RaptorX303
Member
Hi,
I am hoping to acquire some help with control system network, specifically communicating with all my devices remotely. The devices I need to reach are on separate subnets, what I want is to be able to reach all of them from a single IP.
My setup is as follows:
-Schneider M251 PLC: This PLC has two Ethernet adapters and each has a unique IP address not on the same subnet.
Eth1- is the programming port, which also handles traffic between the HMI.
192.168.13.100
255.255.255.0
192.168.13.1
Eth2 - is the fieldbus port which handles Modbus TCP IO Scan to VFDs and other devices.
192.168.12.100
255.255.255.0
0.0.0.0
-I have a VFD connected to the Eth2 with an IP of 192.168.12.22
-My gateway device is an 3won VPN router with network settings as follows:
192.168.13.1
255.255.254.0
What I was hoping to achieve using a mask of 255.255.254.0 on the gateway device was to open up both the .12 and .13 networks to the 3won, so that when I VPN to it I can see both the PLC Programming port (192.168.13.100) and the VFD (192.168.12.22)
What is weird is that it kinda works. When I VPN to the 3won I am able to PING the PLC programming port (Eth1) (192.168.13.100) and I am able to PING the PLC Fieldbus port (Eth2) (192.168.12.100). But I cannot PING the VFD (192.168.12.22)
Any ideas why?
There is an article explaining how it can be done using an InHand gateway device instead of an 3won here: http://www.drivesandsystems.com/
(About halfway down the page)
But I was hoping to do it just by manipulating the network settings
I am hoping to acquire some help with control system network, specifically communicating with all my devices remotely. The devices I need to reach are on separate subnets, what I want is to be able to reach all of them from a single IP.
My setup is as follows:
-Schneider M251 PLC: This PLC has two Ethernet adapters and each has a unique IP address not on the same subnet.
Eth1- is the programming port, which also handles traffic between the HMI.
192.168.13.100
255.255.255.0
192.168.13.1
Eth2 - is the fieldbus port which handles Modbus TCP IO Scan to VFDs and other devices.
192.168.12.100
255.255.255.0
0.0.0.0
-I have a VFD connected to the Eth2 with an IP of 192.168.12.22
-My gateway device is an 3won VPN router with network settings as follows:
192.168.13.1
255.255.254.0
What I was hoping to achieve using a mask of 255.255.254.0 on the gateway device was to open up both the .12 and .13 networks to the 3won, so that when I VPN to it I can see both the PLC Programming port (192.168.13.100) and the VFD (192.168.12.22)
What is weird is that it kinda works. When I VPN to the 3won I am able to PING the PLC programming port (Eth1) (192.168.13.100) and I am able to PING the PLC Fieldbus port (Eth2) (192.168.12.100). But I cannot PING the VFD (192.168.12.22)
Any ideas why?
There is an article explaining how it can be done using an InHand gateway device instead of an 3won here: http://www.drivesandsystems.com/
(About halfway down the page)
But I was hoping to do it just by manipulating the network settings
Last edited: