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RS 232 bar code scanner communication with s7 300

8/11/2013 7:02 AM	Rate (0)
Rudrani Posts: 163 Rating: (4)	Hi, I have a CPU s7 300 with DP port and i have to interface the Bar code scanner with RS232 port with the CPU. So I want to know which CP should I use for this CP 340 or CP 341?..... I have gone through the manuals but didn't get the exact difference....so can anybody tell me the difference in brief?.... pl reply as soon as possible.. Regards, Rudrani
Rudrani Posts: 163 Rating: (4)
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8/12/2013 6:50 AM	Rate (0)
Nelliyan randy Posts: 461 Rating: (29)	It differs based on the protocols they support c the below link , https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=12964856&caller=view CP 340 does not support Modbus at all CP 341 can be used as Master or Slave 341 support to tx higher user data compared to 340...Both CPs are point-to-point communication modules for S7-300 both for transmitting and receiving of serial data.. 341 is costlier than 340... Choose based on ur requrement & environment Regards, Nelliyan.G
Nelliyan randy Posts: 461 Rating: (29)
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This contribution was helpful to 1 thankful Users Rudrani

8/12/2013 8:06 AM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 11/20/2024 Posts: 4620 Rating: (710)	Hi Rudrani, If you're not sure you can tell us the code of your Barcode Scanner to see the type of communication.

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