Is it possible to communicate PLC's with different ip range?

Hello Friends

I have several machines with different ip range everyone, according with the image.

The PLC's are Micrologix 1100/1400 with unmanaged switch's.

I would like to get some tags in the PLC4 (DATA STATION) from every PLC (PLC1, PLC2, PLC3).

Is it posible just with configuration? How can I do that? Or do I need hardware?

I have done this with MSG instruction but with PLC's in the same ip range.

Thanks in advance.

If you can change the "Data Station" to either 10.7.20.XXX or 10.7.24.XXX
and change the subnet of your network to 255.255.255.248. Then all of your devices will be on the same Network.

If you don't have any routers you can only get them to talk to each other if you use a subnet that includes all the addresses.

If you use a subnet of 255.255.224.0 it puts all the addresses from 10.7.0.0 to 10.7.31.255 on the same network and they can all talk to each other directly.

Otherwise you are going to need a router or good managed switch to route the data between networks.

damica1 said:

If you can change the "Data Station" to either 10.7.20.XXX or 10.7.24.XXX
and change the subnet of your network to 255.255.255.248. Then all of your devices will be on the same Network.

Click to expand...

Assuming you mean 255.255.248.0?

Geoff White said:

If you use a subnet of 255.255.224.0 it puts all the addresses from 10.7.0.0 to 10.7.31.255 on the same network and they can all talk to each other directly.

Click to expand...

https://www.calculator.net/ip-subnet-calculator.html

Mark- said:

https://www.calculator.net/ip-subnet-calculator.html

Click to expand...

Nice find.

OT but what is the rule of thumb on setting up a subnet. I've done /17 and haven't had an issue but I'm seeing people say /24 or /22 should be your max. (I'm ignoring the vlan and layer 2 and 3 configuration for this question.)

mk42 said:

Assuming you mean 255.255.248.0?

Click to expand...

Thanks, for pointing that out. I hate typo errors!!!