SLC 5/05 Remote I/O

bradal · Nov 28, 2007

Hello All,

Hopefully you can help me with an upcoming project. Right now there is an existing 5/03 on site in the "Filter" control panel. I will be installing a new control panel with a 5/05 and installing the 1747-SN, the 5/03 in the Filter control panel will be swapped out with the 1747-ASB. So that takes care of the local I/O in the plant, but I have a small lift station next to the Plant that I need to get a couple digital points from. What does Allen-Bradley offer for remote ethernet I/O, and what experiences have you had with them? Would I be better off going with 3rd party I/O-communication blocks to transfer the I/O over the air. Regardless of which way I go I would have wireless communication to this liftstation. Any help would be appreciated.

mgvol · Nov 28, 2007

You won't be able to control I/O over ethernet using a SLC 5/05 or with any type of ethernet adapter. The ethernet on SLC's, MicroLogix1100's and PLC-5's is for peer-to-peer communications. To control I/O over ethernet you have to move into one of the ControLogix platforms (ControLogix, CompactLogix, FlexLogix).

curlyandshemp · Nov 28, 2007

bradal said:
Hello All,

Hopefully you can help me with an upcoming project. Right now there is an existing 5/03 on site in the "Filter" control panel. I will be installing a new control panel with a 5/05 and installing the 1747-SN, the 5/03 in the Filter control panel will be swapped out with the 1747-ASB. So that takes care of the local I/O in the plant, but I have a small lift station next to the Plant that I need to get a couple digital points from. What does Allen-Bradley offer for remote ethernet I/O, and what experiences have you had with them? Would I be better off going with 3rd party I/O-communication blocks to transfer the I/O over the air. Regardless of which way I go I would have wireless communication to this liftstation. Any help would be appreciated.

I beleive there is no Ethernet I/P I/O available for the SLC 5/05 family. The etherent is for messaging only.

You may want to consider Compactblock I/O for the remote location using RIO.

kolyur · Nov 28, 2007

You may want to investigate the Ethernet I/P module from Prosoft:
http://www.prosoft-technology.com/content/view/full/399

It plugs into the SLC rack. I haven't used it but it should let you interface to any I/O system that supports Ethernet IP. I'm sure it's very pricey, so you may be better off finding a way to run an RIO line.

kamenges · Nov 28, 2007

From what I can tell the Prosoft module only supports explicit messaging so it won't work with I/O.

Keith

(8{)} ( .) · Nov 29, 2007

Without knowing the kind of I/O you need I'd look at a microLogix
1100. Has a built in ethernet port so you can talk to the SLC.
It'll probably be more cost effective as well. You can decide
if you want the micro to emulate remote I/O over ethernet or
if you want it to do the lift-station logic.

Good luck

(8{)}

.)

(Yosi)

JesperMP · Nov 29, 2007

bradal said:
Would I be better off going with 3rd party I/O-communication blocks to transfer the I/O over the air.

Asking like that tells us that it isnt absolutely necessary to go wifi. So dont !
Just get some flexible drag-chain grade RIO cable, put a RIO block in the lift and be done with it.

kolyur · Nov 29, 2007

(8{)} ( .) said:
Without knowing the kind of I/O you need I'd look at a microLogix
1100. Has a built in ethernet port so you can talk to the SLC.
It'll probably be more cost effective as well. You can decide
if you want the micro to emulate remote I/O over ethernet or
if you want it to do the lift-station logic.

That's an interesting idea. I've used the Micrologix 1100 with Ethernet on a number of occasions and it's a great little unit. The ladder program could just consist of a few MSG instructions to make it work like remote I/O. The only potential problem could be I/O update speed since the Ethernet connection won't be as fast as a dedicated RIO line.

SLC 5/05 Remote I/O

bradal

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kolyur

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kamenges

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(8{)} ( .)

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JesperMP

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kolyur

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