AB | 1794-VHSC | VERY HIGH SPEED COUNTER MODULE

The 1794-VHSC module counts pulses from encoders (such as Allen-Bradley Bulletin 845), pulse generators or mechanical limit switches, or proximity switches, and returns either a count or frequency in binary format. The module features include:
• Two counters configurable for three encoder modes, counter mode, period/rate mode, continuous/rate mode, rate measurement, and pulsewidth modulation (PWM).
• Four outputs, isolated in pairs.
 • Outputs are current-sourcing at 5 or 12…24V DC (0.5 mA max @ 5V; 1 A max @ 12…24V). • Single-ended or differential inputs. 

• 2-phase encoder inputs up to a frequency of 250 kHz (X 4 mode). • Single-phase counter inputs up to a frequency of 1 MHz. 

• Input voltage range of 5V or 24V DC.