ElecLab: Raspberry PI With FX3U PLC

Description

I used a 7-inch touch screen for Raspberry Pi to connect to FX3U PLC. It is very convenient to use AWTK GUI to design the UI. The touch screen and PLC have been running for a week. The touch screen can be purchased on Amazon.FX3U PLC is to buy on taobao, the PLC source code is the use of a paid engineering release code, is based on the original stm32f103cet6, I ported it into the at32f403a (240MHz Cortex M4, 224K SRAM). Next I will begin to debug and assemble FX3U PLC, I designed a Cortex M4+1K LUT FPGA Core model use NGFF M.Key package, It can be installed on the shell with 2.19" LCD, but the shell need to CNC.Raspberry pi touchscreen：https://www.amazon.com/Raspberry-Touchscreen-Monitor-Capacitive-Display/dp/B08LVC4KRM/ref=sr_1_5?dchild=1&keywords=FX3U PLC:

Components

Project Logs

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PLC Version 1 works normally
ElecLab • 02/25/2021 at 01:43 • 1 comment

The PCB has soldered the components, burned the FX3U program, downloaded the ladder diagram, and it works fine. The first version works normally.
In the next version, I will add the Efinix T8 FPGA and the 10MHz optocoupler to allow it for motion control.
10MHz isolated optocoupler board is ok
ElecLab • 02/23/2021 at 08:38 • 0 comments

Use the FPGA T8 generate the pulse of 1Hz, 5Hz, 10Hz, 100Hz, 1kHz, 10kHz, 100kHz, 1MHz, 5MHz, 10MHz, The isolation optocoupler board can work normally
Efinix 8K Lut FPGA, M4+8K FPGA is ok
ElecLab • 02/12/2021 at 00:49 • 0 comments

The Efinix T8 micro board I designed has been working normally, I think it should be a super small FPGA core board
I used T8 to generate 10 pulses, 1Hz, 5Hz, 10Hz, 100Hz, 1kHz, 10kHz, 100kHz, 1MHz, 5MHz, 10MHz
I'm using a 10Mbps optocoupler and I want it to be able to output up to 10MHz pulses. It seems that there is a small problem with the first version. The circuit has been changed and I'm ready to make the next board
CPU Board is coming back
ElecLab • 02/06/2021 at 02:50 • 0 comments

CPU Board is coming back, The next step is SMT
New version pcb come back
ElecLab • 02/04/2021 at 13:02 • 0 comments

The newest version of the plc io pcb is comming, i used a 10Mbps optocoupler for all 16x input channel and 16x output channel.

The next plc cpu board version will change to use a M.Key NGFF type core board, the cpu is 240MHz Cortex M4 and connect a 1K Lut FPGA
guide
ElecLab • 02/02/2021 at 13:55 • 0 comments

1. PLC 485 interface A,B signal is resevered with the display screen, open the PLC, exchange the A,B signal on the DB9
2. Configured the FX3U PLC according to Modbus Slave communication setting format
3. Writes AWTK GUI and Modbus communication code
4. Test the screen and plc
After finishing the above 4 steps, after a period of continuous electrical testing, Can initially use this control system for real applications