public static void main(String[] args) throws Exception {
    PlcDriverManager manager = new PlcDriverManager();
    try (PlcConnection conn = manager.getConnection("s7://192.168.167.211/0/0")) {
        Optional<PlcReader> optionalReader = conn.getReader();
        if (!optionalReader.isPresent()) {
            return;
        }
 
        PlcReader Reader = optionalReader.get();
 
		// Example using prepareField and prepareNamedField ...
        PlcReadRequest request = new PlcReadRequest(
            new PlcNamedFieldconn.prepareNamedField("parameterX", conn.prepareField("%DB8.DBX3:INT")),
            new PlcNamedFieldconn.prepareNamedField("parameterY", conn.prepareField("%DB9.DBW4:DOUBLE")),
            new PlcNamedField("others", conn.prepareField("%DB2.DBW2:BYTE[10]")));
 
        CompletableFuture<PlcReadResponse> future = reader.read(request);
 
        PlcReadResponse response = future.get();
 

        // Access an item by it's name.
        System.out.println("Parameter X: " + response.getInteger("parameterX"));
 
        // Iterate over all items
        for(String fieldName: response.getFieldNames()) {
			switch(fieldName) {
				case "parameterY": 
	                System.out.println("Parameter y: " + response.getDouble(fieldName));
					break;
				case "others": 
	                for(int i = 0; i < response.getNumValues(fieldName); i++) {
    	                // Intentionally using short instead of byte
        	            // In this case it will return Byte[i] but convert that into a Short.
            	        System.out.println(" - " + response.getShort(fieldName, i));
                	}
					break;
			}
        }
    }
}