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View Full Version : ARCnet 156 over Ethernet/IP without a LGR


xarralu
03-07-2010, 07:53 PM
Anyone been able to do this without too much headache?

We have a few buildings that have one module in them and would like to have connectivity to the (remote) server.

Its hard for the building owners to swallow the cost of a LGR especially when we tell them the cost and the usual response is "that's almost the cost of the original install all together!"

Thanks in advance!
MaxBurn
03-07-2010, 10:12 PM
What are the modules in question?

If they are dual mode exec6/b modules I have sometimes wondered if you could jumper those to 485 legacy CMnet at 38.4/9600 and just use some sort of converter to do this.

Doesn't really work if they are anything newer execB only.
xarralu
03-07-2010, 10:23 PM
What are the modules in question?

If they are dual mode exec6/b modules I have sometimes wondered if you could jumper those to 485 legacy CMnet at 38.4/9600 and just use some sort of converter to do this.

Doesn't really work if they are anything newer execB only.

They are all ZN's.

I've tried that with a couple of LANtronix devices but have not had much luck with it. I can get other 485 devices to work with it just not ALC stuff (they probably did this on purpose!).

Thanks for the reply!
control_8
03-07-2010, 10:25 PM
What are the modules in question?

If they are dual mode exec6/b modules I have sometimes wondered if you could jumper those to 485 legacy CMnet at 38.4/9600 and just use some sort of converter to do this.

Doesn't really work if they are anything newer execB only.

If I'm understanding you correctly...you can.

If it is an Exec.B module, flip the jumper to "Legacy" or "MS/TP" (depending on the silkscreen). Then she's talking MS/TP at the speed of your baud rate jumper.

Then you can use any third party device to get it to IP easily. Or if you want to stick with ALC (BACnet/ARC156), you could find an LGE...
control_8
03-07-2010, 10:36 PM
They are all ZN's.

I've tried that with a couple of LANtronix devices but have not had much luck with it. I can get other 485 devices to work with it just not ALC stuff (they probably did this on purpose!).

Thanks for the reply!

You may have to switch your network point types...instead of BNI/ANI/BNO/ANO, use the BACnet BV's and AV's. I have done this and it works as advertised. Keep in mind that you have to drill down to the network point detail and notice that WebCTRL automatically puts "_program#" at the end of each BACnet point. So if there is just one program loaded, the point will have "_1" at the end of the name...
xarralu
03-07-2010, 10:40 PM
If I'm understanding you correctly...you can.

If it is an Exec.B module, flip the jumper to "Legacy" or "MS/TP" (depending on the silkscreen). Then she's talking MS/TP at the speed of your baud rate jumper.

Then you can use any third party device to get it to IP easily. Or if you want to stick with ALC (BACnet/ARC156), you could find an LGE...

Yea we have thought about using a LGE but I didn't know if anyone had any luck with anything else.
Manometer
03-08-2010, 03:36 PM
An LGE is within $20.00 of the cost of an LGR.
MaxBurn
03-08-2010, 03:47 PM
Wow, really? What were they thinking on that? Devices are worlds different, I suspect they are pushing you to go with the new stuff.

BTW what kind of money are we talking about here, I am out of touch in that arena.
Manometer
03-08-2010, 05:40 PM
Wow, really? What were they thinking on that? Devices are worlds different, I suspect they are pushing you to go with the new stuff.

BTW what kind of money are we talking about here, I am out of touch in that arena.

LIST PRICING is in and around 1500 for either. The only reason you would want to use an LGE over an LGR is it's physical size will fit in place of the Legacy gateways, whereas the LGR is physically much bigger.
scrooloose
03-08-2010, 07:29 PM
No driver yet for Arcnet 156 going straight to a jace?
control_8
03-08-2010, 08:23 PM
No driver yet for Arcnet 156 going straight to a jace?

You would need more than a driver...it would also need to talk @ 156 kbps, so you might need a different EIA-485 chip (different electronics) inside the JACE for it to talk on the ARC156 network...

I'm thinking the way to go on this one (from a cost perspective) is flipping the dipswitches to Legacy (MS/TP) and going with a third party router/device...
kontrolphreak
03-08-2010, 09:26 PM
Maybe:

http://www.ccontrols.com/arccontrol/aisrvr.htm

Haven't used it but it might work for your application.

kontrol out
xarralu
03-08-2010, 09:38 PM
Maybe:

http://www.ccontrols.com/arccontrol/aisrvr.htm

Haven't used it but it might work for your application.

kontrol out

I have looked at these as well but one costs $1000 and i would need two (it appears)

Thanks for all of the info so far everyone!