Access a PLC5 over wireless

I am trying to connect to a PLC5E over a wireless connection
using a wireless router and bridge.
Using a standard LAN connection all is fine.
I can ping the bridge from any computer on the LAN ot the wireless.
The PLC5E is connected directly to the bridge.
I can not ping the PLC5E
If I put the PLC5 onto the lan directly I can ping it.
So I am thinking it is a port access problem. Any one done this
type of setup.
Thanks

Have you setup the router to work with your IP addresses and Subnet?

Check this...

Since you're using a router/bridge-make sure that the PLC 5 has it's gateway address defined properly or you'll never see it thru the router/bridge.

does the gateway need to be the bridge or the primary routers
IP

bridge is 192.168.1.20
plc is 192.168.1.19
router is 192.168.1.1

The PLC's default gateway is not necessary unless it is accessing nodes on a remote network (ie, Internet).

Flopro said:

Since you're using a router/bridge-make sure that the PLC 5 has it's gateway address defined properly or you'll never see it thru the router/bridge.

Click to expand...

Your troubleshooting steps indicate that the TCP/IP settings of the PLC, computer, and bridge are correct (your bridge and WAP may have other applicable settings, especially security ones).

1. Check the link indication of the PLC/bridge. You may need a crossover cable.
2. Try connecting another PC to the wireless bridge. Ensure that you can ping it from the other computer. I would also try to access something in the other direction.

You might also look at your settings options in the wireless bridge. There could be MAC filtering or some other kind of security. Your problem probably lies in your bridge (physical or settings) or in your access point (settings), almost certainly not TCP/IP configuration. You need to prove that the bridge works on your network, then get back to the PLC.

Your troubleshooting steps indicate that the TCP/IP settings of the PLC, computer, and bridge are correct (your bridge and WAP may have other applicable settings, especially security ones).

I have a switch in between the bridge and the PLC
Using a local computer pluged into the switch
I can configure both the bridge and the PLC.
From computers on my Lan I can ping the bridge, which has
only the wireless connection to the router. So I know
the router see's the bridge and visa versa.
The routers address is 192.168.1.1
SO I have the bridge IP at 192.168.1.20 with a
gateway of 192.168.1.1, and the PLC is using
192.168.1.19 with a gateway of 192.168.1.1.
The local computer connected to the switch/PLC/Bridge
can Ping the 192.168.1.1 so I know the bridge can
reach the router no problem. It just seems the PLC5E will
not respond to a ping from the bridge, but will respond
from a ping from the computer connected to the switch.



1. Check the link indication of the PLC/bridge. You may need a crossover cable.
2. Try connecting another PC to the wireless bridge. Ensure that you can ping it from the other computer. I would also try to access something in the other direction.
You might also look at your settings options in the wireless bridge. There could be MAC filtering or some other kind of security.
__________________
Nathan Boeger, MCSE
"Design Simplicity Cures Engineered Complexity"
Check out IA's web launched online demo
Enterprise Integration 101

That's still not telling you if the bridge is functioning properly wirelessly.

You want to test a PC wired into the access point connecting to a PC plugged into the wireless bridge. Make sure that there is a wireless leg between them. You can put switches in between, but make sure there isn't a direct wired connection between them.

asterof said:

I have a switch in between the bridge and the PLC
Using a local computer pluged into the switch
I can configure both the bridge and the PLC.
From computers on my Lan I can ping the bridge, which has
only the wireless connection to the router. So I know
the router see's the bridge and visa versa.

Click to expand...

I have a switch in between the bridge and the PLC
Using a local computer pluged into the switch
I can configure both the bridge and the PLC.
From computers on my Lan I can ping the bridge, which has
only the wireless connection to the router. So I know
the router see's the bridge and visa versa.
The routers address is 192.168.1.1
SO I have the bridge IP at 192.168.1.20 with a
gateway of 192.168.1.1, and the PLC is using
192.168.1.19 with a gateway of 192.168.1.1.
The local computer connected to the switch/PLC/Bridge
can Ping the 192.168.1.1 so I know the bridge can
reach the router no problem. It just seems the PLC5E will
not respond to a ping from the bridge, but will respond
from a ping from the computer connected to the switch.

Well the bridge is working because as indicated the only way for the ping to reach the bridge from my lan is wireless. There
is no hardwire from the PLC/Bridge/PC to the Internet
except from the wireless router to the bridge wireless connection.

I understand that you can ping the bridge wirelessly. What we're trying to communicate with something that is wired through the bridge from the wireless end. Again, I recommend using a PC on each end as you have better troubleshooting tools available.

asterof said:

I have a switch in between the bridge and the PLC
Using a local computer pluged into the switch
I can configure both the bridge and the PLC.
From computers on my Lan I can ping the bridge, which has
only the wireless connection to the router. So I know
the router see's the bridge and visa versa.
The routers address is 192.168.1.1
SO I have the bridge IP at 192.168.1.20 with a
gateway of 192.168.1.1, and the PLC is using
192.168.1.19 with a gateway of 192.168.1.1.
The local computer connected to the switch/PLC/Bridge
can Ping the 192.168.1.1 so I know the bridge can
reach the router no problem. It just seems the PLC5E will
not respond to a ping from the bridge, but will respond
from a ping from the computer connected to the switch.

Well the bridge is working because as indicated the only way for the ping to reach the bridge from my lan is wireless. There
is no hardwire from the PLC/Bridge/PC to the Internet
except from the wireless router to the bridge wireless connection.

Click to expand...

Im confused on how to do that

If I put a pc on the wired end, how do you put a PC on the wireless
?
I dont understand what you are asking

here is a graphic of the lay out.
Notice if I got PC1 Lan Route I can reach the PLC
But can not reach the PLC going the wireless route
even tho I can ping the bridge using the wireless route

Let's take the troubleshooting back a step. Plug PC1 directly into the bridge without the switch. If your wireless router has a builtin switch, plug the "PCs" directly. See if PC1 can ping your "PCs" and if your "PCs" can ping PC1.

We're testing whether the bridge is working properly, not that it simply connects to the wireless network.

What exactly is the bridge doing there? It will not route to a gateway on the same subnet, as you seem to be trying to do.

the pc connected directly to the bridge does connect and allow shared files to be accessed on other PC's located on the LAN

The bridge is simply so I can access and program the PLC5E
from a remote location outside the normal lan area but within
reach of the wireless area.

It should be stright forward, but for some reason
the bridge or the PLC5 is not handling the message
When I ping the PLC5 I can see the lights on the
transmitter converter thats connected to the AUI port
on the PLC5E flash, so I think the PLC5 is not responding
Altho connecting it directly to the LAN all is well.

"What exactly is the bridge doing there? It will not route to a gateway on the same subnet, as you seem to be trying to do.
"

thats what the peeps at D-LINK tols me to do with the GW
on the bridge and PLC was to point them to each other.
I also tried 192.168.1.1 as both of there GW's
as you would think it should be
But still no luck