7/24/2013 5:29 PM | |
Joined: 1/21/2013 Last visit: 3/19/2024 Posts: 4618 Rating: (705) |
Hi rogabob, In the hardware configuration, you put the values that you need? In the user program you put a value for the exit? L 10000 T PQW Have a look: SIMATIC S7-300 CPU 31xC and CPU 31x: Installation |
Last edited by: Ste39 at: 7/24/2013 5:38 PM |
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7/24/2013 5:35 PM | |
Joined: 9/27/2006 Last visit: 4/20/2024 Posts: 12256 Rating: (2664)
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Hello rogabob; Welcome to the forum. What addresses are you using to interface with the integrated IOs of your CPU 314C-2DP? Have a look at the attached document, and look at the posts by Marcjan in the following discussion: S7300 cpu 314 c2 dp integrated analog I/O configuration Once you have connected through the right addressing, continue reading in the earlier thread about the scaling (analog input)/unscaling (analog output) functions available for reading and writing abnalog signals in these registers. Hope this helps, Daniel Chartier |
Last edited by: O_Moderator at: 7/24/2013 9:56 PMattachment reattached Last edited by: dchartier at: 7/24/2013 5:39 PM |
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7/24/2013 5:39 PM | |
Posts: 9 Rating: (0) |
In the symbol table i have written: PQW 752 - AO.0PQW 754 - AO.1
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7/24/2013 5:43 PM | |
Joined: 1/21/2013 Last visit: 3/19/2024 Posts: 4618 Rating: (705) |
But you have created OB1 in the user program and have written the value and transferred to PQW? |
7/24/2013 5:46 PM | |
Posts: 9 Rating: (0) |
how to in user program put a value for exit?
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7/24/2013 5:54 PM | |
Joined: 1/21/2013 Last visit: 3/19/2024 Posts: 4618 Rating: (705) |
Hi rogabob, You have experience with STEP 7 and S7 300? Getting Started Working with STEP 7 - Siemens |
Last edited by: Ste39 at: 7/24/2013 5:58 PM |
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7/26/2013 9:25 AM | |
Posts: 28 Rating: (5) |
Hi rogabob, can you explain what do you want to do with AO ? since you wrote that you send data to the OPC server and then to LabView, i think you can do that without really turn on the PQW just write the value in the PLC's memory and then send it, but if you want to load value to PQW, hope this attachment can help you, but you also need to make sure you wire the analog output correct before , regards Shaumi AttachmentB2-analog processing.pdf (180 Downloads) |
7/26/2013 11:36 AM | |
Posts: 9 Rating: (0) |
used L 27648 T PQW 754 and got 10V. I didn't know how to use L and T. sorry it was my first experience with AO and AI. |
7/27/2013 8:49 AM | |
Joined: 1/21/2013 Last visit: 3/19/2024 Posts: 4618 Rating: (705) |
Hi rogabob, Anweisungsliste (AWL) für S7-300/400 - Siemens Industry Online ... |
7/29/2013 2:13 PM | |
Posts: 9 Rating: (0) |
sorry for my back^) Is it possible to set AO in 2,6V? Or how to calculate L? |
7/29/2013 2:51 PM | |
Joined: 9/27/2006 Last visit: 4/20/2024 Posts: 12256 Rating: (2664)
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Hello rogabob; |
Last edited by: dchartier at: 7/29/2013 3:10 PM |
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