Standard Touch Screen PLC Control and Standard Dryer Features That Others Call Options! PLUS 5-Year Warranty on All Models. The NWB-DC-PLUS packages include all accessories needed for efficient drying and conveying of any resin to a process machine PLUS a 7" high resolution color touch screen PLC with advanced features like OverDry Protection, photo assisted diagnostics, trending and data logging. If you just need a basic Portable Dry/Convey model, choose the NWB-DC with a 4" color touch screen PLC without the advanced features. 5-Year warranty on ALL models.