6/10/2009 2:27 PM | |
Posts: 163 Rating: (0) |
Thanku all.For communication between two nos. of H stations,my configuration goes link this am i correct? And im planning to follow this link https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=18513371&caller=view There are two H stations in my project which has communicate with each other. Attachmentnetpro.zip (223 Downloads) |
Last edited by: CS Moderator at: 6/10/2009 8:11 PMnew subject after splitting |
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6/11/2009 6:05 AM | |
Posts: 163 Rating: (0) |
Ok I will try with S7 fault tolerant connection and my configuration goes like this.Tell me is it correct? Attachmentnetpro.zip (213 Downloads) |
6/11/2009 11:07 AM | |
Posts: 557 Rating: (64) |
HI check your attachment,it is still showing a TCP CONNECTION. PLEASE CHECK THE ATTACHMENT........... REGARDS Attachmentuntitled.zip (205 Downloads) |
Last edited by: Eastern at: 6/11/2009 11:16 AM |
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6/11/2009 11:46 AM | |
Posts: 163 Rating: (0) |
I tried with S7 fault tolerant connection,got some errors. Why both my H Stations should be under the same project?is it because it has communicate with each other or for establishing s7 connection between them or is it possible to communicate even if i develop both projects seperately Attachmentnetpro.zip (197 Downloads) |
6/11/2009 12:59 PM | |
Posts: 557 Rating: (64) |
HI Please find the attachment... For software programming you can use GET(SFB14), PUT(SFB15) regards Attachmentuntitled.zip (210 Downloads) |
Last edited by: Eastern at: 6/11/2009 1:01 PM |
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6/12/2009 9:01 AM | |
Posts: 163 Rating: (0) |
I don get errors when i connect the two H stations through s7 connection whereas s7 fault tolerant connection gives me some errors.Pls find attached. Attachments7 connection1.zip (243 Downloads) |
6/12/2009 12:18 PM | |
Posts: 163 Rating: (0) |
The configuration is ok with the s7 connection but since you asked me to go with s7 fault tolerant, I tried. |
6/12/2009 12:27 PM | |
Posts: 691 Rating: (37) |
You can go for S7-connection S7-Fault Tolerant will come into picture if you are having 2- CPs in one PC( I think in your case its not there) |
6/12/2009 12:36 PM | |
Joined: 5/24/2007 Last visit: 4/24/2024 Posts: 284 Rating: (27) |
Hi Sindhu Normally you have additional software do be programmed if you are using a S7 connection. The requirement is that you want to continue to communicate when PLC1 CPU1 is working with PLC2CPU1 and then suddenly PLC1 CPU1 fails and switches over to PLC1CPU2, the communication should go on.Fault tolerant connection can do the switch automatically and the PLC2CPU1 will have not face any communication interruption. This is because when this happens the CP443 automatically handles the switchover. But it does not do any such thing with a S7 connection. So you will have to ensure that the S7 connection from one CPU to the other CPU takes place in your programme. About your CPs , I guess I was not clear. You need 1 CP for each CPU and that means for 2 redundant systems total of 4 CPs (which is exactly what you have for in your configuration). It is upto you to configure what communication based on your requirements. There are no rulesWe are trying to help you. Best way to go about this isyou test how the system is working the way you set it up. If you are happy with it go with it. Otherwise have a look inside the forum tohelp you to get it running. Krish |
6/12/2009 12:50 PM | |
Posts: 557 Rating: (64) |
hi find the attachment, which is having a only 1 CP 443-1 having a fault tolerant connection. i think the CP which you are using is having not a fault tolerant faclility. but the connection which i have given in attachment is having a facility. it is allow the generate the fault tolerant connection & the benifit is that whenever any cp will fail it will automaticlly switchover to other cp, but in case of TCP connection it is not possible. regards Attachmentuntitled.zip (130 Downloads) |
6/12/2009 1:41 PM | |
Posts: 163 Rating: (0) |
Thanku all.Will try and revert back ........... |
6/12/2009 2:02 PM | |
Posts: 163 Rating: (0) |
CP443-1 used in our project supports fault tolerant connection.Then what is the problem AttachmentCP-FAULT TOLERANT.zip (131 Downloads) |
6/12/2009 11:08 PM | |
Joined: 5/24/2007 Last visit: 4/24/2024 Posts: 284 Rating: (27) |
Hi Sindhu The problem is what I have been telling all the time. You have no connections coming out from the CP443. I have markedwhere they are missingin your configuration and where it is "Eastern"´s configuration. Krish Attachmentkriscomment.zip (153 Downloads) |
6/13/2009 5:57 AM | |
Posts: 557 Rating: (64) |
HI I got the problem in your CP, you have not given a MAC address to your PN-IO, after giving a MAC address to your all CP, You will be able to generate the fault tolerant connection.but your MAC address should be different for all four cp.... it will work.... find the attachment.. AttachmentCP.zip (121 Downloads) |
Last edited by: Eastern at: 6/13/2009 6:03 AM |
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6/16/2009 12:10 PM | |
Posts: 163 Rating: (0) |
Thanku both.Now it shows no errors. |
6/16/2009 12:40 PM | |
Posts: 163 Rating: (0) |
What should be connected to LADDR input of AG_LSEND and AG_LRECV since its an S7 fault tolerant connection. Im trying to follow the program in this link https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=18513371&caller=view. Should i call this block(AG_LSEND and AG_LRECV)in the other H station also ? AttachmentLADDR.zip (124 Downloads) |
6/16/2009 12:53 PM | |
Posts: 163 Rating: (0) |
Can anybody help me with a sample program of FC50 and FC60 using s7 fault tolerant connection.Need to exchange data from both the stations. |
6/16/2009 5:02 PM | |
Posts: 557 Rating: (64) |
HI you can use AG_SEND FC 5& AG_REC FC 6.these are the library block, you can call from simatic Library block, after pressing F1, You will get a all details with example....... REAGRDS |
6/23/2009 1:05 PM | |
Posts: 163 Rating: (0) |
is there any restrictions on calling the number of times the FC5 and FC6 are to be used? |
6/23/2009 2:51 PM | |
Posts: 5822 Rating: (412)
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Hello, I am sorry, I am lost a bit... may I try to resume first. |
Last edited by: J_Bell at: 8/27/2009 11:53 AM |
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6/24/2009 6:52 AM | |
Posts: 163 Rating: (0) |
How do I chk the communication between these two stations after using get/put function using S7-PLCSIM |
6/24/2009 4:47 PM | |
Posts: 5822 Rating: (412)
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Hello, PLCSIM does not support S7-Communication at all. You may call the function blocks but the status you receive is not conclusive in this situation. |
8/26/2009 12:21 PM | |
Posts: 163 Rating: (0) |
Why S7 FAULT TOLERANT CONNECTIONS are unilaterally configured s7 connections.Unilateral s7 connection don have a partner ID and must be downloaded only on one station in whose connection table the s7 connection is shown. Should I go for bilateral s7 connection?Also the data blocks that is going to be shared should be on both the stations? In the example program DB200 AND DB201 are in both the stations.Why |
8/27/2009 11:55 AM | |
Posts: 5822 Rating: (412)
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Hello, I am sorry, sure... you are right Fault tolerant S7-Connections are bilaterally configured S7-Connections. |
8/28/2009 3:27 PM | |
Posts: 163 Rating: (0) |
Hello J_Bell, Can you tell me the datablocks in one station should be in the other station also?Im not understanding the concept. Lets say, DB1 is in one station[1](the values in this DB are to be shared to the other station[2]) Should this DB1be in the both the stations i.e in station1 and station2?both the station's blocks |
8/28/2009 3:40 PM | |
Posts: 5822 Rating: (412)
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Hello, no the source of the data at the first station does not have to be the same as the destination of the data at the second station. So you surely may 1000 Byte from DB1.DBX0.0 to DB29.DBX 100.0 no problem. You even may use other memory types like 10 Byte from DB10.DBX10.0 to P#M200.0 Byte 10. Both is no problem, if it is possible (means the area is available at the destination station) Best regards J_Bell |
8/29/2009 9:09 AM | |
Posts: 163 Rating: (0) |
May be my question is silly but i guess it would be of great help at this time if you clear me this concept. Attachmentconnecction types.zip (178 Downloads) |
Last edited by: Sindhu at: 8/29/2009 9:31 AM |
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8/31/2009 2:22 PM | |
Posts: 5822 Rating: (412)
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Dear Sindhu, actually I personally doubt that this list is right in this point. Let me think... If I configure a fault tolerant S7 Connection from my PC and I use an OPC Server on top of it I open the OPC Scout. If I check the DBs there I see them, I can getfrom or put to itany data I want. So why should GET and PUT not work here? We still have the SAPI S7 interface just a certain part of connection handling below it. Personally I doubt this statement in the list, may you tell us where you got this from? About your issue with the MP377 I guess that you have used the known function to establish your Ethernet Link from one Panel to the H-System (starting with flexible 2008 I guess)by the use of 2 Ethernet Connections. Well, I see no reason why it should not work to have 4 connections to two H-Systems instead of 2 connections to one H-System. If you are connected to the second H-System, as it is at the same Network as far as I understood, you should not have any problem to read the I/O valuse as you need it. I hope this will help you. Best regards J_Bell |
9/3/2009 11:28 AM | |
Posts: 163 Rating: (0) |
Hello J_Bell, 1st Issue: I still tried GET/PUT FUNCTIONS on s7 Fault tolerant connection,when i go online of that get/put block for evry tick of marker byte(10.6),I get error in the get block.(Error word:i get decimal 4)[Only for one tick]I don understand where am i doing mistake?can you help me out? 2nd Issue: I din have any prob in communicating between the panels by adding connections of the other H station |
9/4/2009 3:04 PM | |
Posts: 5822 Rating: (412)
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Hello, well... if I take the Status 4 right you may have a Problem with your SD or RD ANY Pointer. May you post what you have there and if these areas are available in both your PLC’s? |
9/11/2009 7:38 AM | |
Posts: 163 Rating: (0) |
Pls find attached my program which shows errors. AttachmentP-CS-0_7.zip (156 Downloads) |
Last edited by: Sindhu at: 9/11/2009 7:49 AM |
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9/11/2009 11:08 AM | |
Posts: 5822 Rating: (412)
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Dear Sindhu, I am sorry but as far as I know are Boolean arrays not allowed to be used in S7-Communication. As a solution for you I would recommend to use BYTE 8 instead of BOOL 64 at your ANY Pointer. |
11/13/2009 5:59 AM | |
Posts: 163 Rating: (0) |
Hello J-BELL It worked very well.And sorry for the late reply. As you correctly said boolen array are not supported.and when i changed to byte,it worked very fine.Thanku very much J_Bell. I have completed my project successfully.Thanku all for ur support |
This contribution was helpful to2 thankful Users |
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