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profibus remote I/O CPU224

Created by: timmermans at: 9/4/2006 10:39 AM (12 Replies)

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9/4/2006 10:39 AM	Rate (0)
timmermans Posts: 66 Rating: (0)	Hello, I am going to use a TP 177micro panel. This panel is connected true a profibus cable to my 224 cpu. Not using theEM227 But can I connect a remote I/O device at this same cable, or doI have to use the EM227 Thanks Timmermans
timmermans Posts: 66 Rating: (0)
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9/4/2006 10:56 AM	Rate (1)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/6/2024 Posts: 8768 Rating: (1170)	Hello ancra, I think you have connected your TP177micro to a port on the CPU224. So this may be port 0 or perhaps port 1. You can use a profibus cable to connect panel and CPU, but this doesn't mean it's a Profibus connection. I think the connection is PPI or MPI, both are RS485, so you can use a Profibus cable. When you want to use remote I/O, you'll have to consider the following: The S7-200 cpu's can not act as a master on a profibus network. So there should be a another profibus master. When you want to connect a S7-200 to profibus you'll need an EM277. Hope this will help. Best regards, Wizard

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9/11/2006 9:37 PM	Rate (0)
timmermans Posts: 66 Rating: (0)	hello Wizard, thanks fot the information. I have got a new idea. Using two CPU's example: CPU 222 , CPU 224 and a TP177micro connected to each other by a profibus (works like MPI)cable in a token (ring) Is is possible to communicate between the two CPU's and the touchpannel. thanks Timmermans
timmermans Posts: 66 Rating: (0)
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9/12/2006 9:00 AM	Rate (0)
Smurf Silver Member Joined: 9/28/2005 Last visit: 10/24/2024 Posts: 414 Rating: (28)	Hi, According to the S7-200 manual it is possible. Please take a look at chapter 7.
	Smurf "The only difference between a problem and a solution is that people understand the solution."
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11/8/2006 8:52 AM	Rate (0)
timmermans Posts: 66 Rating: (0)	Hello everybody Yesterdag I set up a communication between a CPU224 (adres2)and a CPU222 (adres3). The inputs of the CPU222 are send to the the CPU224 working with NETW/NETR Works prefect! The communicate over a profibus cable. On that cable I also connected a TP177micropanel is connected. see also drawing Problem: I cannot connected to my TP177micropanel over the Profi cable. Thanks Timmermans Attachment best.JPG (459 Downloads)
timmermans Posts: 66 Rating: (0)
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11/8/2006 11:40 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/6/2024 Posts: 8768 Rating: (1170)	Hi, What do you mean, you can't connect TP177micro. Is there communication between panel and CPU? You can't programm the panel? Have you seen following faq's: http://support.automation.siemens.com/WW/view/en/5126815 http://support.automation.siemens.com/WW/view/en/41561 Also consider the manual S7-200, chapter 7. Best regards, Wizard

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11/8/2006 12:01 PM	Rate (0)
timmermans Posts: 66 Rating: (0)	Hello wizard I can not connected (find) the pannel when I use wincc and the connection is made the same as like the pictureI included. When I only connected the rs232 cable to the panel, I can connected. And upload my wincc design. I haven't tested the communication between de CPU224 and the TP177. (I think it works whit VW.... tags?) I wan't to program the TP177 whit wincc whitout changing the cables like in the picture I attached thanks Timmermans Attachment best.JPG (516 Downloads)
timmermans Posts: 66 Rating: (0)
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11/8/2006 12:11 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/6/2024 Posts: 8768 Rating: (1170)	Hi, You use RS232/PPI cable multimaster, how are the DIP-switches set? Best regards, Wizard

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11/8/2006 12:47 PM	Rate (0)
timmermans Posts: 66 Rating: (0)	DIP switch 2 and 5 set to 1 When you set dip switch 5 to 1 , the kbaud doesn't mather I think. When I am in Step7 microwin v4.0 SP4the PC finds two CPU's (adres 2 CPU224 and 3 CPU222 both are configured whit 19.2K/baud speed) But when I open wincc i can't connect to the Tp177 micro thanks Timmermans Attachment best.JPG (464 Downloads)
timmermans Posts: 66 Rating: (0)	Last edited by: timmermans at: 11/8/2006 1:03 PM
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11/8/2006 1:43 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/6/2024 Posts: 8768 Rating: (1170)	Hi, Considering the PC/PPI cable: please set the fifth dipswitch to the zero position. And off course the panel is in transfer mode! The PC also has a PPI address, this should be unique! Best regards, Wizard

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