Control units perform advanced measurement and control independent of the central computer. PID control continues, even if communications to the main computer are lost. Control units have many channel types to measure most available sensors. Systems are compatible with our own or other vendors' HMI software packages. During AC power loss they continue to measure and store time-stamped data.
Control units provide onboard statistical and mathematical capabilities.
Systems are easily expandable add new sites or add sensors to existing sites. Control units have wide operating temperature ranges and operate in rugged environments.