Ошибки связи с MAP12H

Добрый день.

Постоянно в логах общения с MAP12H валят ошибки связи:

wb-mqtt-serial
Oct 21 11:35:51 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 2 input(s) @ 104 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:52 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 2 input(s) @ 104 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:53 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 1 input(s) @ 121 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:53 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 6 input(s) @ 8962 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:54 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 2 input(s) @ 104 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:54 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 3 input(s) @ 12537 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:56 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 2 input(s) @ 17154 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:56 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 1 input(s) @ 16633 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:57 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 8 input(s) @ 4864 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:35:58 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 2 input(s) @ 104 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:36:00 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 2 input(s) @ 104 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:36:00 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 6 input(s) @ 13058 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:36:01 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 1 input(s) @ 16633 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:36:01 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 6 input(s) @ 8962 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:36:03 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 6 input(s) @ 13058 of device modbus:100: Serial protocol error: request timed out
Oct 21 11:36:04 wirenboard wb-mqtt-serial[3683]: WARNING: [modbus] failed to read 3 input(s) @ 12537 of device modbus:100: Serial protocol error: request timed out

Прошивка устройства:

wb-mcu-fw-updater
2021-10-12 08:57:19,235 Will find serial port settings for (/dev/ttyRS485-1 : 100)...
2021-10-12 08:57:21,351 Has found serial port settings: {'stopbits': 2, 'parity': 'N', 'baudrate': 115200}
2021-10-12 08:57:22,265 Firmware is already the newest version (2.3.2), will not update. Use -f to force.
2021-10-12 08:57:22,270 Done

Конфиг: wb-mqtt-serial.conf (36.0 КБ)

Четность, стоп биты и скорость установлены правильно.
Устройство точно не перезагружается постоянно: “Uptime: 764330”
Напряжение Supply voltage: ~4.2. Напряжение на входе в модуль от блока питания - 25.15.

Физическое подключение проверял - вроде все в порядке

Добрый день. Cчетчик не один на шине. Попробуйте уменьшить скорость вдвое?

Уменьшил скорость на всех устройствах и изменил значение в конфиге на 57600

Количество ошибок уменьшилось, но не исчезло полностью:

Логи
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:21 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:89 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:236 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:39 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:92 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:169 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:14 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:27 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:211 is connected
Oct 21 12:58:35 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:35 is connected
Oct 21 12:58:36 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:13 is connected
Oct 21 12:58:36 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:175 is connected
Oct 21 12:58:36 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:210 is connected
Oct 21 12:58:36 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:35 is connected
Oct 21 12:58:36 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:173 is connected
Oct 21 12:58:36 wirenboard wb-mqtt-serial[2644]: INFO: [serial client] device modbus:100 is connected
Oct 21 12:58:55 wirenboard wb-mqtt-serial[2644]: WARNING: [modbus] failed to read 1 coil(s) @ 0 of device modbus:89: Serial protocol error: request timed out
Oct 21 12:59:34 wirenboard wb-mqtt-serial[2644]: WARNING: [modbus] failed to read 2 input(s) @ 104 of device modbus:100: Serial protocol error: request timed out
Oct 21 12:59:49 wirenboard wb-mqtt-serial[2644]: WARNING: [modbus] failed to read 2 input(s) @ 104 of device modbus:100: Serial protocol error: request timed out
Oct 21 13:00:11 wirenboard wb-mqtt-serial[2644]: WARNING: [modbus] failed to read 2 input(s) @ 104 of device modbus:100: Serial protocol error: request timed out
Oct 21 13:00:21 wirenboard wb-mqtt-serial[2644]: WARNING: [modbus] failed to read 8 input(s) @ 4864 of device modbus:100: Serial protocol error: request timed out
Oct 21 13:00:55 wirenboard wb-mqtt-serial[2644]: WARNING: [modbus] failed to read 8 input(s) @ 4864 of device modbus:100: Serial protocol error: request timed out

Что можно попробовать сделать, чтоб вернуть скорость на 115200?

Тут, скорее, что-то с физикой. Подключите устройство просто
отдельным кабелем (одно) для теста.