S7-317-2 PN/DP and S7-224 as Profibus Slave to redundant S7-414
Created by: solex at: 3/26/2009 12:57 AM (2 Replies)
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| 3/26/2009 12:57 AM | |
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Posts: 5 Rating:
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Hi, I am new to Siemens. I need help on configuring S7-317 and S7-224 for Profibus communication. The Profibus is as follows: the master shall be a Redundant S7-414 4H PLC.TheProfibus from the master PLCs will terminate ata Y-Link (153-2BA02-0XB0). The slave nodes, (11)S7-224 and (3)S7-317, will connect to the Profibus segment after the Y-link. The PLC program for the slave nodes will be developed by vendors. However, for internal testing, I am trying to configure (2) S7-317 and makethem communicate with the master PLCs (redundant S7-414 4H). AttachmentPB_network.pdf (267 Downloads) |
| 3/26/2009 6:01 AM | |
Joined: 9/27/2006 Last visit: 4/19/2025 Posts: 12346 Rating:
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Hello solex; Any slave that is required to be installed downstream of a Y-link must be imported through its gsd file. The following link will show you the step-by-step integration of a S7-300 as slave to an H-system. You can use the same steps to integrate the EM277 (S7-200 slave). http://support.automation.siemens.com/WW/view/en/19951154 Also, when you generate the exchange table between the slave and the master, you can setup output (A or Q addresses, depending of the German or English mnemonics used) data, from master to slave, and input (E or I addresses) data from slave to master. That way you write to the slave and read from it. Of course your program must use these data exchange ranges, that is write to the I addresses the data that you want the master to recieve, and copy the Q addresses to the functions that will use data from the master. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 3/26/2009 6:01 AM |
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| 3/27/2009 10:43 PM | |
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Posts: 5 Rating:
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Thanks for the help. I am almost there. I finally got the profibus to work. I need one more step. How to exchange data between the Master PLCs and the Slave PLCs (two S7-317)? In the Hardware config for the H station, I've configured to take in 4 bytes and 4 bytes out from each slave and configured the HW for the slaves according. See attachment. When I try to monitor the data, it says the data cannto be monitored. I also tried to programm an XIO and OTE rung in OB1 and assigned the OTE coilto Q 504.0. I got Event ID 16#2523 in the Diagnostic Buffer of the CPU when I did. If I change the coil to M X.X, the error code went away. What am I doing wrong? A couple more observations: 1.The "REDF" LED light on both processors are always on. Should they be on? 2. Only one CPU can be put in "RUN" mode. Should both CPU be "RUN" mode and the standby just takes over when the primary fails? Thanks in advance. AttachmentData_Setup.pdf (250 Downloads) |
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