1794-IE12 | Allen-Bradley Flex 12 Point Analog Input Module

Input Specifications - 1794-IE12

• Number of Inputs: 12 single-ended, nonisolated channels
• Input Resolution: 16 bits
• Data Format: Left-justified, 16 bit
• Input Conversion Type: Successive approximation
• Input Conversion Rate: 8.0 ms (all channels)

Input Characteristics:

• Voltage Terminal:

  • Range: ±10V (user configurable)
  • Resolution: 320 µV/cnt

• Current Terminal:

  • Specification: 4...20 mA (user configurable)
  • Certification: 0...20 mA (user configurable)
  • Resolution: 0.641 µA/cnt

Impedance and Rejection:

• Input Impedance:

  • Voltage Terminal: > 1 MΩ
  • Current Terminal: < 100 Ω (1)

• Normal Mode Rejection Ratio:

  • Voltage/Current Terminal:
    • -3 dB @ 0.05 Hz; -20 dB/decade
    • -52 dB @ 50 Hz; -54 dB @ 60 Hz
  • Voltage/Current Terminal with Quick Step:
    • -3 dB @ 1.5 Hz; -20 dB/decade
    • -29 dB @ 50 Hz; -31 dB @ 60 Hz

Response and Accuracy:

• Step Response:

  • Voltage/Current Terminal: 1.3 seconds
  • Voltage/Current Terminal with Quick Step: 0.09 seconds

• Absolute Accuracy:

  • Voltage Input: 0.1% full scale @ 25 °C
  • Current Input: 0.1% full scale @ 25 °C

• Accuracy Drift with Temperature:

  • Voltage Terminal: 0.004% full scale/°C
  • Current Terminal: 0.004% full scale/°C

Overload Specifications:

• Voltage Overload: 30V continuous (one channel at a time)
• Current Overload: 32 mA continuous (one channel at a time)

1794-IE12,Flex 12 Point Analog Input Module

• Recommended Terminal Base Unit: 1794-TB3G, 1794-TB3GS, 1794-TB3GK, 1794-TB3GSK
• Terminal Base Screw Torque: 0.8 Nm (7 lb-in)
• Indicators: 1 red/green power/status indicator
• Keyswitch Position: 3
• Isolation Voltage: 50V (continuous), Basic Insulation Type
• Flexbus Current: 80 mA
• Power Dissipation:
  • Max Electrical: 1.2 W @ 31.2V DC
  • Max Thermal: 4.1 BTU/hr @ 31.2V DC
• Dimensions (H x W x D): 46.8 x 94 x 54 mm (1.81 x 3.7 x 2.1 in.)
• Weight: 97 g (3.4 oz.)
• Wiring Category: 2 – on signal ports; 2 – on power ports
• Wire Type: Shielded
• Enclosure Type Rating: None (open-style)
• North American Temp Code: T4A