5/6/2018 1:33 PM | |
Posts: 3 Rating: (0) |
Salam, My project is based on the communication between two PLC's and two HMI's, I really need your helps to exchange data blocs between the two CPU's..Controlling traffic lights is the main objectif of my project that I will control 2 streets in each PLC and after the exchange will be realized (the cars begin their deplacements in the first HMI and continue their traject in the other HMI)..please i need your helps about this and hank you all ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 5/7/2018 7:40:44 AMNew subject after splitting |
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5/7/2018 2:13 PM | |
Posts: 3 Rating: (0) |
I used TIA PORTAL V13.0 and S7-1200 as an API. |
This contribution was helpful to1 thankful Users |
5/7/2018 9:34 PM | |
Joined: 9/27/2006 Last visit: 9/19/2024 Posts: 12282 Rating: (2684) |
Hello Maha; The simplest communication between 2 S7-1200 CPUs would bet PUT and Get instructions.See the definitions and applications of GET and PUT in the communication compendium: CPU-CPU communications Compendium https://support.industry.siemens.com/cs/ww/en/view/78028908 They use "S7 Comunication" exchanges, which means a unilateral connection over Profinet amongst other networks (you could do it easily with a single GET amnd PUT from one CPU, the other need not be progrmmed). It is limited to 160 bytes per exchange, thos FAQ shows you how to sequence the GET and PUT instructions if you require to read and write more data: How do you program the "GET" and "PUT" instructions in the user program of the SIMATIC S7-1200 CPU in order to transfer more than 160 bytes of data? https://support.industry.siemens.com/cs/ww/en/view/65975617 Hope this helps, Daniel Chartier |
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