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PC adapter USB A2 and S7 200 - port 1 its not communicating

Created by: ashishm at: 6/27/2014 10:17 AM (7 Replies)

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8 Entries

6/27/2014 10:17 AM	Rate (0)
ashishm Posts: 186 Rating: (4)	Dear Sir, Is there any problem with specific S7-200 PLC. Like In CPU 224xp port 0 Its communicating but with port 1 its not. secondly In CPU226 its communicating with both port. Thanks
ashishm Posts: 186 Rating: (4)	Last edited by: Narrator1 at: 6/27/2014 8:50 PM Topic split from /tf/WW/en/Posts/108509#top
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6/27/2014 10:14 PM	Rate (0)
Marcjan Diamond Member Joined: 4/22/2010 Last visit: 3/31/2025 Posts: 5697 Rating: (716)	Hello, Not that i know, both ports on the 200 are the same. So if you can connect with 1 port, you should be able to connect to the other. But offcourse the settings for the ports can be different, try other baudrates. It can allso be the case that the 200 program is using the port, then you can only connect if cpu is in stop. Last possibility is that the port is defect. Regards, Marcjan
	Last edited by: Marcjan at: 6/27/2014 11:17 PM Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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This contribution was helpful to 2 thankful Users Saeed Bahadori Madadi

6/28/2014 6:58 AM	Rate (0)
ashishm Posts: 186 Rating: (4)	Dear Sir, 1. Simple two network program is there in PLC and that is for testing. so no program related to free port etc is there. 2. checked system block of uploaded program and baud rate, settings of both port are same. 3. Port is not defective because earlier version PC adapter USB is communicating woth both port. 4. Problem occured in CPU 224XP. with CPU226 it is communicating with both port. Kindly resolve the problem. Thanks
ashishm Posts: 186 Rating: (4)
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5/2/2016 6:41 AM
Ertapu Experienced Member Joined: 1/21/2016 Last visit: 12/30/2025 Posts: 43 Rating: (8)	Hii Mr.ashishm Can you be more specific? Have you tried it to communicate in STOP mode?

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5/2/2016 6:43 AM	Rate (0)
ashishm Posts: 186 Rating: (4)	Dear Sir, Sorry for not updating but problem was already solved. Port was faulty and thus replaced the PLC.
ashishm Posts: 186 Rating: (4)
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5/2/2016 6:48 AM
ANKURGAMIT Silver Member Joined: 10/2/2013 Last visit: 12/10/2025 Posts: 339 Rating: (52)	ashishm 3. Port is not defective because earlier version PC adapter USB is communicating woth both port. 4. Problem occured in CPU 224XP. with CPU226 it is communicating with both port. would you explain little more about this 3.and 4th point. have you defined mod bus protocol in your plc?
	Technology is best when it brings people together,so we are here now :)
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5/2/2016 7:35 AM
Kirtipatel87 Posts: 23 Rating: (6)	ashishm Dear Sir, Is there any problem with specific S7-200 PLC. Like In CPU 224xp port 0 Its communicating but with port 1 its not. secondly In CPU226 its communicating with both port. Thanks Dear ashishm, if you Check your PLC Both Port Working or Not Then First off all Clear Reset Your PLC with Communication Port 0, After Clear Reset PLC in Stop Mode And Check Both Port With S7-200 PLC Software Communication with different bud rates.... Regrad's KIRTI PATEL
Kirtipatel87 Posts: 23 Rating: (6)
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5/2/2016 7:47 AM
Ayman Elotaify Diamond Expert Joined: 5/28/2008 Last visit: 12/29/2025 Posts: 4522 Rating: (843)	Kirtipatel87 ashishm Dear Sir, Is there any problem with specific S7-200 PLC. Like In CPU 224xp port 0 Its communicating but with port 1 its not. secondly In CPU226 its communicating with both port. Thanks Dear ashishm, if you Check your PLC Both Port Working or Not Then First off all Clear Reset Your PLC with Communication Port 0, After Clear Reset PLC in Stop Mode And Check Both Port With S7-200 PLC Software Communication with different bud rates.... Regrad's KIRTI PATEL Dear Patel, Please note that thread starter has told that he already know the reason of his problem. Ports of CPU was defected. ashishm Dear Sir, Sorry for not updating but problem was already solved. Port was faulty and thus replaced the PLC.
	Ayman Elotaify
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