7/25/2017 3:58 PM | |
Joined: 7/9/2015 Last visit: 8/30/2024 Posts: 3943 Rating: (585) |
Hi, please check the following FAQ: DP link between CPU 315-2DP (slave) and S7-400 (master) with STEP 7 V5.3Hope this helps! Regards, Towome |
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7/25/2017 4:19 PM | |
Posts: 75 Rating: (0) |
Here is Diagnose.txt from cpu diagnostic buffer, screen shots of master and slave hw configuration, picture of my PLC and complet Simatic project. Please tell me where I made misstakes. Before this project I worked on profibus between this plc and ET200M device and it was well done, but I now have many twistings. Please help. AttachmentProfibus problems.zip (521 Downloads) |
7/25/2017 6:17 PM | |
Posts: 75 Rating: (0) |
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7/27/2017 1:59 PM | |
Joined: 9/27/2006 Last visit: 9/18/2024 Posts: 12282 Rating: (2684) |
Hello Gujaa; Open your Profibus problems zipfile, and look at the master's HW configuration. You will see that addresses IW384 and QW384 are the start values for your CP 343-2 s-i master. It seems not to be configured properly. I suggest that for the Profibus communications test you remove this module from the configuration and from the PLC rack; check also that you disable any function that try to access this As-i module addresses. Once you have checked and corrected the Profibus-DP problems you can re-insert the Cp 343-2 and use it to connect to AS-i sensors and actuators. Try to fix one problem at the time, In your project, first configure the CPU as a DP-slave, determine how much data will be transfered to the master as In outs and Outputs. Remember that every Profibus exchange zone is evaluated from the master,s point of view: outputs from the master become inputs to the slave, inputs to the master are seen as outputs from the slave. Then use the following document as an example on how to insert the CP 342-5 as a Profbus master in the project. Simply replace the DP slave by the one you have already configured (the CPU) earlier. Configuration of a CP342-5 as DP Slave to a CP 342-5 as DP Master Hope this helps, |
This contribution was helpful to1 thankful Users |
7/28/2017 2:50 PM | |
Posts: 75 Rating: (0) |
Hello! Thank you very much Daniel for instructions. -and now I saw in document you send me profibus is configured in CP modul (CP342-5) I guess it must be in my configuration in only CPU submenu (slot 2.1). But how to configure Propperties of CP343-2, which adresses i should set? |
Last edited by: Gujaa at: 7/28/2017 2:52:46 PM |
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10/22/2017 1:44 PM | |
Posts: 75 Rating: (0) |
Hello everybody.
Steps for realizing a communication: • Configuration with STEP 7 (hardware configuration): connection between the communication partners • Programming in STEP 7 (user program): calling the communication block (for data transmission) I set first step correctly by this instructions https://support.industry.siemens.com/cs/document/6518822/dp-link-between-cpu-315-2dp-(slave)-and-s7-400-(master)-with-step-7-v5-3?dti=0&lc=en-DE
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