COMUNICATION GPRS MODEM

[Julio Rodriguez]

Hi 

 

I'm working in a proyect to the Variadores S.A Company in bogota, Colombia.

 

They need communicate the plc with the pc vía GPRS, ussing the program Remote Access and two ENFORA modems.

 

I have two SIM CARDs one for the modem and one for the other. Claro S.A provides me two IP address whit a APN Server; this is a private network.

 

 

In  my program i have:

 

- name of the PLC ---- Visio570.

- Com init ---- i connect my modem in the port #2.

- gprs configuration and gprs registration.   int the grps registration I'm going to set a MI where the program save the ip address (this is the ip address of the MODEM PLC). You also have to set the APN Server.

- IP to ASCII --- With This function Block the OPCL save your IP Address.

-Start Call ----> I configured the remote tcp/ip port   the number 20257 but i'm no sure about that (unitronics have a video with this proyect but in the video the por tcp/ip is 5000) I am confused about that.  I also cofigured the ip addres of the second modem, the second modem is the PC modem.

- end call

-listen mode ---> i configured the port --- 20257.

- end listen mode.

-unregistered.

 

 

I connected the network and inicializated the two modems, one for the PLC side modems and the other for PC side modems.

 

when I turn on the plc and the modems, the plc save the modem ip address and displayed on the screen. when I pressing the button LISTEN, the bit connectect turn on. But the bit Call status neve turn on, when I pressing the button Call , The PLC diplayed the message MODEM TIME OUT ERROR.

 

I have to do I have to do something very similar to the video on youtube with the name WEBINAR-MODEM.

 

Please this proyect is urgent for the company. 

 

THANKS FOR YOUR HELP!!!!!!!!!!!!!!!!!!!

[Eyal Koren]

Hi Julio,

I would like to review the application you created.

Please send your application to support@unitronics.com and I will try to figure it out

[Raymond Santiago]

Could you help me determining the cause of the error when I become connected to PLC using GPRS (with connected on status bar), when I try to online, I get a runtime error of '13' then followed by '440'. Is this software or system related?

this error occur on both visilogic and remote access.

 

Thank you very much in advance.