Skip to Content

Register Login

Industry Online Support

Technical Forum

Navigation

Profibus connector with led

Created by: Osman_ at: 11/4/2011 10:36 AM (10 Replies)

Rating (5)

Thanks 4

Result pages:: |; 1 | 2; |

11 Entries

Entries per page: 10 | all

11/4/2011 10:36 AM	Rate (0)
Osman_ Bronze Member Joined: 12/11/2009 Last visit: 9/8/2022 Posts: 243 Rating: (4)	I wonder if there is profibus connectors with led for easy diagnostics. Not repeater. I saw something: EPIC® Data PROFIBUS Connectors 90° LED Screw Terminals 3 status LEDs indicate: bus operation, station transmitting, terminating resistor;Simplify status investigation;Visual connection control;Cost saving because of quick installation;Easy to connect But I did not see any leds in product photos. If there is someone who saw such type of product,can you give us some product details? Thanks

Suggestion To thank Quote Answer

11/4/2011 10:47 AM	Rate (0)
Ammy Platinum Member Joined: 4/19/2008 Last visit: 9/3/2024 Posts: 1525 Rating: (159)	Osman_ I wonder if there is profibus connectors with led for easy diagnostics. Not repeater. I saw something: EPIC® Data PROFIBUS Connectors 90° LED Screw Terminals 3 status LEDs indicate: bus operation, station transmitting, terminating resistor;Simplify status investigation;Visual connection control;Cost saving because of quick installation;Easy to connect But I did not see any leds in product photos. If there is someone who saw such type of product,can you give us some product details? Thanks Hi Osman_, I have seen this Profibus Connector in the One of the Automation Exhibition, they displayed this product with application, EPIC® Data PROFIBUS Connectors 90° LED Screw Terminals If you see the following link 3^rd image, on left hand side you will find the white rectangle in which it will show you the LED indication,
	Ammy New for every one.............. “No duty is more urgent than that of returning thanks.” If Problem Solved......! I can't help you privately - please post in the Forums
Suggestion To thank Quote Answer

11/4/2011 10:57 AM	Rate (0)
UMENCHO Diamond Expert Joined: 3/21/2006 Last visit: 11/1/2024 Posts: 10229 Rating: (1181)	Hello, I think the source of that leds is VIPA. As its products: VIPA 972-0DP10, VIPA 972-0DP20, VIPA 972-0DP30... Best regards, Hristo Mihalev
	Last edited by: UMENCHO at: 11/4/2011 10:58 AM
Suggestion To thank Quote Answer

11/4/2011 2:33 PM	Rate (0)
Osman_ Bronze Member Joined: 12/11/2009 Last visit: 9/8/2022 Posts: 243 Rating: (4)	Ammy Yes vipa connectors seems beautiful. Thanks

Suggestion To thank Quote Answer

11/4/2011 6:44 PM	Rate (1)
Navnag Platinum Expert Joined: 11/21/2007 Last visit: 9/25/2024 Posts: 2325 Rating: (308)	Hello Vipa makes Beautiful Profibus connectors ( With LEDs ). We also loved them till we used them in one of our projects. We found out that they can be very unreliable. We had to replace more than 50 connectors within 6 months of commissioning. Never used them again. Navnag
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
Suggestion To thank Quote Answer

11/4/2011 7:56 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 11/12/2024 Posts: 12293 Rating: (2691)	Hello Navnag; Could you explain what kind of trouble these connectors gave you that forced you to replace them? The idea of local diagnostic LEDs on each node is very appealing, especially for initial troubleshooting of the bus. Too bad if the connectorscause more trouble than they correct. Regards, Daniel Chartier

Suggestion To thank Quote Answer

11/5/2011 3:51 AM	Rate (1)
Navnag Platinum Expert Joined: 11/21/2007 Last visit: 9/25/2024 Posts: 2325 Rating: (308)	Hello dchartier We were getting repeated Bus Fault problems which seemed to come and go away on their own. A Possible problem seemed to be with respect to establishing a reliable contact with the profibus cable.The connectors we used were Insulation Piercing contact type. Another reason, could have been that when there are a large no of connectors, with LEDs, they are probably causing loading of the bus as they are drawing their current from the bus. A regular LED draws a current of 20mA ( I have no idea, how much current do these LEDs draw ) so if we have 20 LEDs in Parallel , it would probably draw apprx. 400mA current. From where will this current be fed ? e.g. CPU 315-2DP Data sheets gives the Max Current for MPI Port / DP port as 200mA. We were using more than 20 slaves each in two seperate configurations with this CPU, where we had experienced problems. Whatever may have caused the problem, this was solved on replacing the connectors with Standard Siemens Profibus Connectors 6ES7 972-0BA41-0XA0 / 6ES7 972-0BB41-0XA0. Regards Navnag
	Last edited by: Navnag at: 11/5/2011 4:05 AM Last edited by: Navnag at: 11/5/2011 3:57 AM There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
Suggestion To thank Quote Answer

11/5/2011 9:47 AM	Rate (1)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 11/12/2024 Posts: 3027 Rating: (1057)	Navnag Aregular LED draws a current of 20mA ( I have no idea, how much current do these LEDs draw ) so if we have 20 LEDs in Parallel , it would probably draw apprx. 400mA current. From where will this current be fed ? HelloNavnag the Profichip EasyConnPB Plugs (VIPA and Procentec sell these too, but they simply rebadge the Profichip Plugs as far as I know)need max 30mA fortheir LED supply whichcomes from the 5V supply that is mandatory on eachdevices with Profibus DB9 connector (note that this 5Vhas nothing to do with A and B signal lines, but is also the one that is used for the active termination). Each Plug will as such also draw the max 30mA from the device it is attached (i.e.they are not in parallel on the bus). As the 5V is generated from the devices general 24V supply, it is the ultimatesupply for the LED current (at a lower current though being a higher voltage supply). On the note of them failing: I'm aware of 2 failures with the Profichip Plugs out of a a several hundreds used (e.g.my observednon representitive failure rate is well below 0.5%), but never investigated furtheras to the cause of the failure (and had other non LED Plugs fail too in the past). I suggest you inform your supplier or ideally Profichip directly about you rather high failure rate, as I'm sure they would like to know about it and investigate the cause (and let us know what they find out).
	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 2 thankful Users Ammy H-H

11/5/2011 2:52 PM	Rate (0)
Navnag Platinum Expert Joined: 11/21/2007 Last visit: 9/25/2024 Posts: 2325 Rating: (308)	Dear Fritz Thanks for your valuable inputs. As the plant was already in operation, we did not get time to investigate the problem. Initially, we replaced the nodes giving sporadic Bus faults with Siemens connectors and the Bus Fault Problem disappeared. Later Client asked us to replace all the connectors, whether giving Bus fault or not as they had lost confidance in these connectors. Whatever may have been the reason, we will probably never know. This client will never allow us to use these connectors and we too do not want take the risk of using them again. Regards Navnag
	Last edited by: Navnag at: 11/5/2011 3:18 PM There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
Suggestion To thank Quote Answer

11/5/2011 5:48 PM	Rate (1)
UMENCHO Diamond Expert Joined: 3/21/2006 Last visit: 11/1/2024 Posts: 10229 Rating: (1181)	Hmm, I thought to use VIPA connectors for future. Now I am a little bit confused. But according to my experience I think there had a bad connection in connector and after it was replaced, the connection inside was done in a proper way. Or like acceptable reason might be that connector was defective. Will see. Best regards, Hristo Mihalev

Suggestion To thank Quote Answer

|

Share this page:

Share this page on...

Follow us on