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| 8/29/2012 7:03 AM | |
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Posts: 5 Rating:
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DearMuthukumar For CPUs with intgrated analog I/Os you have to set the channel measuring range from the hardware configuration only, but for the analog modules you have to adjust the signal type from the step7 hardware configuration and to adjust also the channel internal wiring.You have to check sensor signal type (0-20mA, 4-20mA, 0-10V, ...etc ) and according to this you have to set the channel measurement range also in the side of the module. check what is written under the channel in the hardware configuration in picture 3 in the attachments and according to this letter set the channel measurement range. you have one of the following : [A],[B],[C],[D]. For channel measurements setting check picture 4,5. Check the attachements.
AttachmentS7300-Analog.zip (398 Downloads) |
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| 8/29/2012 9:04 AM | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Joined: 5/28/2008 Last visit: 9/9/2024 Posts: 4515 Rating:
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Hello, A part from wiring and configuration differences as per Ahmed Hany post, There is another important difference, which is the rsponse time or let's us call how quick would the module sense changes in the analog signal and tell the CPU about these changes. I can not tell that CPU with integrated I/Os (Compact CPUs) is faster than using the same CPU with Analog module, as it depends on which CPU and which module we are talking about. For example,CPU313C
ForAI (7KF02)
ForAI (7HF02)
So from the above tables, we conclude that:
For many applications, it is not an important parameters specially for process and factory automation. For very quick application like machine automation, it is an important point which should be taken into consideration. Hope this helps. |
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Ayman Elotaify |
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