I tried to write a list of values [123,456,555,452,6121] using the write_registers() function of the minimalmodbus library using Python.
The registers start from register id 40184.
I got the error response ' No communication with the instrument (no answer)'.
When I tried reading the values it returned [123, 0, 555, 452, 6121] as the output.
My code:
import minimalmodbus
import serial
import time
instrument = minimalmodbus.Instrument('COM10',1)
instrument.serial.baudrate = 19200
instrument.serial.parity = serial.PARITY_NONE
instrument.serial.bytesize = 8
instrument.serial.stopbits = 1
instrument.serial.timeout = 10
instrument.mode = minimalmodbus.MODE_RTU
instrument.serial.timeout = 0.05
try:
values=[123,456,555,452,6121]
instrument.write_registers(40184, values)
except Exception as e:
print(f"Error: {e}")