RPI4 with CH341

2020-02-27T16:59:22.286000Z

Hi, I've changed the simulator and this works
Thanks for the answers.

RPI4 with CH341

2020-02-27T16:59:21.342000Z

Hi and thanks Edwin for the kindness in answering me,
now without the symbol; I managed to do what you see in the attached image, but values that are indecipherable appear, if I change a value, something happens in the registers but the indecipherable values change.
Thank you for your kindness

RPI4 with CH341

2020-02-27T16:59:18.536000Z

Hello,
Without ; as you see in the attachment, it remains with the red triangle, it connects only if I put it and it becomes a green triangle

RPI4 with CH341

2020-02-27T16:59:17.588000Z

Hi,
you need to change the baudrate here:

remove the ';' infront of: Linux.Devicefile=/dev/ttyUSB
BR
Edwin

RPI4 with CH341

2020-02-27T16:59:16.660000Z

Hi Edwin and thanks for the help,
in the attached file I see that the baudrate is set to 115200, on all the examples the tests are with 9600, do I have to change the speed on the file?
Do you think the screen I have attached to you is correct and do I have to set the slaves to 115200?
I ask because I made a thousand changes on the slave and also on the software to try communication from the PC but does not want to leave and honestly I do not know what else to try.

RPI4 with CH341

2020-02-27T16:59:14.049000Z

Hi,
you just need:
in /etc/CODESYSControl_User.cfg

[SysCom]
Linux.Devicefile=/dev/ttyUSB

nothing else... if this section is in /etc/CODESYSControl.cfg this will be lost on every runtime update... so the correct place to have is /etc/CODESYSControl_User.cfg.

According the watch window.
"Undefined" means there is no real or proper response from the slave..!

BR
Edwin

RPI4 with CH341

2020-02-27T16:59:13.120000Z

Hi Edwin, I thank you for your kindness in answering me,
I have attached to you what happens in the WATCH table, but I ask you, these lines:

[SysCom]
Linux.Devicefile = / dev / ttyUSB
portnum: = COM.SysCom.SYS_COMPORT1;

I have to add them up
sudo nano /etc/CODESYSControl.cfg
or
sudo nano /etc/CODESYSControl_User.cfg
I have to put it
portnum: = COM.SysCom.SYS_COMPORT1;
on CODESYSControl_User.cfg and not on CODESYSControl.cfg
and the speed that I find on etc / CODESYSControl_User.cfg I have to leave to 115200 even if in the forum they speak of 9600?
I ask you all these questions because I have now moved them but the communication does not start.
I state that sending a string from Hercules with Putty the string is received so it must be a problem in the settings.
Thanks for your kindness.

RPI4 with CH341

2020-02-27T16:59:10.490000Z

Hi,
setting is ok,
and from first screenshot I would say comports works.
I would suggest to add the name of the serial modbus device to a watch window to have more information what happens...
(add Modbus_Slave_Com_port to the watch window and undfold it to see more infommation/diag there)
BR
Edwin

RPI4 with CH341

2020-02-27T16:59:09.537000Z

Hello and thanks for the reply,
I tried without spaces but still nothing, I tried to modify sudo nano /etc/CODESYSControl_User.cfg as in the attached file putting ttyUSB instead of ttyS and adding
portname: = COM.SysCom.SYS_COMPORT1
but still nothing, I have to maybe sudo nano /etc/CODESYSControl.cfg?
I also set the speed to 115200 by default.
I have to put ttyUSB in sudo nano /CODESYSControl_User.cfg
so without etc?
If someone kindly helps me or maybe Edwin can help me?
Thanks

RPI4 with CH341

2020-02-27T16:59:06.908000Z

Hi,

without these spaces it might work ( and it should be 3.5SP15 at least ->version)
[SysCom]Linux.Devicefile=/dev/ttyUSB

BR
Edwin

Recent posts to RPI4 with CH341

RPI4 with CH341

RPI4 with CH341

RPI4 with CH341

RPI4 with CH341

RPI4 with CH341

RPI4 with CH341

RPI4 with CH341

RPI4 with CH341

RPI4 with CH341

RPI4 with CH341