[Lintouch-dev] Open source Modbus gateway - Prosoft 3100 MCM - PLC-5

[Felipe Ledesma]

Hi,

I built the cable myself and I tested it with Modscan 
(www.win-tech.com/html/modscan.htm) with the same setup I mentioned 
already. I also tried connecting with Modscan to a Modbus gateway from 
the same provider (Win-tech) and it worked fine. So, I guess the 
physical layer is OK.

I have tried both COM1 and COM2, and they both give me the same error. 
So, this is why I conclude that there is something wrong when the FREE 
MODBUSC TCP to MODBUS RTU gateway connects to the Prosoft module, since 
I have already tried with other software and it worked. I also tried to 
connect to this software using Modscan from another machine and they 
seem to exchange information. The problem comes when I physically 
connect the Prosoft module to the computer running the gateway.

-Felipe Ledesma


Hynek Petrak wrote:

>Hi Felipe, do you use proper cable? Is the RS232/422/485 set properly on the 
>3100? Is it your COM2 working?
>H.
>
>
>On Friday 10 February 2006 15:54, you wrote:
>  
>
>>Hi guys, I was wondering if any of you have tried the Free MODBUS/TCP to
>>MODBUS/RTU gateway (http://sourceforge.net/projects/mbus). I am trying
>>to use it to connect a PLC-5 through a Prosoft 3100 MCM Modbus Module to
>>Lintouch.
>>
>>I am getting this error:
>>
>># mbusd -d -p /dev/ttyS1
>>1139510793:484899 mbusd-0.1.2 started...
>>1139510793:486158 tty: error in read() (Input/output error)
>>1139510793:492803 mbusd-0.1.2 exited...
>>
>>I know there is no problem with the serial ports. Also,
>>I run mbusd without connecting the Modbus cable and it
>>starts. The second I plug the cable the exit message
>>appears.
>>
>>Any ideas how to solve this? What is happening? Is there any other open
>>source solution that you know I could try instead?
>>
>>Thanks,
>>
>>Felipe Ledesma
>>_______________________________________________
>>Lintouch-dev mailing list
>>Lintouch-dev at lintouch.org
>>https://lintouch.org/mailman/listinfo/lintouch-dev
>>    
>>
>
>  
>