# MC Protocol Timeout / Not connected

**URL:** <https://discourse.nodered.org/t/mc-protocol-timeout-not-connected/71483>\
**Category:** Industrial\
**Created:** [30 November 2022 02:52 UTC](https://discourse.nodered.org/t/mc-protocol-timeout-not-connected/71483 "2022-11-30T02:52:14Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vikrimg](https://avatars.discourse-cdn.com/v4/letter/v/59ef9b/32.png) [@vikrimg](https://discourse.nodered.org/u/vikrimg)\
**Post date:** [30 November 2022 02:52 UTC](https://discourse.nodered.org/t/mc-protocol-timeout-not-connected/71483/1 "2022-11-30T02:52:14Z")

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I have a project to read a mitsubishi PLC Q03UDE CPU (installed on machine), I'm trying to read using node-red-contrib-mcprotocol ([node-red-contrib-mcprotocol (node) - Node-RED](https://flows.nodered.org/node/node-red-contrib-mcprotocol)) but still the PLC won't even connect to my node-red.

I tried to follow the video from this ([PLC Mitsubishi Q03UDE Dashboard node red |EP03| Setup PLC Node-red - YouTube](https://www.youtube.com/watch?v=hIJzKYcYbQo&list=PL7IKALDayzW7BoQCoAHf9OQI9ujACzHOf&index=3)), exactly the same configuration (except the IP) but still it won't connect.

in TCP mode the nodes says "Not connected", in UDP mode the node says "ready", but when I inject, it says "timeout".

here's the settings in the GX Works 2 software

 ![Screenshot_20221130_092116](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/c/e/ce2afa86f57fb99b3a278be04ce4bae25bc285c4.png)

 ![Screenshot_20221130_092522](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/3/931ce39ce037e9d3af8ddcf5576e06d77ddfe610.png)  
yes the IP is not 192.168 or 172 or 10.  
and the subnet mask and gateway is not in set.  
is it the problem? or I miss something in PLC settings?

and is still don't get the frame settings in plc side (1E, 3E, 4E).

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**Author:** ![kennycandrap](https://avatars.discourse-cdn.com/v4/letter/k/dfb087/32.png) [@kennycandrap](https://discourse.nodered.org/u/kennycandrap)\
**Post date:** [30 December 2022 09:13 UTC](https://discourse.nodered.org/t/mc-protocol-timeout-not-connected/71483/2 "2022-12-30T09:13:05Z")

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I'm having the same issues when trying to implement the tutorial from that video. I haven't found the solution.

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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:** [30 December 2022 09:33 UTC](https://discourse.nodered.org/t/mc-protocol-timeout-not-connected/71483/3 "2022-12-30T09:33:05Z")

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I will try to help you but you will need to supply all information...

1. PLC type
2. Ethernet type (on-board / card type)
3. PLC IP address
4. Screenshot of parameter settings
5. Screenshot of parameter settings -\> open settings
6. Node-red IP address

Also, can the computer where node-red is installed ping the PLC?

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [28 February 2023 09:33 UTC](https://discourse.nodered.org/t/mc-protocol-timeout-not-connected/71483/4 "2023-02-28T09:33:59Z")

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