Description Features Counting (plus or subtract, bidirectional) frequency 3 to 1000 Hz Counter mode 5000 Hz (max) Minimum pulse bandwidth 500 m sec (frequency) 100 m sec (counter) Programmable digital noise filter 8 to 65000 microseconds Isolation voltage 1000 VRMS Technical Specifications Certification CE, FM Connectors 1 x Plug-in screw terminal Enclosure ABS PC Power Consumption 1.5 W (max.) Counter Aux. Function Initial preset, hi-low alarm setting, alarm digital output mapping, overflag Channels 4 Input Frequency 0.3 to 1,000 Hz max. (frequency mode) 5,000 Hz max. (counter mode) TTL only Input Level Isolated or TTL level Isolated or TTL level Logic level 0 is 1 VDC max Logic level 1 is 3.5 to 30 VDC Isolation Voltage 1,000 VRMS Maximum Count 4,294,967,295 (32 bits) Minimum Input Current 2 mA (isolated) Minimum Pulse Width 500 microsecond (frequency mode) 100 microsecond (counter mode) Modes Counter (up or down, bi-direction), frequency Programmable Digital Filter 1 to 65,000 microseconds (noise filter function) TTL Input Level Logic level 0 is 0 to 0.8 VDC Logic level 1 is 2.3 to 5 VDC
