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Old October 8th, 2002, 01:12 PM   #1
gizmo
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SLC 5/04 and Ethernet

Can I take a SLC 5/04 processor to a HMI(wonderware) via ethernet?

It appears the SLC 5/04 has built-in a DH+ and RS-232 channel.
Can I come out one the built-in channels thru an adapter to get on the ethernet or is there an SLC5/04 ethernet interface module?

Thanks
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Old October 8th, 2002, 01:58 PM   #2
Ron Beaufort
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If you're not using the DH+ connection, a simple answer might be to simply replace the SLC-5/04 with an SLC-5/05. With this latter processor, Ethernet is built in.
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Old October 8th, 2002, 02:16 PM   #3
harryting
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Well, why would you want to? It might be cheaper to buy a DH+ card for the computer and use Data Highway instead. Or, even cheaper to get a null modem cable from Radio Shack and use the Serial Connection.

But if you really want to you can also price out a 1756 (contrologix) gateway type connection. You will need a 1756 rack, Power supply, a 1756 DH+ card, and a 1756 ethernet card. Connect the 5/04 via DH+ to the 1756 DH+ card then run the ethernet to your computer.

Cheers,
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Old October 8th, 2002, 02:37 PM   #4
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System Layout

Control Highway:
We have a Control Logix Processor talking ethernet via 1756-ENBT via switching hub to several Flex I/O Racks(1794-AENT module).

Info Highway:
In the same Control Logix Rack we have another 1756-ENBT module communicating thru switching hub to a Panel View 600 and HMI (wonderware).

I would like to stay on the ethernet platform and "simply" connect this vendor supplied PLC(which is coming with a PanelView 550) to my "Info Highway" via ehternet for the HMI.

I'm considering the following options:
(PLease let me know if any of the following are not valid or which might be the best solution)

1)Upgrade to SLC 5/05
2)Put SLC 5/05 Ladder Logic in Control Logix PLC
3)From SLC 5/04 channel 0 (DF1-Full Duplex) to 1761-NET-ENI to Ethernet Info highway.

Thanks for all the help!
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Old October 8th, 2002, 03:19 PM   #5
Jiri Toman
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1761-NET-ENI

You can use AB's 1761-NET-ENI module. It provides RS-232 DF1 to
Ethernet interface. To use it with Wonderware you can use
RSLinx 2.3 with "Ethernet devices" driver. Data will be served to
Wonderware either via OPC or DDE. This will work for sure.
Wonderware has drivers built in and you may not need RSLinx.
You have to be careful here, even though AB advertizes ENI as using
EtherNet/IP protocol, it really does not! It uses a shell of explicit messaging structures where Encapsulation commands as well as
Item ID's used are sometimes legacy RA proprietary codes. Unless
Wonderware can guarantee their driver specifically for use with ENI
it might not work.
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Old October 8th, 2002, 03:29 PM   #6
craigsimon
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1756-DHRIO

We have a similar setup, but we also have a 1756-DHRIO card in the control logix rack. This allows us to access our DH+ network, any SLC5/04, from our computers. We communicate from Minnesota to Mexico on the WAN ethernet through the control logix to the SLC5/04.

Looks like there are a couple of different ways. You must decide what is cost effective and what is your own "correct way".
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Old October 8th, 2002, 03:56 PM   #7
Eddie Willers
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I'd choose option (3) using a 1761-NET-ENI on Channel 0 of the SLC-5/04 controller to connect to your Information network.

This will only work if your Channel 0 is available to connect to the Net-ENI; if the PanelView is on DH+ then Channel 0 should be available no problem.

If the PanelView is on DF1 or DH485 protocol and needs to connect to Channel 0 of the SLC-5/04, then I would recommend option (1) instead of trying a bridge or multiplexer.
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Old October 9th, 2002, 08:37 AM   #8
gizmo
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Thanks Again,
For all the help.

Have a good day!
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Old October 9th, 2002, 09:37 AM   #9
Tom Jenkins
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I haven't used them, but Pro-Soft and Sixnet and others have gateways that claim to enable tying in to an ethernet network from DH+ or DH-485 ports. These may be worth checking out.
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