RMA
Member
I'm sitting here in an office at the customer's factory - all alone, everybody else is out on site - and I want to do some testing, but the Ethernet link to the PC, which was fine two weeks ago, doesn't work any more.
I'm using my own PC, which the customer IT guy set up so that I can run on their Intranet, to which the PLC is also connected. The funny thing is that I can ping the PLC OK, (possibly more to the point, when I switch the PLC off the ping fails), but even the backup copy of the program from Sep. 12th, when I know from my work log I was testing online, doesn't work anymore. The command to show all users turns up no other users.
The windows firewall is switched off, the PG/PC interface is set to TCP/IP(Auto) NVIDIA nForce Networking and I'm running out of ideas!
Since I'm not that well up on network stuff, here's the network setup:
The PLC IP address is 191.168.94.190 (and as I said, I can ping it)
On the development PC ipconfig returns the following:
IP address: 191.168.92.30
Subnet mask: 255.255.252.0
Standard gateway: 191.168.94.254
The one thing I can't be sure of is whether or not the IT guys have modified anything in my absence, so the first question is, does the above look like it ought to work?
Apart from that, any other ideas of where to look would be most welcome, otherwise I'm not going to get a lot more done this week!
I'm using my own PC, which the customer IT guy set up so that I can run on their Intranet, to which the PLC is also connected. The funny thing is that I can ping the PLC OK, (possibly more to the point, when I switch the PLC off the ping fails), but even the backup copy of the program from Sep. 12th, when I know from my work log I was testing online, doesn't work anymore. The command to show all users turns up no other users.
The windows firewall is switched off, the PG/PC interface is set to TCP/IP(Auto) NVIDIA nForce Networking and I'm running out of ideas!
Since I'm not that well up on network stuff, here's the network setup:
The PLC IP address is 191.168.94.190 (and as I said, I can ping it)
On the development PC ipconfig returns the following:
IP address: 191.168.92.30
Subnet mask: 255.255.252.0
Standard gateway: 191.168.94.254
The one thing I can't be sure of is whether or not the IT guys have modified anything in my absence, so the first question is, does the above look like it ought to work?
Apart from that, any other ideas of where to look would be most welcome, otherwise I'm not going to get a lot more done this week!
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