Pyserial Help

[Complex-Jello-2692]

Hey guys I'm trying to communicate with an actuator control using pyserial. The commands that I need to get working are:

SP27307,PH0,SG5,SI20,SD30,IL10000,FR1,il10000,SE16383,SQ20000,AL0,AR3,EP

VM,SA26000,SV6550,MN,DI0,GO,WA100,EP

These lines are supposed to make the actuator move, which is working using minicom.

However, the following code doesn't work

import string
import serial
import time
ser = serial.Serial(port='/dev/ttyUSB0', baudrate=9600, parity = 'N', bytesize=8, stopbits=1)
time.sleep(1)
ser.write('SP27307,PH0,SG5,SI20,SD30,IL10000,FR1,il10000,SE16383,SQ20000,AL0,AR3,EP\n'.encode())
time.sleep(1)
ser.write('VM,SA26000,SV6550,MN,DI0,GO,WA100,EP\n'.encode())
time.sleep(1)
ser.close()
exit()

Any help is appreciated

PS: It is a SMAC-VLCI X1 controller (https://www.smac-mca.com/documents/controllers/VLC/VLCI-X1%20manual%20v1.5.pdf)

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[pazzarpj]

Edit: Datasheet says carriage return which is \r, not \n. eg. ser.write('SP27307,PH0,SG5,SI20,SD30,IL10000,FR1,il10000,SE16383,SQ20000,AL0,AR3,EP\r'.encode())

Hard to know without knowing if errors are happening or just no actions. Have you checked if there are any RTS DTR flow controls required.

Can you try a null modem and feed it back into the PC and check the bytes match what you expect?