You won’t be able to talk to the PLC and router with that address scheme. 192.168.100.x is on a different network than 192.168.1.1 with the subnet mask you’re using. 255.255.255.0 means that the first 3 numbers must match up to be on the same network. (Don’t try to put them on the same network via changing the subnet masks either - you’re trying to drop the PLC into the existing plant network)
If you want to talk to the PLC set the address to something like:
address: 192.168.100.x, where x is between 3 and 254 (like 192.168.100.3)
subnet mask: 255.255.255.0
The rest won’t matter - you won’t be able to access the Internet
If you want to talk with the router:
address: 192.168.1.x, where x is between 2 and 254 (like 192.168.1.10)
subnet mask: 255.255.255.0
default gateway: 192.168.1.1
DNS: (assigned by ISP). It would work to use any. For example, I remember the UC Davis DNS servers.
169.237.1.250 and 169.237.250.250.
You should be able to access the Internet if the router is configured properly.
Typically, automatically getting IP info from the router (DHCP) will allow you to access the Internet.
If you want to be able to access the PLC and the Internet, do one of the following (I recommend #2):
- Change the PLC address to 192.168.1.90 (from 192.168.100.90)
or - Change the Router’s address to 192.168.100.1. Set the DHCP scope (automatic address range) to something like 192.168.100.50-90. Have the PC autoassign an address. It should work fine.