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S7-1200 RS-232 sending problem

Created by: Krzysiek at: 3/31/2010 7:43 PM (4 Replies)

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3/31/2010 7:43 PM	Rate (0)
Krzysiek Posts: 2 Rating: (0)	Hello all I'm new in PLC and trying to send something like that "Hello World!!!<CR><LF>" I connected CM1241 to PC, and i received some junks: "<NUL>~<ENQ>HELLO<NUL><NUL><NUL><NUL><NUL><NUL><NUL>" How to eliminate that signs at beginning and nulls at end of transmission?? And, How can i send the<CR><LF> signs?? Some examples will be veryhelpful.
Krzysiek Posts: 2 Rating: (0)	Last edited by: Krzysiek at: 4/25/2010 8:27 AM Last edited by: Blue Moderator at: 4/1/2010 2:37 PM Last edited by: O_Moderator at: 3/31/2010 9:04 PM link deleted. attachment added Last edited by: Krzysiek at: 3/31/2010 8:28 PM
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4/1/2010 1:23 PM	Rate (0)
Robster Gold Member Joined: 5/28/2008 Last visit: 10/23/2024 Posts: 1343 Rating: (141)	Hi, have a look to this application. There is RS232 Communication used. Flexible Decoding and Processing of Data Matrix Codes with S7-1200 (CE-X27) regards

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4/1/2010 3:29 PM	Rate (0)
Krzysiek Posts: 2 Rating: (0)	Robsterit is greatexamplefor receiving <CR><LF> but i still don't know how to send that signs, I think it is simple but not yet for me,i'm trying to send SMS by AT command module, and I need to add that signs at the end of transmission.
Krzysiek Posts: 2 Rating: (0)
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10/25/2011 4:59 PM	Rate (0)
Kev Advanced Member Joined: 6/29/2006 Last visit: 9/4/2024 Posts: 53 Rating: (1)	Add $R$L to the end of your string So 'Hello world$R$L'
	It's only easy if you know the answer!!! Feel free to thank or rate my posts if you found them useful.
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6/15/2015 5:28 PM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4766 Rating: (122)	New question published by alakhai is split to a separate thread with the subject Send command with Rs232. Best regards Min_Moderator

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