The UMP-360 controller can be configured with a Sheffield RCU or a Brown and Sharpe jog box. There are some differences in the way the CMM operates with a B&S jog box (For details, see the topic "B&S jog boxes".)
When configured with the B&S jog box the controller behaves as if it is always in Auto Mode (DCC motion enabled) as opposed to the Sheffield RCU where the AUTO button must be pressed. An LED is illuminated when DCC motion is enabled. A side-effect is seen with the PC-DMIS behavior when an ON ERROR statement with action on an unexpected hit is placed in the measurement routine and it is enabled for a feature. When an ON ERROR/unexpected hit condition is encountered on a Sheffield RCU configured CMM, it is taken out of Auto Mode and you must re-assert Auto Mode (press the Auto button) to continue. With a B&S configured CMM the DCC motion continues when this condition exists and is encountered.