SLC-94 is designed for precision time (period) measurements, e.g. duration of time interval and mesurements of machine's operating time. Signals from push-buttons or contactors of control devices are connected to the terminals placed on back side of the counter. Properly programmed counter allows to measure time period between {START} and {STOP} signals. Other configuration allows to measure the activity time of {START} signal. In addition the measure can be started, stopped and cleared using local keyboard (on front of the device) or via RS-485 interface. Apart from basic function of time counting, totalizer is also available. Both counters are triggered and stopped simultaneously. Time counting is realised in range 0 ms to 999 99.9 hours. Build in two relay outputs allow use of this counter for control in many time depend processes. The counter can be configured with the local keyboard or free S-Config software via the RS-485 communication port.