Description
1. Product Title
Allen-Bradley 1734-IE8C – POINT I/O 8-Channel Analog Current Input Module

2. Product Overview
The 1734-IE8C is a high-density analog input module from Allen-Bradley’s POINT I/O series, designed for distributed I/O architectures in modern PLC and DCS systems. It provides eight channels of current input, enabling precise acquisition of process signals from field transmitters such as pressure, flow, and level instruments.
Engineered for flexibility and accuracy, the 1734-IE8C supports 0–21 mA input ranges with high-resolution conversion, making it suitable for critical process monitoring applications. Its compact modular design allows seamless integration into POINT I/O systems, reducing panel space and simplifying wiring. With built-in diagnostics and channel-level monitoring, this module enhances system reliability and simplifies maintenance in industrial automation environments.
3. Technical Specifications
- Brand: Allen-Bradley
- Model: 1734-IE8C
- Warranty: One Year
- Condition: 100% New & Original
Detailed Specifications:
- Product Type: Analog Input Module (POINT I/O)
- Input Channels: 8 single-ended analog inputs
- Input Signal Range: 0–21 mA (supports standard 4–20 mA loops)
- Resolution: 16-bit high-resolution conversion
- Accuracy: Approx. ±0.1% full scale
- Conversion Method: Delta-sigma A/D conversion
- Input Impedance: ~60 Ω
- Power Supply: 24 V DC
- Diagnostics: Channel-level diagnostics and alarming
- Operating Temperature: -20°C to +55°C
- Mounting: DIN rail (POINT I/O system)
- Dimensions: Approx. 80 × 59 × 17 mm
- Weight: ~0.05 kg
4. Key Features & Benefits
- 8-Channel High-Density Input:
Enables efficient acquisition of multiple analog signals in a compact footprint, reducing panel space and system cost. - High-Resolution Signal Conversion:
16-bit resolution ensures precise measurement of process variables, improving control accuracy in critical loops. - Advanced Diagnostics & Alarming:
Channel-level diagnostics and built-in alarms help detect faults early, reducing downtime and maintenance effort. - Flexible Integration (POINT I/O):
Designed for distributed architectures, allowing easy expansion and seamless integration with Logix-based PLC systems. - Robust Industrial Performance:
Operates reliably in harsh environments with stable signal acquisition and strong noise immunity.
5. Application Scenarios
- Process Industries (Oil & Gas / Chemical):
Acquires signals from transmitters for pressure, flow, and level monitoring in continuous processes. - Manufacturing Automation:
Used in distributed I/O systems for machine monitoring and process control in production lines. - Water & Wastewater Systems:
Interfaces with field sensors to monitor tank levels, flow rates, and treatment processes.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the 1734-IE8C?
A: The 1734-IE8C collects analog current signals (typically 4–20 mA) from field devices and converts them into digital data for PLC processing. - Q: Is 1734-IE8C compatible with legacy systems?
A: Yes, it supports standard 4–20 mA signals, making it compatible with most legacy instrumentation while integrating seamlessly into modern POINT I/O systems.



