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S7400H REDUNDANCY - BUS FAULT IN PROFIBUS DP 2 - ISSUES

Created by: micoy at: 9/30/2013 4:52 AM (3 Replies)

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9/30/2013 4:52 AM	Rate (0)
micoy Posts: 10 Rating: (0)	Hi Guys, Once again I need your expertise, I have this problems just now and it is quite hindrance for me to proceed on developing the project. The issues take place after I download the HW Configured I made, which I will elaborate in details. First HW Config - It consists of Racks, 2 PS for redundancy and 2 CPU (CPU 0 as Master and CPU1 as Stand by) -By inserting it to HW Config in SIMATIC MANAGER V5.5 as per catalog number then save and compile and last download it to the CPU 0. -No ERROR OCCURS and SYSTEM is smooth. As I check the OPERATIONAL MODE it was clearly indicated that the REDUNDANT is in RUN MODE. CPU 0 is also in RUN MODE and so as to the CPU 1. Now here is the fun part... -I will now insert my ET200M in PROFIBUS REDUNDANCY. -IM(1) is connected in PROFIBUS DP 1 and IM(2) in connected in PROFIBUS DP 2.( as per catalog) -insert a SM signal module (DI) to the ET 200M. -After save and compile no error occur. -HOWEVER, after i DOWNLOADED to the CPU 0, ther BUS FAULT error occur in CPU1 and the REDF is LIT. -The BUS FAULT at CPU 1 is flashing, at first we thought that the problem was in the PROFIBUS CABLE. So we used the PROFIBUS CABLE used in CPU 0. The result is still the same CPU 0 is running smoothly, while the CPU 1 still on bus fault.... GUYS ANY TECHNICAL RECCOMENDATION you want to share...I cant proceed to my project because ot this ISSUES.. Thank you so much in ADAVANCE. Sincerely yours, MICOY Troubleshooting: Check the fiber optic cable for synchronization OKAY, When I stop the CPU 0 by means of toggle switch it transfer its MASTER function to CPU 1. HW config ET 200M, and connect it to CPU 0 only, DP line okay and no error occur. HW config ET 200M and connect it to CPU 1 only, DP line ALSO OKAY, no error occur...This make my spin head. It is quite confusing..In a stand alone CPU config its PROFIBUS DP works, But in redundant configuration, always CPU 1 DP LINE is not functioning.... HELP ME PLZ....
micoy Posts: 10 Rating: (0)	Last edited by: micoy at: 9/30/2013 6:56 AM
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10/1/2013 5:27 AM	Rate (0)
BhaPraJ Silver Member Joined: 1/28/2012 Last visit: 7/23/2024 Posts: 519 Rating: (83)	[quote user="micoy"]Hi Guys, Once again I need your expertise, I have this problems just now and it is quite hindrance for me to proceed on developing the project. The issues take place after I download the HW Configured I made, which I will elaborate in details. First HW Config - It consists of Racks, 2 PS for redundancy and 2 CPU (CPU 0 as Master and CPU1 as Stand by) -By inserting it to HW Config in SIMATIC MANAGER V5.5 as per catalog number then save and compile and last download it to the CPU 0. -No ERROR OCCURS and SYSTEM is smooth. As I check the OPERATIONAL MODE it was clearly indicated that the REDUNDANT is in RUN MODE. CPU 0 is also in RUN MODE and so as to the CPU 1. Now here is the fun part... -I will now insert my ET200M in PROFIBUS REDUNDANCY. -IM(1) is connected in PROFIBUS DP 1 and IM(2) in connected in PROFIBUS DP 2.( as per catalog) -insert a SM signal module (DI) to the ET 200M. -After save and compile no error occur. -HOWEVER, after i DOWNLOADED to the CPU 0, ther BUS FAULT error occur in CPU1 and the REDF is LIT. -The BUS FAULT at CPU 1 is flashing, at first we thought that the problem was in the PROFIBUS CABLE. So we used the PROFIBUS CABLE used in CPU 0. The result is still the same CPU 0 is running smoothly, while the CPU 1 still on bus fault.... GUYS ANY TECHNICAL RECCOMENDATION you want to share...I cant proceed to my project because ot this ISSUES.. Thank you so much in ADAVANCE. Sincerely yours, MICOY Troubleshooting: Check the fiber optic cable for synchronization OKAY, When I stop the CPU 0 by means of toggle switch it transfer its MASTER function to CPU 1. HW config ET 200M, and connect it to CPU 0 only, DP line okay and no error occur. HW config ET 200M and connect it to CPU 1 only, DP line ALSO OKAY, no error occur...This make my spin head. It is quite confusing..In a stand alone CPU config its PROFIBUS DP works, But in redundant configuration, always CPU 1 DP LINE is not functioning.... HELP ME PLZ.... Can you provide Diagnostics Buffer and HW online view. . It may provide good information about your problem. . Did you set IM address properly. ?
	Regards, BhaPraJ
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10/1/2013 8:35 AM	Rate (0)
micoy Posts: 10 Rating: (0)	Hi Pranav, Thanks for the reply, Yes I do set the corresponding PROFIBUS ID for my 2 IM. As of this moment, I am still troubleshooting what might be the possible cause. It make my head spin, I haven't seen any problem about my HW configuration I insert all the items as per CAT# and moreover, I have tried to switch the PROFIBUS CABLE. Yet still, same scenario occurs. However, a change of things happen. Yesterday, my issue was the CPU 1 (stand by) Profibus 2 network, at this very moment it was change to CPU 0 (master) Profibus 1 network... This is weird can you help me.. Thanks.. Attachment S7400-H BUS FAULT ISSUE.zip (494 Downloads)
micoy Posts: 10 Rating: (0)
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10/11/2013 12:33 PM	Rate (0)
CS Moderator Moderator Joined: 9/1/2005 Last visit: 11/18/2024 Posts: 4113 Rating: (195)	Follow up question published by vrkis split to a seperate thread with the subjectsend data from Hardware redundancy cpu to software redundancy cpu. Best regards CS Moderator
	My Forum is the place to personalize your profile, track your topics, and maintain content that interests you. Best regards CS Moderator
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