1746SC-CTR8

Overview

1746SC-CTR8 is an Allen-Bradley SLC 500 16-Point 24 V Discrete 8-Channel Counter Input Module.

Counter Specifications

• Counter Speed (AC/DC inputs): 0 Hz – 50 kHz

• Input Frequency: 1 Hz – 50 kHz

• Minimum Pulse Time (DC Mode, External Enable/Disable): 8 µs

• Enable/Disable Setup Time: 20 µs

• Channel Update Time: 6 ms per channel (Counter and Frequency Mode)

• Count Value Range: Low ±32 K, High ±8 M

• Accuracy: ±1 count (Counter Mode), ±1% at 50 kHz; 0.0002% at 1 Hz (Voltage INI4VI)

Electrical Specifications

• Isolation Voltage: 1000 V DC (field wiring to backplane)

• Input Impedance: 25 kΩ

• Counter Voltage Input: Programmable 5 V DC, 12 V DC, 24 V DC, 0–75 V AC

• Backplane Current Maximum: 225 mA @ 5 V, 125 mA @ 24 V

Environmental Conditions

• Operating Temperature: 0 °C – 60 °C

• Storage Temperature: -40 °C – 85 °C

• Relative Humidity: 5% – 95% (non-condensing)

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