Communcating with a SoftPLC emulating S7-416-1-DP

[toont]

Hi all,

We are trying to make a SoftPLC communicate with a server, but can't seem to make it work. A possible cause is the following error we see in Wireshark every few seconds:

206740 1990.105300000 192.168.30.63 192.168.30.134 TCP 60 102→50049 [RST, ACK] Seq=1 Ack=35 Win=0 Len=0

Flag 0x014 (RST, ACK) Reset: set.

The SoftPLC is trying to communicate in port range 49163-65534 but is seems to be blocked on server side. How would you open these TCP ports or configure the PLC to communicate with open ports?

 

[toont]

The solution was to open the Windows Component Services (dcomcnfg.exe) and edit limits for COM Security to allow a user local and remote COM access. Didn't think the application would be using COM

 

[Cody]

SoftPLC is a trademark of SoftPLC Corporation in the USA, and that product's logic most closely resembles an Allen-Bradley PLC. The product you are referring to is not the official SoftPLC, but some other product.

 

[toont]

I am referring to an ABC IT Soft PLC: http://www.products-abcit.de/en-en/Pages/ABC-Soft-PLC.aspx