# Mitsubishi Ethernet Communication

**URL:** <https://discourse.nodered.org/t/mitsubishi-ethernet-communication/50072>\
**Category:** Industrial\
**Created:** [23 August 2021 16:28 UTC](https://discourse.nodered.org/t/mitsubishi-ethernet-communication/50072 "2021-08-23T16:28:46Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [23 August 2021 21:15 UTC](https://discourse.nodered.org/t/mitsubishi-ethernet-communication/50072/4 "2021-08-23T21:15:56Z")

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> [@Hector-Duran](#):
>
> Unfortunately I can't see what has the CNC. I have some documentation from the manufacturer of the machine, saying the IP (I confirm it is with the ping), and the tag name list I shared, which I can see it from Kepware.

Can you show me the settings in KEPWARE of the PLC object and the parent object (need to see port numbers and network numbers used etc)  
NOTE: this will show us an already existing connection & we shouldnt use the same port - but it may give us some clues.

Also, do you know the PLC model? Q series? A Series? QnA series? iQR series?

Ideally, you would connect to the PLC using GX-Programmer or GX-Works to determine the PLC settings - do you have these?

If not, you could cross your fingers and hope the integrator opened some UDP (or TCP) ports on the PLC. You can scan with a port scanner (nmap can scan UDP and TCP)

e.g: find open UDP ports...

```auto
nmap -sUV -T4 -p1000-5012 --version-intensity 0 192.168.0.253

```

e.g: find open TCP ports...

```auto
nmap -sSV -T4 -p1000-5012 192.168.0.253

```

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