Omron CS1W-DRM21-V1 DeviceNet Unit Controls of up to 32,000 points (2,000 words) per master. Remote I/O communications can be allocated in any area using DM settings. 16 DeviceNet Units can be mounted for each CPU Unit (3 max. for fixed allocations). When using the Configurator, remote I/O can be allocated in an order independent of node address. DeviceNet Units can be used as a master and a slave, and this functionality can be used simultaneously.