# Ошибки RS485

**URL:** <https://support.wirenboard.com/t/oshibki-rs485/34597>\
**Category:** Без категории\
**Created:** [February 26, 2026, 6:43pm UTC](https://support.wirenboard.com/t/oshibki-rs485/34597 "2026-02-26T18:43:58Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![DiVAN1](https://avatars.discourse-cdn.com/v2/letter/d/edb3f5/32.png) [@DiVAN1](https://support.wirenboard.com/u/DiVAN1)\
**Post date:** [February 26, 2026, 6:43pm UTC](https://support.wirenboard.com/t/oshibki-rs485/34597/1 "2026-02-26T18:43:58Z")

</div>

А порой и все остальное на шине 485 отваливается.

_приложен диагностический архив, доступен только сотрудникам поддержки_
 (256,3 КБ)

 ![2026-02-26_23-41-54](https://support.wirenboard.com/uploads/default/original/3X/c/8/c8c9287dccd2406f1778eef504e0a8c7fd1d271b.png)

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<div class="post-metadata">

**Author:** ![BrainRoot](https://avatars.discourse-cdn.com/v2/letter/b/c2a13f/32.png) [@BrainRoot](https://support.wirenboard.com/u/BrainRoot)\
**Post date:** [February 27, 2026, 6:32am UTC](https://support.wirenboard.com/t/oshibki-rs485/34597/4 "2026-02-27T06:32:58Z")

</div>

Добрый день.  
Перенес сообщения в отдельную тему, поскольку не имеют отношения к исходной.

Я вижу недопустимое количество ошибок в логе:

```auto
Feb 26 23:36:40 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:40 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:40 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:40 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:40 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:41 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:41 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:41 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:41 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:41 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:41 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet
Feb 26 23:36:41 wirenboard-APQKP5N7 wb-mqtt-serial[1117624]: WARNING: [serial client] Reading events failed: malformed response: invalid packet

```

Расскажите как (чем) выполнена шина RS485, длину сегментов?  
Какие терминаторы установлены?

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<div class="post-metadata">

**Author:** ![DiVAN1](https://avatars.discourse-cdn.com/v2/letter/d/edb3f5/32.png) [@DiVAN1](https://support.wirenboard.com/u/DiVAN1)\
**Post date:** [February 27, 2026, 6:43am UTC](https://support.wirenboard.com/t/oshibki-rs485/34597/5 "2026-02-27T06:43:54Z")

</div>

Все оборудование в одном шкафу, длина шины 2 метра максимум. Терминатора нет. До обновления пару месяцев все работало отлично. Шина выполнена витой парой.

---

<div class="post-metadata">

**Author:** ![BrainRoot](https://avatars.discourse-cdn.com/v2/letter/b/c2a13f/32.png) [@BrainRoot](https://support.wirenboard.com/u/BrainRoot)\
**Post date:** [February 27, 2026, 6:58am UTC](https://support.wirenboard.com/t/oshibki-rs485/34597/6 "2026-02-27T06:58:04Z")

</div>

А чем выполнена и какие терминаторы?  
Рекомендую выполнить проверку так: [Ошибки чтения Modbus - #7 от пользователя BrainRoot](https://support.wirenboard.com/t/oshibki-chteniya-modbus/34177/7)  
Ну и/или проверить уменьшив скорость до 9600.

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<div class="post-metadata">

**Author:** ![DiVAN1](https://avatars.discourse-cdn.com/v2/letter/d/edb3f5/32.png) [@DiVAN1](https://support.wirenboard.com/u/DiVAN1)\
**Post date:** [February 27, 2026, 7:24am UTC](https://support.wirenboard.com/t/oshibki-rs485/34597/7 "2026-02-27T07:24:22Z")

</div>

Терминатора нет. Шина выполнена витой парой без экрана.

Ничего не делал(сегодня не на месте), удаленно читал журналы и … все заработало(только редкие ошибки, что как я понял нормально):

```auto
27-02-2026 12:19:52.116	WARNING: [modbus] failed to read 3 input(s) @ 400 of device modbus:30: Serial protocol error: malformed response: invalid crc
27-02-2026 12:14:34.053	WARNING: [modbus] failed to read 2 input(s) @ 270 of device modbus:229: Serial protocol error: malformed response: invalid crc
27-02-2026 12:12:36.298	WARNING: [modbus] failed to read 2 input(s) @ 270 of device modbus:25: Serial protocol error: request timed out
27-02-2026 12:12:36.166	WARNING: [modbus] failed to read 2 input(s) @ 270 of device modbus:227: Serial protocol error: request timed out
27-02-2026 12:11:49.962	WARNING: [modbus] failed to read 2 input(s) @ 270 of device modbus:29: Serial protocol error: malformed response: invalid data size
27-02-2026 12:11:00.531	WARNING: [modbus] failed to read 2 input(s) @ 270 of device modbus:226: Serial protocol error: malformed response: invalid crc
27-02-2026 12:07:25.756	INFO: [serial client] Events are disabled for <modbus:230: reboot>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:input: 39>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:input: 37>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:input: 36>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:input: 35>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:input: 34>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:input: 33>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:input: 32>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:discrete: 7>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:discrete: 5>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:discrete: 4>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:discrete: 3>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:discrete: 2>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:discrete: 1>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:discrete: 0>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:coil: 5>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:coil: 4>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:coil: 3>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:coil: 2>
27-02-2026 12:07:25.756	INFO: [serial client] Events are enabled for <modbus:230:coil: 1>
27-02-2026 12:07:25.754	INFO: [serial client] Events are enabled for <modbus:230:coil: 0>
27-02-2026 12:07:25.733	INFO: [serial device] device modbus:230 is connected
27-02-2026 12:07:25.730	INFO: [modbus] Init setup register "Use outputs 5 and 6 for curtain 3 control": <modbus:230:holding: 1282><-- 0 (0x0)
27-02-2026 12:07:25.730	INFO: [modbus] Init setup register "Use outputs 3 and 4 for curtain 2 control": <modbus:230:holding: 1281><-- 0 (0x0)
27-02-2026 12:07:25.729	INFO: [modbus] Init setup register "Use outputs 1 and 2 for curtain 1 control": <modbus:230:holding: 1280><-- 0 (0x0)
27-02-2026 12:07:25.725	INFO: [modbus] Init setup register "Baud rate": <modbus:230:holding: 110><-- 1152 (0x480)
27-02-2026 12:07:25.723	INFO: [modbus] Init setup register "Mode": <modbus:230:holding: 16><-- 6 (0x6)
27-02-2026 12:07:25.722	INFO: [modbus] Init setup register "disable legacy input mode control": <modbus:230:holding: 5><-- 0 (0x0)
27-02-2026 12:07:25.716	INFO: [modbus] Continuous read enabled [slave_id is 230]
27-02-2026 12:07:23.475	WARNING: [serial client] Reading events failed: malformed response: invalid packet
27-02-2026 12:07:23.339	WARNING: [serial client] Reading events failed: malformed response: invalid packet
27-02-2026 12:07:23.312	WARNING: [serial client] Reading events failed: malformed response: invalid packet
27-02-2026 12:07:23.285	WARNING: [serial client] Reading events failed: malformed response: invalid packet
27-02-2026 12:07:23.259	WARNING: [serial client] Reading events failed: malformed response: invalid packet
27-02-2026 12:07:23.122	WARNING: [serial client] Reading events failed: malformed response: invalid packet
27-02-2026 12:07:23.096	WARNING: [serial client] Reading events failed: malformed response: invalid packet
27-02-2026 12:07:23.069	WARNING: [serial client] Reading events failed: malformed response: invalid packet

```

---

<div class="post-metadata">

**Author:** ![BrainRoot](https://avatars.discourse-cdn.com/v2/letter/b/c2a13f/32.png) [@BrainRoot](https://support.wirenboard.com/u/BrainRoot)\
**Post date:** [February 27, 2026, 7:53am UTC](https://support.wirenboard.com/t/oshibki-rs485/34597/8 "2026-02-27T07:53:54Z")

</div>

> [@DiVAN1](#):
>
> Ничего не делал(сегодня не на месте), удаленно читал журналы и … все заработало(только редкие ошибки, что как я понял нормально):

Одна-две в минуту - дав, вполне нормально.  
Но выглядит как плохой контакт одного из проводов шины, в общем. Рекомендую все ж терминаторы поставить.