How to test S7 Pointer in SIEMENS STEP 7 ? | S7-400 | S7-300 | DB Pointer

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In this video , you see how to function test the raw pointer information in STEP 7.In this video we check 2 types of S7 pointers:
1- Opening DB1, form pointer to point byte number 400.The final test is writing FFFF to MW400 and by using pointer offset we write EEEE to MW402.
2-A binary access and an offset is the next example.We load 100 and multiply it by 8 .Then this value is loaded to the AR1 and the address register shows the byte address number 100. While writing DBX[AR1,P#10,5] , you will accessed to DB1.DBX110.5.
Both cases are function tested and many comments are available to make the code sections more readable.
Project Files here:
/ 38158331
Original discussion:
support.indust...
How to test S7 Pointer in SIEMENS STEP 7 ? | S7-400 | S7-300 | DB Pointer | Data Block Pointer | ANY Pointer | S7 pointer tutorial | siemens pointer offset | Zeiger

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8 сен 2024

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Комментарии : 4

@pjak2756 4 года назад

good video as usual. but direct multiplication may be confusing for someone, therefore, it is better to use SLD 3 or SLW 3 command instead of this. you will get pointer format using both ways because SLD 3 and SLW 4 do the same what multiplication by 8 but it does not confuse the user.

@hdhosseini 4 года назад

Thanks for your message.There are similar in concept.This video is intended originally to provide guidance based on the original discussion in SIEMENS forum: support.industry.siemens.com/tf//ww/en/posts/indirect-addressing-using-pointers/238692/?page=0&pageSize=10 The example is quoted (inherited) from this discussion.

@pjak2756 4 года назад

Yes I know. Hamid- would you like to pass on your experience about TIA Portal Openness ?

@hdhosseini 4 года назад

Of Course , stay connected