# PLC protocol change over 4RF ethernet radio

**URL:** <https://forum.inductiveautomation.com/t/plc-protocol-change-over-4rf-ethernet-radio/16613>\
**Category:** Ignition\
**Created:** [January 16, 2018, 6:42pm UTC](https://forum.inductiveautomation.com/t/plc-protocol-change-over-4rf-ethernet-radio/16613 "2018-01-16T18:42:22Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [January 16, 2018, 6:45pm UTC](https://forum.inductiveautomation.com/t/plc-protocol-change-over-4rf-ethernet-radio/16613/2 "2018-01-16T18:45:29Z")

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Disclaimer: I am not a PLC guy, at all.  
But I think the discussion here might help you out?

> [@PCCC protocol causing problems](http://forum.inductiveautomation.com/t/pccc-protocol-causing-problems/11651):
>
> Ignition Version 7.8.2 Java™ SE Runtime Environment (build 1.8.0\_92-b14) Java HotSpot™ 64-Bit Server VM (build 25.92-b14, mixed mode) OS : Ubuntu 14.04 Is there a way yet to stop a protocol from being used? I have an issue where remote equipment (ML1400) will loose connection because any number of accidental or purposeful reasons. The problem then becomes that Ignition will try the PCCC protocol and if the timing is right (often is) when the equipment comes back on it will connect to it usi…

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