Omron NX remote IO - PLCS.net

prodigy · March 17th, 2023, 04:51 PM

Hey yall,
I have a project where I am using an NX EIC202 remote IO unit and an NX102 PLC. The problem I am having is that the IO is on a different network than the PLC in the facility and I cant get them to communicate. Have any of you had any experience getting things like this to talk across the different networks?

lostcontrol · March 17th, 2023, 10:44 PM

Why are they on different networks?
For deterministic IO, that is just wrong.
If they must be on different networks, you would be better off putting another PLC on the other network & messaging.

prodigy · March 17th, 2023, 11:22 PM

That’s the network setup at the facility. Putting in another PLC isn’t really an option.

AlfredoQuintero · March 17th, 2023, 11:38 PM

prodigy, hi. I do not get the requirement clearly.
The NX102 PLC is an EtherNet/IP scanner and the NX EIC202 is an EtherNet/IP adapter and they are in physically separate networks?
How is the physical connection established? By means of a router? Is there a requirement to establish IO communication between the PLC and the remote IO, or would periodical explicit message request from the PLC to the remote IO suffice? I think the requirements need to be refined, or we cannot provide useful advice.

BobB · March 18th, 2023, 03:35 AM

What can I say - stupid! LOL IT driven I guess.

prodigy · March 18th, 2023, 08:48 AM

Yes, they are connected to different network switches in the plant. For example, the IO would be on a 12.232.42.xxx and the PLC would be on a 12.232.45.xxx network. I only need to turn on 3 outputs from time to time to turn on a a set of lights.

the_msp · March 18th, 2023, 11:15 AM

Then you might get away with changing the 3rd octet of the subnet mask, assuming it's currently /24.

Sounds like IT created the problem, throw it back at them.

lostcontrol · March 18th, 2023, 01:32 PM

Have you set the gateways correct at each end?

March 17th, 2023, 04:51 PM	#1
prodigy Member Join Date: Aug 2009 Location: alabama Posts: 8	Omron NX remote IO Hey yall, I have a project where I am using an NX EIC202 remote IO unit and an NX102 PLC. The problem I am having is that the IO is on a different network than the PLC in the facility and I cant get them to communicate. Have any of you had any experience getting things like this to talk across the different networks?

March 18th, 2023, 03:35 AM	#5
BobB Lifetime Supporting Member Join Date: Jun 2002 Location: Sydney Posts: 4,511	What can I say - stupid! LOL IT driven I guess. __________________ The Old Pfhaart

March 18th, 2023, 11:15 AM	#7
the_msp Lifetime Supporting Member Join Date: May 2008 Location: Northern Ireland Posts: 1,180	Then you might get away with changing the 3rd octet of the subnet mask, assuming it's currently /24. Sounds like IT created the problem, throw it back at them. __________________ Regards, Patrick G. B.Eng MIET Making the flashy lights flash since the 90's SCADA - Inductive Automation Gold Integrator \| PLC \| Control Panels \| Robotics \| Training Connect with Matrix Engineering My son was chewing on an electrical cord, so I had to ground him. He is doing better currently and conducting himself properly. My electrical skills are quite poor, which is a shock to some people

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March 17th, 2023, 10:44 PM	#2
lostcontrol Lifetime Supporting Member Join Date: May 2009 Location: NeverSayNever Posts: 954	Why are they on different networks? For deterministic IO, that is just wrong. If they must be on different networks, you would be better off putting another PLC on the other network & messaging.

March 17th, 2023, 11:22 PM	#3
prodigy Member Join Date: Aug 2009 Location: alabama Posts: 8	That’s the network setup at the facility. Putting in another PLC isn’t really an option.

March 17th, 2023, 11:38 PM	#4
AlfredoQuintero Lifetime Supporting Member Join Date: Feb 2015 Location: Yokohama Posts: 1,285	prodigy, hi. I do not get the requirement clearly. The NX102 PLC is an EtherNet/IP scanner and the NX EIC202 is an EtherNet/IP adapter and they are in physically separate networks? How is the physical connection established? By means of a router? Is there a requirement to establish IO communication between the PLC and the remote IO, or would periodical explicit message request from the PLC to the remote IO suffice? I think the requirements need to be refined, or we cannot provide useful advice.

March 18th, 2023, 08:48 AM	#6
prodigy Member Join Date: Aug 2009 Location: alabama Posts: 8	Yes, they are connected to different network switches in the plant. For example, the IO would be on a 12.232.42.xxx and the PLC would be on a 12.232.45.xxx network. I only need to turn on 3 outputs from time to time to turn on a a set of lights.

March 18th, 2023, 01:32 PM	#8
lostcontrol Lifetime Supporting Member Join Date: May 2009 Location: NeverSayNever Posts: 954	Have you set the gateways correct at each end?

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