You are not registered yet. Please click here to register!


 
 
plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
 
Try our online PLC Simulator- FREE.  Click here now to try it.

---------->>>>>Get FREE PLC Programming Tips

New Here? Please read this important info!!!


Go Back   PLCS.net - Interactive Q & A > PLCS.net - Interactive Q & A > LIVE PLC Questions And Answers

PLC training tools sale

Reply
 
Thread Tools Display Modes
Old January 24th, 2018, 12:46 PM   #1
lillquist
Member
United States

lillquist is offline
 
Join Date: Dec 2017
Location: Denver
Posts: 6
Connect SLC 5/04 to CompactLogix

We currently have a system with a PLC5, SLC 5/04, and a panelview standard. They are all currently talking DH+.
We are upgrading the PLC5 to CompactLogix L33ER which no longer supports DH+ or DF1. Does anybody have some advice on how best to have the new CompactLogix and SLC 5/04 communicate.

We have looked at the 1761-NET-ENI, but it is discontinued so our client doesn't want to use it.
Considering the RTA NET-ENI replacement, has anyone had experience?

We thought about upgrading the SLC 5/04 to a 5/05 but this is quite expensive and we would then have to change communication to the HMI.

We are also looking at the Prosoft Ethernet to DH+ gateway but this only allows communication to be initiated from the Ethernet side, and both the SLC and CompactLogix have MSG commands. Our plan of action is to move the SLC's messgae command to the CompactLogix, but this introduces potential problems we would like to avoid.

Thanks for any help!

Last edited by lillquist; January 24th, 2018 at 01:37 PM.
  Reply With Quote
Old January 24th, 2018, 01:07 PM   #2
OkiePC
Lifetime Supporting Member
United States

OkiePC is offline
 
OkiePC's Avatar
 
Join Date: Mar 2005
Location: ENE of Nowhere Oklahoma
Posts: 9,521
How far apart are the SLC and Compactlogix?

If within 50 feet, you should be able to use serial DF1 protocol. That is assuming both PLCs have serial ports available. If the distance is greater than 100 feet of cable, I would not try it without some sort of signal converter/booster.

The Digi One IAP should work to get the SLC serial port to work with Ethernet MSG communications, but I have not tried to do that with a Compactlogix as the master.
__________________
It's not all the variables I am most concerned with, it's the undiscovered constants.
  Reply With Quote
Old January 24th, 2018, 01:38 PM   #3
lillquist
Member
United States

lillquist is offline
 
Join Date: Dec 2017
Location: Denver
Posts: 6
They are right on the cusp of 50'. The CompactLogix is a L33ER so it only has Ethernet.
  Reply With Quote
Old January 24th, 2018, 01:44 PM   #4
Ken Roach
Lifetime Supporting Member + Moderator
United States

Ken Roach is offline
 
Ken Roach's Avatar
 
Join Date: Apr 2002
Location: Seattle, WA
Posts: 13,615
Grr. I get irritated when people replace a PLC-5 with a CompactLogix then express dismay that they don't have the legacy communication features they knew they wouldn't have.

The RTA device connected to the SLC-5/04's serial port is your best bet. You'll spend money on engineering time migrating the MSG instructions, but that's the tradeoff for not buying a 1756-L71 and 1756-DHRIO.

Last edited by Ken Roach; January 24th, 2018 at 01:46 PM.
  Reply With Quote
Old January 24th, 2018, 01:46 PM   #5
geniusintraining
Lifetime Supporting Member + Moderator
United States

geniusintraining is offline
 
geniusintraining's Avatar
 
Join Date: Jun 2005
Location: SC
Posts: 5,151
I think Paul's option is the best and cheap but since you dont have serial... does prosoft make a serial card? or you can use a 1769-ASCii card and add it to the L33er. If you are looking to get your complete DH+ network on the Ethernet we sell a gateway that may work for you

https://www.plccable.com/ethernet-ip...r-ethernet-ip/
__________________
www.PLCCable.com PLC Communication Cables, PLC Trainers, Fluke Meters, MicroLogix, ControlLogix, Siemens, Allen Bradley and more... all your automation needs... ((NEW)) After Market 1784-U2DHP Allen Bradley USB to DH+ and Gateways
  Reply With Quote
Old January 24th, 2018, 01:49 PM   #6
Steve Bailey
Lifetime Supporting Member + Moderator
United States

Steve Bailey is online now
 
Steve Bailey's Avatar
 
Join Date: Apr 2002
Location: The boondocks of Western Massachusetts USA
Posts: 6,317
Can the Panelview communicate with the Compact Logix via Ethernet and the SLC serially (DH+ or DF1) simultaneously? Can a script in the Panelview forward the data from the SLC to Compact Logix and from the Compact Logix to the SLC? If the answer to both questions is yes be aware that it will probably take longer to pass data from one PLC to the other than it did using DH+, so take that into consideration as well.
  Reply With Quote
Old January 24th, 2018, 01:55 PM   #7
Ken Roach
Lifetime Supporting Member + Moderator
United States

Ken Roach is offline
 
Ken Roach's Avatar
 
Join Date: Apr 2002
Location: Seattle, WA
Posts: 13,615
Quote:
Can the Panelview communicate with the Compact Logix via Ethernet and the SLC serially (DH+ or DF1)
A PanelView Standard cannot, and a PanelView Plus would have to deal with both the obsolete DH+ module and the very weak scripting engine.

I think the RTA DF1/Ethernet gateway will allow the SLC-5/04 and PV Standard to remain on their own small DH+ network without modification, and will allow the CompactLogix and SLC-5/04 to trade data.

If the PanelView Standard was communicating with both the PLC-5 and the SLC-5/04, you're back to Square One.
  Reply With Quote
Old January 24th, 2018, 02:02 PM   #8
lillquist
Member
United States

lillquist is offline
 
Join Date: Dec 2017
Location: Denver
Posts: 6
The Panelview has no communication to the PLC5. So we are leaving the DH+ intact between the SLC and Panelview to avoid messing with the Panelview.

Quote:
we sell a gateway that may work for you

https://www.plccable.com/ethernet-ip...r-ethernet-ip/
Do you know if that gateway supports bi-directional communication? I only ask because the Prosoft one only supports communication being initiated from the Ethernet side.

Otherwise the RTA gateway is looking like the best bet.
  Reply With Quote
Old January 25th, 2018, 07:31 AM   #9
geniusintraining
Lifetime Supporting Member + Moderator
United States

geniusintraining is offline
 
geniusintraining's Avatar
 
Join Date: Jun 2005
Location: SC
Posts: 5,151
Quote:
Originally Posted by lillquist View Post
Do you know if that gateway supports bi-directional communication? I only ask because the Prosoft one only supports communication being initiated from the Ethernet side.

Otherwise the RTA gateway is looking like the best bet.
I think so but not positive, by the bullet point below I thought yes

"Auto Detect: Default Auto Baud Rate and Auto Polarity detection"

We have a 30 day money back, so there is no risk if you want to give it a try
__________________
www.PLCCable.com PLC Communication Cables, PLC Trainers, Fluke Meters, MicroLogix, ControlLogix, Siemens, Allen Bradley and more... all your automation needs... ((NEW)) After Market 1784-U2DHP Allen Bradley USB to DH+ and Gateways
  Reply With Quote
Reply
Jump to Live PLC Question and Answer Forum

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Topics
Thread Thread Starter Forum Replies Last Post
comms problems between panelview and slc 5/04 LowRange LIVE PLC Questions And Answers 3 June 7th, 2016 10:36 PM
Slc 5/04 talking to PV1400e via DHRIO Johnzo LIVE PLC Questions And Answers 7 February 17th, 2016 10:45 AM
AB DH485, SLC 5/04, AIC+ Comm Failure gnieport LIVE PLC Questions And Answers 2 August 31st, 2011 03:08 PM
Can't connect to AB SLC 5/04 (Fault) TomBrady LIVE PLC Questions And Answers 7 May 26th, 2009 03:03 PM
Send data from a SLC 5/04 to CompactLogix svankley LIVE PLC Questions And Answers 1 November 9th, 2004 03:00 PM


All times are GMT -5. The time now is 07:17 AM.


.