VPN, CX programmer, scada - access via ethernet

[pszczepan 2]

I have a few questions about connection. 1) PLC has IP 172.16.20.220 , Scada PC has IP 172.16.20.127 On the PC with running scada software I can not established connection between CX programmer which is installed on the same PC and PLC - first I have to shut off scada software. I tried different ports number but no success. Scada or CX programmer on the same PC can't have connection and the same moment. Is it possible to make connection simultaneously? 2) I have VPN connection and when I'am connected to the LAN I get IP 172.17.20.x Second octet is different and last octet is dynamic and every connection it is changing. In such a situation how I have to set up routing table to get remote access to PLC from Cx programmer? thanks for clue Pawel

[Harald_Brueck 0]

If the Visualisation would be an OMRON Software, or making communication via CX-Server OPC, the CX-Server would handle the multiple access. If UDP port 9600 is occupied by your Visu-Software, still TCP port 9600 is free for OMRON Software. Choose "Ethernet FINS/TCP" instead of "Ethernet" as Network on your Omron-Software. (Or the other way arround) Regards

[RickyQ 1]

sounds very familiar, im my experience if the ETN is busy responding to a scada node it doesnt like CX-Programmer trying to connect at the same time.

[RickyQ 1]

I think this would be solved by giving the ETN a route. not on the routing table. in the ETN properties (IO TABLE), look for "IP router table", enter a router ip address for the ETN to use as a gateway. The ETN is on 172.16.y.x You are on: 172.17.y.x The ETN needs a router on the same subnet to tell it how to get to your subnet EG, router: 172.16.20.x So, find the routers IP address that is on the same subnet of the ETN and assign it as a gateway: Ip Adress: 0.0.0.0 (this means "any" network) it works on newer ETNs Router's IP Address: 172.16.20.x Or more specifically: Ip Adress: 172.17.x.x / depending on what subnet you are using for this range Router's IP Addres: 172.16.20.x