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Black Clips at the rear of cards to connect modules

11/28/2008 10:01 AM	Rate (0)
DaveA Advanced Member Joined: 8/8/2008 Last visit: 12/5/2024 Posts: 78 Rating: (4)	Hi there, Would anybody know the name of / Siemens product number of the small black clips you get with modules to connect them together? The are used at the rear of the card and are like a 'U' shape and usually black in colour. We have misplaced some and need to order some more (if you can that is! ) I would search the net but do not know the exactname for them! Many Thanks. Attachment DSC00017.JPG (278 Downloads)
	Last edited by: DaveA at: 11/28/2008 10:07 AM PLEASE FIND ATTCHED PICTURE, this should make it clear what I am trying to decribe. Thanks. Last edited by: DaveA at: 11/28/2008 10:07 AM
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11/28/2008 11:43 AM	Rate (0)
Aret Posts: 2348 Rating: (265)	Try 6ES7390-0AA00-0AA0
Aret Posts: 2348 Rating: (265)
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11/28/2008 11:47 AM	Rate (0)
umencho Diamond Member Joined: 3/21/2006 Last visit: 3/30/2025 Posts: 10239 Rating: (1183)	Hello 6ES7390-0AA00-0AA0 SIMATIC S7-300, BUS CONNECTOR, Price around 6 EURO. regards

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11/28/2008 1:58 PM	Rate (0)
DaveA Advanced Member Joined: 8/8/2008 Last visit: 12/5/2024 Posts: 78 Rating: (4)	Many Thanks to you both! they called bus connectors and are £5 from the S. Mall.

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11/30/2008 6:53 PM	Rate (0)
Ayman Elotaify Platinum Expert Joined: 5/28/2008 Last visit: 8/31/2025 Posts: 4522 Rating: (843)	Mr. Dave; Hello. I wounder how you have missed back planes?! Any way, let me recommend something to you. First of all I do not know what do you do and how much modules you use in a year but If Iam in your place I won't get more back connectors with 5GBP/each! I will get another module; let's say another DI/DO module, and it will come with its back plane. I will tell you why. If you need to change any module as a spare part, you do not have to change the back plane. Then you will have one back plane / each module you change. If you have a redundant system and In case you are working with RED-BUNDLE, you will not use the backplanes at all, you will use active bus units and then you will have many. As I told you, I do not know what do you do but In case you have an opertunity for using spares or redundancy in I/Os; Do not order this item; Just buy another module. I know it's only 5GBP. But it's a way of thinking!
	Ayman Elotaify
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12/3/2008 2:43 PM	Rate (0)
DaveA Advanced Member Joined: 8/8/2008 Last visit: 12/5/2024 Posts: 78 Rating: (4)	Yes Ayman it is a good way of thinking. The problem is we need the clips as its just for a small test rig and we are not providing the hardware for this system so cannot order redundant I/O etc due to high cost. it is a good way of thinking though I do agree. Thank you!

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