dremsol commented on issue #605:
URL: https://github.com/apache/plc4x/issues/605#issuecomment-1317172717

   Actually I tried with an array of WORD[400]. Splitting the 
readRequestBuilder into 4 arrays of WORD[100] works perfectly fine.
   ```
   PlcReadRequest.Builder builder = plcConnection.readRequestBuilder();
   builder.addItem("value-alarm1", "%DB1:0:WORD[100]");
   builder.addItem("value-alarm2", "%DB1:64:WORD[100]");
   builder.addItem("value-alarm3", "%DB1:128:WORD[100]");
   ```
   
   So I'm doing manually what the `spi.optimizer.SingleTagOptimizer` should do 
automatically. If I understand correctly this needs to be implemented on the S7 
driver level just as has been done for the modbus driver?
   


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