Ethernet problem

Dear all,

i have some issues with the ethernet connection. The distance is aprrox. 350 meters though i know it does not work more than 100 meters properly, but it is unavoidable.

Main plc processor is 1769-l32e and distributed flex i/o is connected to 1794-aent.

Please guide me a easy and cheap solution.

Cheap and easy would be 4 segments of cable <=100m each and three low budget switches. Don't put anything else on the switches unless you used managed switches since you are using the connection for I/O.

I am a relative novice with ethernet, so there might be some other better method, like a signal booster or something.

paul_36 said:

Dear all,

i have some issues with the ethernet connection. The distance is aprrox. 350 meters though i know it does not work more than 100 meters properly, but it is unavoidable.

Main plc processor is 1769-l32e and distributed flex i/o is connected to 1794-aent.

Please guide me a easy and cheap solution.

Click to expand...

As well as the good advice from OkiePC, another option is to go a Fiber Trunk from end to end. You will need the proper Switch at each end to switch from Fiber to Cat 5/5E/6. There are a number of options including Weidmuller, Stratix, N-Tron etc. This would overcome your distance problem, as well as keeping your speed up.

I have pushed the 100 meter limit for Programming and Data Monitoring. It just isn't a good idea with I/O though. You want your Communications Rock Solid. Despite the higher speed, I am not a big fan of Ethernet for I/O, but that is another discussion.

Stu.......

Thanks.......using 4 switches...but the trouble is to power them up. I got an option from EtherWAN. According to them I need 2 extenders of their make at 2 ends and same cat 5 cable can be used with RJ-11 port to communicate between the Ethernet extenders. While 2 small Ethernet straight cable at either side will solve my purpose. I am kind of skeptic though.

Put two 1783-ETAP1F devices and run fiber
or use two ETAP2F and do fiber ring.

I haven't tried this with the devices you have but if you Google 'ethernet extender' you will find many solutions. This is probably the type of device that EtherWAN are offering. Here is a pair on Amazon:
http://www.amazon.co.uk/Startech-VD...1_5?ie=UTF8&s=computers&qid=1283696407&sr=8-5

Bryan

No need to be difficult just use fiber and 2 fiber to copper converters / switches on each end.

You can use stratix 6000 or 8000 switches or the etap modules listed by contr_conn this is all ab but every vendor has a similar solution.

This will be standard and it is noise immune.