9/8/2009 11:28 AM | |
Joined: 2/6/2009 Last visit: 8/19/2024 Posts: 939 Rating: (118) |
HI, The CP 341is the master and the communication protocol is Modbus Master RTU on the physical layer RS485. Please find the attachment for the Communication manual of the woodward easygen 3000 controller. At the page no .80 the modbus parameters are given under data protocol 5003. Can you help me in making the Modbus Sendlist and receive list. Please show the example for one or two register. Attachmenteasygen 3000 interfacing manual.pdf (2741 Downloads) |
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9/8/2009 5:48 PM | |
Joined: 1/17/2007 Last visit: 10/21/2024 Posts: 1547 Rating: (537) |
The information you require can be found in the following manual:- Loadable Modbus RTU Manual I do not have an example application to offer you, but others on here might have. |
Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. |
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This contribution was helpful to1 thankful Users |
9/11/2009 3:58 PM | |
Joined: 1/29/2006 Last visit: 11/1/2024 Posts: 447 Rating: (64) |
Hey! My project is attached. Please, pay attention: - it is written for use of loadable MB drivers from Siemens! - I believe, with this Dongle you have also received some SW, that must be installed in your PC with Step 7 - in my project, main FB is FB200. Communication runs in NW 10 and NW12; all other is preparation. - my example is written for communication with Krohne mass flow meter; you must change register numbers,.... all other things for your ModBus slave, according to description of your slave.... Have fun! uel123 P.S.: see also ModbusMaster Manual, see Smiffy`s post! AttachmentSAR_KUM_MB_MAST_CP341.zip (3653 Downloads) |
Last edited by: uel123 at: 9/11/2009 4:01 PM |
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This contribution was helpful to7 thankful Users |
9/18/2009 6:37 AM | |
Joined: 1/29/2006 Last visit: 11/1/2024 Posts: 447 Rating: (64) |
Hey, Kumar! Did you solve your problems about Modbus? uel123 |
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