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How to Programming FB/FCs using MODBUS TCP Protocol in 315-PN/DP ?????
Created by: AnproScott at: 11/5/2008 3:45 AM (2 Replies)
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| 11/5/2008 3:45 AM | |
Joined: 5/31/2007 Last visit: 9/18/2024 Posts: 90 Rating:
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Hello,my men: I have one CPU and one CP343-1EX20-0XE0 , and I have already set it all OK as a "Server" by MODBUS TCP protocol , just likes the manual says: /tf/WW/en/postattachments/download?attachmentId=5512 And I have one 315-2EH13-0AB0 CPU(PN/DP), the preblem is that what's FB/FCs I have to use for MODBUS TCP protocol? And what I should watch out for the programming? Please give me specific guide or manual. AConfusedAngel, Sex Driver |
| 11/5/2008 7:44 AM | |
Joined: 10/3/2008 Last visit: 8/28/2024 Posts: 961 Rating:
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Dear SexDriver, there are 3 products for communication via ModbusTCP: CP variant, CP Redundant (H-system) variant and PN-CPU variant. If you have a CP variant, this variant you can't use in a PN-CPU "pure". The only possibility to use this variant in a PN-CPU is to use an additional CP343-1 and you project the communication just as in a normal CPU with CP. The other possibitlity is to use the PN-CPU variant. With this variant you don't need an additional CP. The communication is established with UDT65 and TCON/TDISCON and the data transfer is realized with TSEND/TRCV. The blockparameters of MODBUSPN are a little different like the block parameters of MODBUS and MODB4, but the result of the communication is the same. The manual you can download here: FAQ. Wüstenräuber |
| 11/5/2008 8:36 AM | |
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Joined: 5/31/2007 Last visit: 9/18/2024 Posts: 90 Rating:
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Thanks a lot , my man. It's very clearly. SexDriver
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