Hello Experts:

I need your help,  i try  connect  from  TIA Portal V13  to PLC S7 300  through SCALANCE M874-3 with APN (Access Point Name.

PLC is connected to SCALANCE by ethernet port and my PC is connected to SCALANCE through APN. I confirm communication with ping successfully from PC to SCALANCE.

I configure SCALANCE NAT rules, ports 102, 34964 redirect to PLC.

In the WinCC Project, added the PLC with the same IP assigned to SCALANCE, because Tia Portal there is no direct access to PLC.

When i try to compile it shows me an error because the PLC and Tia Portal they should be in the same segment. What can I do to communicate?.

Please help me.

Thanks.

 hi,

If you can post some photos of your settings, maybe someone can help you identify your problem. It is easy to check the settings if you provide more details in screenshots.

Thanks,

Jay

luisof16

Hello Experts:

I need your help,  i try  connect  from  TIA Portal V13  to PLC S7 300  through SCALANCE M874-3 with APN (Access Point Name.

PLC is connected to SCALANCE by ethernet port and my PC is connected to SCALANCE through APN. I confirm communication with ping successfully from PC to SCALANCE.

I configure SCALANCE NAT rules, ports 102, 34964 redirect to PLC.

In the WinCC Project, added the PLC with the same IP assigned to SCALANCE, because Tia Portal there is no direct access to PLC.

When i try to compile it shows me an error because the PLC and Tia Portal they should be in the same segment. What can I do to communicate?.

Please help me.

Thanks.

Hello Yaya, attach  PDF file with screenshots.

Thanks.

Hello

first of all: Page 3: Why has PLC IP 10.206.126.41? This is external ip of M874, not PLC.

PLC has 192.168.4.116 I think.

What has M874 internal? This ip must be add as "Router" in PLC.

To connect PLC in TIA, please look on this faq
https://support.industry.siemens.com/cs/de/de/view/109754922

Thanks  Pittiplatsch

I configure the Local IP of  SCALANCE as gateway  in my  PLC and  in the TIA PORTAL  configure  local IP on PLC  and  use extended go online  for  specify  IP external(Scalance)  for subnet to find PLC, Go online is succes.

i was development  a basic   HMI and  show 2 PLC tags in screen  but  when download  proyect to Screen,  The screen not connected to PLC,  how to  configure in the screen the External IP(Scalance)  for connection  to PLC.

 I think if my understanding is correct, you need to set the same scalance internal IP as router for HMI configuration as well. And download to HMI. Now scalance acts as router to your PLC and HMI and also you can access remote and also screens can display data from PLC.

Jay

luisof16

Thanks  Pittiplatsch

I configure the Local IP of  SCALANCE as gateway  in my  PLC and  in the TIA PORTAL  configure  local IP on PLC  and  use extended go online  for  specify  IP external(Scalance)  for subnet to find PLC, Go online is succes.

i was development  a basic   HMI and  show 2 PLC tags in screen  but  when download  proyect to Screen,  The screen not connected to PLC,  how to  configure in the screen the External IP(Scalance)  for connection  to PLC.

Hello Jay

My HMI(Wincc Advanced V13)  are in other Network. i need connect HMI  to PLC  by SCALANCE.