10/22/2011 2:04 PM | |
Joined: 10/7/2005 Last visit: 9/20/2024 Posts: 3021 Rating: (1054)
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Hello azsym to start with, S7 PLC's use the Big Endian format. As for your L MW 0 , T MD 10 question: Your picture is correct for the L MW 0 into accu 1 part. Since MW 0 is only a 16 bit value, it ends up in accu 1 Low (MB0 inbits 8-15, MB1in bits 0-7). If you now do the T MD 10,all 32 bits of accu 1 are copied into it. The overall end result of L MW 0, T MD 10 is: MB0-->MB12 and MB1--> MB13 and attached is a revised version of your pic. As for your question "What the right operation of load and transfer instruction?" I'm not too sure what you would like to know, but perhaps the above has already answered it and I hope it helps. |
Last edited by: fritz at: 10/22/2011 2:05 PMAttachment uploaded Cheers |
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