11/3/2019 12:53 PM | |
Joined: 8/12/2018 Last visit: 8/28/2023 Posts: 47 Rating: (0) |
hello, In my project I want to communicate between two 1500plc redundant I used Tsend_c and Trcv_c command but it didn't work also I tried to use the communication that is in simens support which is in the following link https://support.industry.siemens.com/cs/us/en/view/109763719 but it also didnt work the two plc's are connected with X2 port as the image show is the problem related to the way of communication (hw)? please if any one could help |
Last edited by: Jen_Moderator at: 11/04/2019 13:11:08Optimized link. |
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11/3/2019 5:07 PM | |
Joined: 9/27/2006 Last visit: 5/2/2024 Posts: 12257 Rating: (2666) |
Hello Eng_Alz; S7-1500H and S7-1500R redundant processor systems use MRP as a backbone for redundant communications. MRP (Media Redundancy Protocol) uses a ring topology, and requires that one of the S7-1500 CPUs work as a ring manager, using specialized switches. This is explained very clearly in the pdf that accompanies this Application Example: Configuration of a Ring Topology Based on “MRP” https://support.industry.siemens.com/cs/us/en/view/109739614 I could be wrong, but this is what I bel;ieve the Note you are refering to comes from: the example Siemens offers for LCOMRed_TCP uses a line topology between the 4 CPUs; if you connect the 4 CPUs in a ring instead of a line (by mistake or design), you must use MRP for redundancy and at least one dedicated switch to make one of the CPUs a ring master. Hope this helps, Daniel Chartier |
This contribution was helpful to2 thankful Users |
11/4/2019 10:36 AM | |
Joined: 8/12/2018 Last visit: 8/28/2023 Posts: 47 Rating: (0) |
ok, thank you |
11/18/2019 6:22 PM | |
Joined: 11/13/2013 Last visit: 10/18/2023 Posts: 35 Rating: (0) |
I have the same trouble with two S7-1500R stations (connection via X2 port). I have tried TSEND_C/TRCV_C, but It doesn't work correctly. In Run-Red mode all are ok, but I get error 80C5 from the T_RCV_C block when one of stations changes to RUN-Solo mode. There are no description of the error in Information System. I suppose this is 80C5 from TRCV "The remote partner has terminated the connection." Despite the fact that I use system IPs, TSEND_C tries to connect to exact PLC. Did you use LCOMRed connection?
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