Skip to Content

Register Login

Industry Online Support

Technical Forum

Navigation

Is there any repeater available without 24 V power supply?

Created by: SEM at: 12/9/2009 9:52 AM (3 Replies)

Rating (0)

Thanks 2

4 Entries

12/9/2009 9:52 AM	Rate (0)
SEM Posts: 12 Rating: (0)	dear Mario, i need one clarification from you, i am using CP 443-5 for simocode communication. But when i exceed 90 simocodes then its not communicating properly. So i am not using more than 80 simocode under one CP 443-5. should i put repeatersafter every32 nodes?. Is there any repeater available without 24 V power supply, Bcos siemens repeaters requires 24V DC power supply. regards, Sem
SEM Posts: 12 Rating: (0)	Last edited by: O_Moderator at: 12/9/2009 10:09 AM new subject after splitting from /tf/WW/en/Posts/27026#top
Suggestion To thank Quote Answer

12/9/2009 4:28 PM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Dear Sem, regarding the use of PROFIBUS repeaters you are absolutely right. You need a PROFIBUS repeater after 31 nodes. If you have a repeater on both ends you may even use only 30 nodes in-between. As you know a PROFIBUS segment may only carry up to 32 nodes... and a PROFIBUS repeater would count her just like a node. Sadly I do not know of a SIMATIC Repeater without a 24 V DC power in interface. Maybe you will find some certified repeaters with the PROFI-User organization (www.profibus.org). Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
Suggestion To thank Quote Answer

12/10/2009 12:08 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 12/3/2024 Posts: 3028 Rating: (1057)	Hello SEM The Profibus Compact Repeater from Systeme Helmholz isthe onethat I know off which doesnot require 24V and may be what you are looking for. Apart from that, please pay heed to J bell's advise and I hope this helps.
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
Suggestion To thank Quote Answer
This contribution was helpful to 1 thankful Users how come

12/10/2009 1:22 PM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Hello fritz, you are absolutely right... butin this casethe 5 V DC supply of the node connected to the plug is indispensible. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
Suggestion To thank Quote Answer
This contribution was helpful to 1 thankful Users fritz

|

Share this page:

Share this page on...

Follow us on