# Communication with Mitsubishi FX3G over USB Cable

**URL:** <https://discourse.nodered.org/t/communication-with-mitsubishi-fx3g-over-usb-cable/33193>\
**Category:** Industrial\
**Created:** [22 September 2020 19:18 UTC](https://discourse.nodered.org/t/communication-with-mitsubishi-fx3g-over-usb-cable/33193 "2020-09-22T19:18:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![machadotiago](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/machadotiago/32/23776_2.png) [@machadotiago](https://discourse.nodered.org/u/machadotiago)\
**Post date:** [22 September 2020 19:18 UTC](https://discourse.nodered.org/t/communication-with-mitsubishi-fx3g-over-usb-cable/33193/1 "2020-09-22T19:18:42Z")

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We have a situation where we need to communicate with a Mitsubishi FX3G PLC, but the problem is that only the USB port of the PLC is available (buying new Mitsubishi modules is out of scope). I couldn't find which protocols are available at the USB port, neither which protocol the GX Software uses to monitor the PLC I/Os states over USB.  
Does anyone knows how we can use the USB port to collect data from this 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:** [21 November 2020 19:18 UTC](https://discourse.nodered.org/t/communication-with-mitsubishi-fx3g-over-usb-cable/33193/2 "2020-11-21T19:18:45Z")

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