Allen-Bradley MicroLogix 1762-IF2OF2 Analog Input/Output Module

The Allen-Bradley MicroLogix 1762-IF2OF2 Analog Input/Output Module is a versatile module designed for the MicroLogix series of programmable logic controllers (PLCs). It combines analog input and output functionality in a compact design, making it suitable for a variety of industrial automation applications. Here’s a detailed breakdown of its features and specifications:

General Specifications

• Class: Programmable Logic Controller Module
• I/O Type: 4-channel analog combo (2 inputs, 2 outputs)
• Isolation: Isolated I/O
• Status Indication: LED
• Temperature Range: -20°C to 65°C (-4°F to 149°F)

Electrical Specifications

Analog Inputs

• Number of Inputs: 2 differential (unipolar)
• Resolution: 12-bit
• Input Range:
  • Voltage: 0-10V DC
  • Current: 4-20mA
• Impedance:
  • Voltage Terminal: 200 kΩ
• Common Mode Voltage Range: -27V to 27V
• Common Mode Rejection: >55 dB at 50 and 60 Hz
• Input Update Time: 2.5 ms (typical)
• Protection:
  • Voltage Input: -30V
  • Current Input: -32mA

Analog Outputs

• Number of Outputs: 2 single-ended (unipolar)
• Output Range:
  • Voltage: 0-10V DC
  • Current: 4-20mA
• Load Ranges:
  • Voltage Output: >1 kΩ
  • Current Output: 0-500 Ω
• Update Time: 4.5 ms (typical)
• Accuracy:
  • ±0.5% full scale at 25°C
  • ±1.17% full scale across the operating temperature range
• Output Protection:
  • Short-circuit and overcurrent protection
  • Reactive loads: <1 µF (voltage), <0.1 mH (current)

Electrical Noise Immunity

• Fast Transient Burst: IEC 1000-4-4: 2 kV @ 5 kHz
• Conducted Immunity: IEC 1000-4-6: 10 V @ 0.15–80 MHz
• Radiated Immunity: IEC 1000-4-3: 10 V/m, 80–1,000 MHz

Environmental Specifications

• Operating Temperature: -20°C to 65°C
• Storage Temperature: -40°C
• Operating Humidity: 5% to 95% (non-condensing)
• Operating Altitude: 2000 m
• Shock Resistance: 30 g
• Vibration Resistance: 5 g @ 10–500 Hz

Mechanical Specifications

• Dimensions:
  • Height: 90 mm
  • Width: 40 mm
  • Depth: 87 mm
• Weight: 240 g (shipping weight)
• Connection Type: Screw terminals
• Recommended Cable: Belden 8761 (shielded)

Performance

• Analog Input and Output Configuration: Fully configurable for various signal types (voltage or current).
• A/D and D/A Converter Type:
  • Input: Successive Approximation
  • Output: Resistor String
• Repeatability: ±0.12%

Safety and Compliance

• Hazardous Environment Class: Class I, Division 2 (UL 1604, C-UL under CSA C22.2 No. 213)
• Radiated and Conducted Emissions: EN 50081-2, Class A
• Surge Immunity: IEC 1000-4-5: 1 kV galvanic gun
• ESD Immunity: EN 61000-4-2

Applications

The 1762-IF2OF2 module is ideal for applications requiring precise analog control and monitoring, such as:

• Process automation
• Machine control
• Temperature and pressure monitoring