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memory date

Created by: Import-User-1 at: 2/28/2009 11:02 PM (1 Replies)

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2/28/2009 11:02 PM	Rate (0)
Import-User-1 Posts: 3609 Rating: (29)	Import of a Technical Question of an User mircea dragu Hello I am a beginner in step 7 programmer and I would to get some answers. 1. I have a programm which use it COMPARE functions a two integers. One is in a areas memory ( for exemple MW352 - memory word 16 bits), end the other is 100. I want to find out what is in this areas memory to make this comparation ? 2.I have adata base (for exemple DB21.DBX0.0 - data base21 byte0 bit0). I want to find out which is the value after atime, true or false ? 3. For exemple for CPU 315-DP I want to find out how many timers, counters, areas memory it has ?
Import-User-1 Posts: 3609 Rating: (29)
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3/1/2009 8:23 AM	Rate (0)
umencho Diamond Member Joined: 3/21/2006 Last visit: 1/14/2025 Posts: 10239 Rating: (1182)	Hello You can find explanations in documentation that automaticly installed together with Step7 installation. Look at Simatic - Documentation - English and open, depending with which program language you are familiar,"Ladder Logic (LAD) for S7-300 and S7-400 Programming" or "STEP 7 - Function Block Diagram for S7-300 and S7-400" or "STEP 7 - Statement List for S7-300 and S7-400". About how to see how many T, C, M, some CPU has already used, Open Options-Refference Data - Display - Assignment. Or if you want to know in advance how many T,C, , you must check in CPU specification. For example: CPU Specifications CPU 315-2 DP Hope this will help you. regards

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