Allen-Bradley | 1734-IE4C | POINT I/O

Product Description: Allen-Bradley 1734-IE4C

The Allen-Bradley 1734-IE4C is a 4-channel analog input module in the POINT I/O family, engineered for monitoring 4–20 mA current signals from field devices such as transmitters, sensors, and actuators. It offers high- resolution input conversion, per-channel diagnostics, and a compact, modular design suitable for distributed control applications where space, performance, and flexibility are critical.

Key Features

• 4 analog current input channels
• Accepts 4–20 mA current signals
• 16-bit resolution for precise signal acquisition
• Channel diagnostics: under-range, over-range, open-circuit detection
• Internal 250 Ω input impedance (no external resistor needed)
• LED indicators for module and channel status
• Compatible with POINT I/O terminal bases and Logix controllers

Technical Specifications

• Number of Inputs: 4
• Input Signal Range: 4–20 mA
• Input Type: Current (source-type devices)
• Resolution: 16 bits
• Accuracy: ±0.1% of full scale (typical)
• Input Impedance: 250 Ω
• Isolation Voltage: 50V (channel to system)
• Backplane Current Draw: 75 mA at 5V DC
• Operating Temperature: 0°C to 55°C
• Dimensions (HxWxD): approx. 75 x 12 x 55 mm
• Mounting: DIN rail via compatible POINT I/O terminal base (e.g., 1734-TB, 1734-TOP)

Application Areas

• Analog current signal monitoring in process automation
• Integration with 2-wire and 3-wire loop-powered transmitters
• Industrial control panels and distributed I/O systems
• Machine-level monitoring of flow, level, and pressure
• Remote I/O installations with limited I/O requirements

Advantages

• High signal accuracy and integrity in a compact footprint
• Reduces wiring complexity with internal input impedance
• Reliable current loop input for industrial environments
• Simplifies diagnostics and maintenance with integrated fault detection
• Flexible deployment within POINT I/O and Logix architectures