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1 answer
201 views

I have been working on multiple projects of Embedded Linux from last 5 years but there is a small problem when I use UART. I am using STM32MP13F with MYIR board. The UART is connected to half duplex ...
2 votes
1 answer
134 views

I am experiencing an issue with a serial port connection on my Seeed Studio reComputer J30 (Jetson Orin Nano Industrial). When I reboot the device, the serial port connection works fine on the first ...
0 votes
0 answers
79 views

I've been trying to connect to the RS485 sensor through various methods for a while now, but it doesn't seem to respond to any of the commands I send. I've used this Python script and several serial ...
Alf's user avatar
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1 vote
1 answer
105 views

Good day, everyone. I'm trying to understand the behavior of Libmodbus library in C. Here is the behavior of the Modbus RTU for the Addressed Slave and Unaddressed Slave. When there's a request for ...
0 votes
2 answers
252 views

I have been trying to communicate with a I-7000 IO module device that supports Modbus. In general I am able to successfully send commands such as writing to a coil or reading a coil but I face one ...
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0 answers
219 views

I am sending RS485 signals from a master (STM32 Nucleo board with a Waveshare - CAN RS485 shield) to a slave (custom PCB). The PCB then responds. I am switching the DE pin in the meantime and I can ...
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0 answers
8 views

I was wondering if the iHSV - RC integrated servo controller would correctly handle multi-turn positions and commands? (Asuming the model has 1000ppr incremental encoders) Anyone with hands-on ...
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0 answers
175 views

I am trying to read sensor data from "Modbus SHT20 Sensor XY-MD02" using "minimalmodbus" library but i am unable to get the readings. I would be grateful if you can help me where ...
0 votes
0 answers
63 views

I am using pocket beagle with debian 10.3th vserion. I just want to know is there is any dtbo file there to start rs485 in pocket beagle? Like; BBB have "BB-UART4-RS485-00A0.dtbo", dtbo for pocket ...
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0 answers
362 views

I am attempting to create a GUI to communicate with a WAGO 3-Phase Power Measurement Module (Item No. 2857-570/024-005) to read measured values and change measurement parameters (referred to as WAGO ...
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0 answers
60 views

I am new to MODBus, but have worked with Profibus/PLC before. I am trying to use C# NModbus package to communicate with two pyrometers using RS485. The system is set up as so: |Computer| -> |RS485 ...
1 vote
1 answer
45 views

There is a keyboard which is connected to PLC controller. The keyboard is sending frames to the controller. Below is the frame send by Keyboard. $ 200103001<000000008000000000000000000009$ 3$ ...
Toxic Me's user avatar
-1 votes
1 answer
178 views

Just got an 485 device, need to send data to run some function. The device's manual says its starting address is 16/17, and the data type is float type. I've tried to read the registers data using ...
LukZeonHo's user avatar
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0 answers
151 views

I am attempting to read input registers from MFM384 (Selec) devices using an RS485 to USB converter with Python (pymodbus). When I read the "Running Hour" and "Total Net kWh" from ...
0 votes
1 answer
102 views

I need to design the board that uses STM32L496RG, is able to do some operations, but if needed it has to be able to have FW updated "remotely". The idea is that the board with the MCU is ...
j.r-va's user avatar
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