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Connecting multiple OP on AB DF1 protocol

Created by: DolaMam at: 6/23/2012 8:43 AM (3 Replies)

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6/23/2012 8:43 AM	Rate (0)
DolaMam Experienced Member Joined: 6/22/2009 Last visit: 1/28/2025 Posts: 62 Rating: (3)	Dear All, I am trying to push OP177B in place of AB Panelview 550 in an existing AB setup. The CPU is PLC 5/60. But they have 4 Panelviews (for 4 different tasks) on "Remote IO". The DF1 port on CPU is free. Can I connect 4 OPs to the DF1 port by multidrop (RS422) or a DF1 splitter? Can the DF1 protocol on OP side work as Half Duplex? Because half duplex supports master-slave in DF1. Does anybody knows of a DH+ to DF1 protocol converter which is not so costly? Or a converter which has one DH+ port on one side (for CPU) and multiple DF1 port on the other (for the OPs)? Help needed urgently. Thank in advance

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6/25/2012 11:02 AM	Rate (0)
Tweety Posts: 3037 Rating: (192)	Hello, You can find more about connection with Allen Bradley PLC in the following manual. See the chapter 2. See alsopage 28 for the OP177. SIMATIC HMI WinCC flexible 2008 Communication Part 2 Tweety
Tweety Posts: 3037 Rating: (192)	Last edited by: Tweety at: 6/25/2012 11:05 AM
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6/25/2012 11:33 AM	Rate (0)
DolaMam Experienced Member Joined: 6/22/2009 Last visit: 1/28/2025 Posts: 62 Rating: (3)	I have already referred to that manual. My question is has anybody tried with multiple OPs on DF1. Regards

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5/24/2013 8:03 PM	Rate (0)
AEasley Posts: 1 Rating: (0)	Have you checked out the GW1000-DHP1 from Gateway Technologies? It's a DF1 to DH+ protocol converter that just might do the trick for you. Might be getting this to you too late, but if other are looking for a similar solution, more info can be found at: http://www.dhpgateway.com/
AEasley Posts: 1 Rating: (0)
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