This C-programmable operator interface with on-board I/O consists of a controller and touch-screen packaged in a compact enclosure with NEMA 4 bezel and gasket. PK2600's touch-screen uses an 8 x 8 transparent overlay (interpolated to 15 x 15) over a 1/4 VGA 320 x 240-pixel graphic LCD with adjustable contrast and CCFL backlighting. The I/O consists of 16 digital inputs and 16 high current sinking outputs, along with 8 conditioned 12-bit analog inputs. The unit also offers up to 512K flash or 1M SRAM with 32K VRAM. Three serial RS-232/485 ports as well as an expansion port are also included.