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| 12/20/2009 8:05 AM | |
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Posts: 29 Rating:
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Hello Navang, I used CP341 in S7-300R Software redundency. I put CP341 in IM-153-2 rack & it was sucessfully configured & workingproperly. regards chintu |
| 3/13/2014 12:06 PM | |
Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating:
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Hi, Well what nishant_sinha is saying is true, We tried using CP340 once and it is only used for ASCII communication, small devices etc. CP341 is used for RS485 for PLC-PLC or other communication means. See the Serial Interface is supported by CP340 and Modbus interface by 340 it is supported only by cp341. There was a post in the forum as same. Check it out Link1 It is always better to go with CP341 for any application. Though the cost is little more, U will not have headache in the project. |
Last edited by: Tagolover at: 3/13/2014 12:10 PMJazz |
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| 3/13/2014 5:06 PM | |
Joined: 11/21/2007 Last visit: 12/23/2024 Posts: 2325 Rating:
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Well no one really answered my question regarding why CP341 is permitted in S7-300R and not CP 340 ? As far as Modbus using CP 340 is concerned ... we have been using it for more than 12 years now ( Of course we have written our own Modbus Drivers for CP 340 ) without any problem. Well the cost of CP341 is not a little more, if you add the cost of CP341 + Modbus Dongle it comes to apprx 4 times that of a CP340 with our own Modbus Driver. Thanks everyone for their ideas Cheers Navnag |
Last edited by: Navnag at: 3/13/2014 5:09 PMThere is no such thing as the last bug in a program |
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