NINO_ELC Posted March 20, 2012 Report Share Posted March 20, 2012 Hi all, in my application, a V350 will be a slave in a Modbus RTU net (RS485). I will provide, in a support text, the address map of the registers the Master (SCADA) should read to get the info required. But, in any case the Master (SCADA) should not be able to Write in the Slave PLC memory. As I have seen from the examples, activating the Modbus in the slave PLC enables the Master to Read and Write to any register in the PLC. Is there any way to block the Write command ? (The SCADA development is a future project, which may not be granded to me) Thanks Quote Link to comment Share on other sites More sharing options...
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