 1 - NX-ECC202
[7] NX-ID5442 input cards (16 point)
[1] NX-PF0630
[5] NX-OD5256 output cards (16 point)

Node 2 - NX-ECC202
[3] NX-ID5442 input cards (16 point)

Node 3 - NX-ECC202
[2] NX-ID5442 input cards (16 point)
[2] NX-OD5256 output cards (16 point)

That being said, Omron will be your number one source.

I think I had them in the right place. I will try again and take screen shots.

Still nothing back from Omron, but will let you know what I hear.

What CPU did you have in your test project?

Thanks,

Scott

 

[IO_Rack]

I tried a 1040DT and a 9024DT. Looking at the specs on Omron's website showed the EtherCAT specs to be the same for all models. The 8 unit limit for the CPU is the same for all models as well.

 

[JasonWade]

Thanks for the reply Jason.

Yes I would rather use the non-breakout cable one, but it was not an option on my Sysmac Studios. I need to get that file installed so I can use the regular NX-OD6256.

Do you know what that file is called? This is only my second project with Sysmac and I had to install some safety modules a couple years ago.

Scott.

Firstly, I didn’t install any files to make those IO cards available, they were already in sysmac studio, from memory I have V1.52

Secondly, as you described in your first post, all of your IO is on ethercat couplers, and the max is 16 units, and you exceeded this when you added two units. You can however mount a further 8 units adjacent to the CPU WITHOUT adding another ECC202 coupler/node

 

[Killercal]

Firstly, I didn’t install any files to make those IO cards available, they were already in sysmac studio, from memory I have V1.52

Ah, I'm running V1.44. I need to install those modules, I'll google it.

Thanks all for your help on this and I will update you on what Omron says about replacing the 16-point cards with the 32-point cards.

Scott

 

[Killercal]

Omron Tech support got back to me and replacing [2] 16-point cards with [1] 32-point card will decrease the NX units by 1. Thus swapping [10] NX-ID5442 cards for [5] NX-ID6442 and [4] NX-OD5256 with [2]NX-OD6265 will allow me to add more cards to the EtherCAT network.

Also the NX-ID6442 and NX-OD6265 cards are only available on V1.52 of Sysmac Studios.

Hope this can help others in the future. Thanks all who replied.