The Omron NX1W-MAB221 Machine Automation Controller Analog Input/Output Option Board combines 2 analog inputs and 2 analog outputs in one compact interface. The input channels support 0 to 10 V signals at 1/4000 resolution and 0 to 20 mA signals at 1/2000 resolution. Its 2 analog outputs provide a 0 to 10 V range with 1/4000 resolution for controlling compatible external devices. An 8-terminal screwless clamping block provides the wiring interface for the analog connections. The NX1W-MAB221 combines measurement and analog control functions within compatible NX systems. It extends the mixed analog PLC I/O range across Omron machine control applications.