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S7MODBUS

Created by: AON at: 10/6/2006 11:17 AM (4 Replies)

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10/6/2006 11:17 AM	Rate (0)
AON Posts: 3 Rating: (0)	Howcan I getFB240, S7-400H communication FB for 341 Modbus-Master, I need to received and force data using it. Thanks
AON Posts: 3 Rating: (0)
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10/7/2006 9:32 PM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Hello AON, I have to admit I am a bit confused I do not know a FB 240 for the S7-400 H could you tell me which Function block you want to have? If you look for the MODBUS Functionality for the CP 341 you need to purchase the MODBUS Driver for the CP, either a Master or a Slave version. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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10/9/2006 4:57 AM	Rate (0)
AON Posts: 3 Rating: (0)	Dear J_Bell, I used Simatic PCS7 programming and I used chart to compile my program. Usually, I can used FB7& FB8and generated the request for transmited and received data. In this case,I have 12CP143 (modbus master) for one cpu S7-400 so its quite trouble for me. In one of SIEMENS project, I saw that theyusing FB240 to generate Tx&Rx and its very simple program. If I could have it, its very help me in my project. Best regards AON
AON Posts: 3 Rating: (0)
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10/9/2006 9:18 AM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Dear AON, well if you would tell us the name of the Sample Program or the name of the Function block, besides the number, this would help quite a lot. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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10/9/2006 1:07 PM	Rate (0)
AON Posts: 3 Rating: (0)	FB240, S7-400H communication FB for 341 Modbus-Master Thanks
AON Posts: 3 Rating: (0)
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