# \#external-mode

**URL:** https://forum.plexim.com/tag/external-mode/679.md

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## [STM32G474 External Mode issue](https://forum.plexim.com/t/stm32g474-external-mode-issue/3039)

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**Author:** [@ldumaslaussi](https://forum.plexim.com/u/ldumaslaussi)\
**Replies:** 5\
**Last updated:** [May 20, 2026, 2:25pm UTC](https://forum.plexim.com/t/stm32g474-external-mode-issue/3039 "2026-05-20T14:25:25Z")

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Good afternoon, I am using an STM32G474VE board to control a synchronous buck converter. My initial goal is to implement an open-loop voltage controller and measure the buck converter’s current and voltage signals. I d…

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## [External Mode Client × Communication error for system 'TPCES exp1/Control':Wrong port or no response from target. OK](https://forum.plexim.com/t/external-mode-client-x-communication-error-for-system-tpces-exp1-control-wrong-port-or-no-response-from-target-ok/2387)

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**Author:** [@cccc1219](https://forum.plexim.com/u/cccc1219)\
**Replies:** 1\
**Last updated:** [July 28, 2025, 7:03pm UTC](https://forum.plexim.com/t/external-mode-client-x-communication-error-for-system-tpces-exp1-control-wrong-port-or-no-response-from-target-ok/2387 "2025-07-28T19:03:46Z")

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When I enable TI’s 28379D, I cannot activate external mode. I don’t know what the problem is.

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## [Error in external mode](https://forum.plexim.com/t/error-in-external-mode/2042)

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**Author:** [@lalal12](https://forum.plexim.com/u/lalal12)\
**Replies:** 4\
**Last updated:** [April 21, 2025, 1:38pm UTC](https://forum.plexim.com/t/error-in-external-mode/2042 "2025-04-21T13:38:38Z")

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Good morning, I’m already using my second Nucleo-G474RE board, and for the second time, after some time, this error starts appearing when I try to use external mode “Communication error for system ‘’: Wrong port or no re…

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## [Is there a way to log data acquired in External Mode?](https://forum.plexim.com/t/is-there-a-way-to-log-data-acquired-in-external-mode/1398)

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**Author:** [@Gabriele\_Lozito](https://forum.plexim.com/u/Gabriele_Lozito)\
**Replies:** 2\
**Last updated:** [September 24, 2024, 6:55am UTC](https://forum.plexim.com/t/is-there-a-way-to-log-data-acquired-in-external-mode/1398 "2024-09-24T06:55:08Z")

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I’m using an STM32 microcontroller to sample some voltages/currents of a power converter and use them in a control loop to generate the desired PWM. Since the application involves a lenghty battery charging/discharging,…

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## [Plecs externel mode data saver](https://forum.plexim.com/t/plecs-externel-mode-data-saver/1309)

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**Author:** [@Dorj.M](https://forum.plexim.com/u/Dorj.M)\
**Replies:** 4\
**Last updated:** [February 22, 2024, 8:15pm UTC](https://forum.plexim.com/t/plecs-externel-mode-data-saver/1309 "2024-02-22T20:15:21Z")

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I am using the external mode. My project is a DC motor control system. I can see my signals on display. But I want to see the whole data stream and what happened initially, such as speed and how many seconds the PI contr…