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**Describe the bug**
When using the RTU06 example on a olimex-esp32-poe + mod RS-485 with RTUserver example on a olimex-esp32-poe + mod RS-485 the server was unable to get the answer from the client.…
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First of all, sorry for my English.
I always get an error when try to use that function. What can I do? Every call I do (modbus_rtu_set_serial_mode(ctx, MODBUS_RTU_RS485 (or RS232)) returns -1. Bad …
ghost updated
2 years ago
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### The problem
I have been running home assistant for many years and a similar modbus configuration the whole time, made some minor changes this summer when the modbus module configuration syntax …
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Hi there,
I'm using a MAX485 transceiver chip, which provides halfduplex RS485 commnication. I modfied your code to set up the serial interface in a way to control the RTS pin. I'm testing it recen…
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## Environment:
- Development Kit: none
- Module or chip used: ESP32-WROOM-32U
- IDF version: v4.4
- Build System: idf.py
- Compiler version: xtensa-esp32-elf-gcc (crosstool-NG esp-2021r2) 8.4.0
…
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### The problem
My modbus configuration stopped working since upgrade from 2021.3.4 to 2021.7.4.
I've also installed dev version 2021.8.0.dev20210725 but the results was the same - all of sensors …
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I am building a modbus proxy using this library as the base. The proxy speaks modbus TLS on one interface and normal Modbus TCP on a second interface. The purpose is to add TLS capabilities to devic…
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Hardware:
Arduino Mega 2560, W5500 lite, 1 RTU Slave 0x01
Modbus Mode : Modbus TCP/UDP
Modbus Master TCP/502, query interval 120s ,timeout 5s
The connection to the web interface TCP/80 also br…
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### The problem
I have a problem with Modbus switch: it doesn't update state when corresponding coil was changed his state.
Tried both lights and switch
I use
https://github.com/yaacov/Arduin…
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Hi aldas,
I'm a newbie for PLC. I have try modbus-tcp-lient and it sucess get the data. But i don't know how to read the data.
I want read the temperature of chiller. i have read the document of mod…