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Have a dillema. Which metod is better for connection of two differend SCADA? Data collection is run on one SCADA and then data must be transferred to another. So, there some way to do that:
1. Use OPC client on receiving SCADA (most expensive and not yet practically tested)
2. Use OPC to DDE converter on receiving SCADA
3. Convert from OPC to DDE on data collecting SCADA ant then send data thru NetDDE to receiving SCADA (cheapest and practically tested).
Is NetDDE well suited for technological data transfer over the network or better to choose OPC?
1. Use OPC client on receiving SCADA (most expensive and not yet practically tested)
2. Use OPC to DDE converter on receiving SCADA
3. Convert from OPC to DDE on data collecting SCADA ant then send data thru NetDDE to receiving SCADA (cheapest and practically tested).
Is NetDDE well suited for technological data transfer over the network or better to choose OPC?