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gert
Member 3
Joined: 02 Jan 2015
Posts: 645
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 Posted: 22/12/2015 11:53 Post subject: Master-Slave Communication via UDP Broadcast |
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Master-Slave Communication via UDP Broadcast
https://support.industry.siemens.com/cs/document/20983558/master-slave-communication-via-udp-broadcast?dti=0&pnid=13613&lc=en-US
A master shall be able to send a data record to several slaves quickly and simultaneously to initiate a quasi-synchronous reaction. This requirement is particular frequent in conveyor and transport systems. The number of active slaves shall be flexible, and the function of the master be transferrable to other stations.
The UDP protocol is used here for the communication. The advantage here is that the connections need not be configured statically, but can be set up and managed program-controlled. Hence, the participating stations need not be known to each other during the configuration process, and the master-slave switchover can be performed dynamically. This procedure enables the most flexible solution for expanding the system to almost any extend.
The following graphic shows the communication structure of the example program.
https://support.industry.siemens.com/cs/attachments/20983558/20983558_MasterSlave_UDP-Broadcast_DOC_V20_en.pdf
https://support.industry.siemens.com/cs/attachments/20983558/20983558_MasterSlave_UDP-Broadcast_CODE_V20.zip
https://support.industry.siemens.com/cs/attachments/20983558/20983558_MasterSlave_UDP-Broadcast_LIB_V10.zip |
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gert
Member 3
Joined: 02 Jan 2015
Posts: 645
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| Posted: 08/02/2016 17:29 Post subject: Master-Slave Communication via UDP Broadcast |
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updates Master-Slave Communication via UDP Broadcast
https://support.industry.siemens.com/cs/attachments/20983558/20983558_MasterSlave_UDP-Broadcast_DOC_V21_en.pdf
https://support.industry.siemens.com/cs/attachments/20983558/20983558_MasterSlave_UDP-Broadcast_CODE_V21.zip
https://support.industry.siemens.com/cs/attachments/20983558/20983558_MasterSlave_UDP-Broadcast_LIB_V11.zip |
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tecnoplc
Junior 2
Joined: 03 Feb 2016
Posts: 40
Location: Spain
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| Posted: 16/02/2016 08:45 Post subject: |
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Sorry: would you be so kind to explain to me what is the difference between UDP communication and a simple profinet communication master - slave??
I will appreciate a lot. thank you.
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Programming PLC and HMI
www.tecnoplc.com |
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