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Communication between CPU 317-2 PN/DP and 1214 DC/DC/Rly: transfer an integer

Created by: Kashir at: 9/17/2014 9:13 PM (2 Replies)

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9/17/2014 9:13 PM	Rate (0)
Kashir Bronze Member Joined: 10/24/2012 Last visit: 10/18/2024 Posts: 310 Rating: (21)	Pittiplatsch Hello all, sorry, the answer is not 100% correct. You can establish a PUT/GET between S7-300 and S7-1200 with TIA AND STEP 7 But you can NOT use optimzed data access. Have a look in this faq http://support.automation.siemens.com/WW/view/de/92269951 Dear Expert when i tried to transfer an integar from my S7-300 CPU to S7-1200 CPU i am unable to fetch that at 1200 side. Can you please help me where i am making mistake i am attaching the screenshot of S7-300 OB and DB and S7-1200 DB. Thanks, Attachment Fetching integar.zip (92 Downloads)
	Last edited by: Min_Moderator at: 9/18/2014 11:00 AM New subject after splitting from /tf/WW/en/Posts/113324#top Kashir Saeed. If this information helps you,then you can use the rate function.
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9/24/2014 2:42 PM	Rate (0)
Cicero Gold Member Joined: 10/10/2005 Last visit: 11/27/2024 Posts: 1921 Rating: (136)	Hello, check, whether all variable which use this value in this regards, have the same data type (Int). Example PLC - and data block variables. Also the parameters of the calles blocks (FB and FC). With best regards Cicero

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This contribution was helpful to 1 thankful Users Kashir

9/25/2014 3:44 PM	Rate (0)
Kashir Bronze Member Joined: 10/24/2012 Last visit: 10/18/2024 Posts: 310 Rating: (21)	Dear Cicero, I checked the data types in both CPUs,its the same. Actually when i tried to send an integar using FB 15 addr_1 P#DB2.DBX0.0 BYTE 1 and sd_1 P#DB1.DBX0.0 BYTE 1 when i tried this,it doesnt show anything on the partner CPU. When i add 16 boolean bits with the integar defined in the DB1 and send it to the partner CPU using addr_1 P#DB2.DBX0.0 BYTE 2 and SD_1 P#DB1.DBX0.0 BYTE 2 it reads the integar and the next 14 bits consective to the integar but it didnt read the last 2 bits. Kindly can you clear why it dont read the last 2 bits? Do it use the last 2 bits as flags or something like that or i am making mistake at some point. Thanks.
	Kashir Saeed. If this information helps you,then you can use the rate function.
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