Modbus master non blocking code

[S_VE]

Hello everyone,

i am looking for Modbus RTU Master non blocking code. can you please guide me.

thanks
S_Ve

[marcin]

Hi.
I am also looking for non-blocking modbus master code. In my hmi panel project, after calling read coil and write another coil, the main loop stops for 2-3 seconds, and that's only two coils. I planned to use more coils and operations on PLC registers, but I'm afraid the program will stop. Please advise what can be done so that the modbus component code does not block the rest of the program.

PIC16F1939_HMI_LASKA LCD_8BIT_LED_NUMBERS.fcfx

(62.7 KiB) Downloaded 22 times

I am attaching the code I am currently testing.
Based on the LED - A0 flashes, I can see how the modbus commands sent to the PLC stop the program.