2/14/2010 11:17 AM | |
Joined: 10/7/2005 Last visit: 10/14/2024 Posts: 3024 Rating: (1054)
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Hello Patrikk allow me to quote myself from my previous entry: "Each port of the DP/DP Coupler is a DP Slave, so you must set your S7 to be a DP Master (your IM308B is already a Master)." I hope this helps and urgeyou to have a good read of the DP/DP Couplers manual. |
Cheers |
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2/16/2010 1:10 AM | |
Joined: 10/7/2005 Last visit: 10/14/2024 Posts: 3024 Rating: (1054)
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No botherPatrikk, I do start to wonder though if youread the previously given advise thouroughly enough. Allow me to again quote myself from my previous entry: "You could potentially migrate all devices that exist on the current IM308B based Sinec L2 network over to the new IM308C based one. However, some older Siemens devices (e.g. CS51 card for 6RA24 drive) can only be used on an IM308B but NOT on an IM308C (a GSD file does NOT exist for them), so you will need to check that first." I would not at all be suprised that the above mentioned rules for the CS51 card also apply to yourCS61. Bottom line is: You MUST have aGSD file for the CS61 card if you want to configure it for an IM308C (or S7). I am also confused about your "gameplan" as you seem to be jumping around from one possible solution to another as well as trying to "mix and match"them. The good news is though that you do already have an IM308C so I'd suggest to get back to another piece of earlier advise which was: "If you can (i.e. you have a spare slot in yourS5 CR), I would "simply" add a newIM308C to it and NOT touchthe IM308B." Let's assume you have a spare Slot, my "gameplan" for you would be: 1.) Put the IM308B and associated network back together the way it was. 2.) Do NOT buy a DP/DP Coupler 3.) Add the IM308C to the S5 instead, link the IM308Cto the S7 with its own piece of Profibus cable and use this as your communication link between the S5 and S7. The only decision is nowif you want theIM308C to be a DP Master and the S7 to be a DP slave or vice versa, examplesfor both arebelow: How do you operate an S5 (with IM 308-C) as a DP slave on the PROFIBUS DP when the DP master is an S7-300/400? How do you operate an S7-300/400 as a DP slave on the PROFIBUS DP when the DP master is an S5 (with IM 308-C)? I hope this helps |
Last edited by: fritz at: 2/16/2010 2:26 AMAdded example links Cheers |
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2/23/2010 12:45 PM | |
Joined: 10/7/2005 Last visit: 10/14/2024 Posts: 3024 Rating: (1054)
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Hello Patrikk you can downlaod the USS specification at the link below (it is quite a simple protocol) Specification: Universal Serial Interface Protocol USS Protocol To make the S7 "talk" USS you will need a serial interface card and below is link that describes one example by using the 1SI from the ET200S range for this purpose. What changes do you have to make in the sample program "USS Protocol" in order to operate multiple slaves on the ET 200S 1SI module? Having said the above, if you have multiple Simadyn D's you will either need multiple serial cards or do the comms multiplexing in the S7 software so you might face some programming or hardware effort for this. I'm also unableto tell you if you will need to change the Simadyn D Struc based configurationfor thisto work (simply because of lack of Simadyn D knowledge, but know that your's are currently configured to operate on SINEC L2). Perhaps not a bad idea to revisit the advise that you were given by KSN and miamiin THIS thread before making the decision to go down the USS path. I hope this helps |
Cheers |
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