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arclivin

PLC compatible for interfacing

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Please can anybody advice me whether the Siemens PLC model attached( as attachment) can be used as an interface to establish serial port communication with DAC Quad manual attached below for serial port communication using rs232 serial port DB09 connector to remote scada system with Modbus RTU communication S7-1211C.pdf DAC-Quad-Manual.pdf Edited by arclivin

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No. Your card does not support Modbus RTU protocol.

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Hi, Do note that I am in no way a Siemens expert.. If the PLC that you are using, cannot do Modbus RTU you may want to consider our Anybus gateway. http://www.anybus.com/support/support.asp?PID=345&ProductType=Anybus%20Communicator It can act as a Modbus RTU master-to-Profinet slave. There is no programming involved, just simple configuration (It even has a Modbus RTU wizard). My 2 cents

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For converting Profinet to RS-232/RS-485 which is the physical layer in Modbus RTU, You may use I-7580: http://www.icpdas-usa.com/i_7580.html?r=mohsen

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