KB1419 - Troubleshooting FT-10 Networks

 Problem

How to troubleshoot FT-10 networks

 Solution

Troubleshooting Suggestions:

1. FT-10 channels are half duplex, so devices have to wait for other devices to stop sending messages before it can send its own message.

• Recommend keeping sustained traffic below 40 percent to allow important datapoint messages to be sent when needed.

2. Use LonScanner 5 Protocol Analzer to verify network traffic (free download)

• Allows you to check bandwidth and verify connectivity between devices

• CRC error rate should be below 4%

3. Make sure the FT-10 channel is properly terminated

• Free-topology - single terminator typically placed near the network interface or router.

• Bus topology - 2 terminators, one at each end of the bus.

4.Look at the Troubleshooting LonWorks Devices and Twisted Pair Networks

 Related Products

• FT-10 channel

• LonScanner