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The Allen Bradley 1734-IB8 is an 8-channel digital input module designed for distributed control systems. It is used to collect discrete input signals from field devices and transmit them through a POINT I/O backplane to a central controller.
This module is designed for 24V DC signal input and supports typical industrial devices such as proximity sensors, pushbuttons, limit switches, and auxiliary contacts. With eight input points in a compact form, it offers a practical balance between channel density and installation space.
The module is mounted on a terminal base and works together with a communication adapter, forming part of a scalable and modular distributed I/O system.
The POINT I/O series provides a flexible and modular approach to distributed automation, allowing users to build systems with precisely the number and type of I/O channels required.
| Parameter | Specification |
|---|---|
| Model | 1734-IB8 |
| Module Type | Digital Input |
| Number of Inputs | 8 |
| Input Voltage | 24V DC |
| Voltage Range | 10–28.8V DC |
| Input Type | Sinking |
| Input Current | Approx. 3–5 mA per channel |
| Input Filter Time | Typical 0.5 ms (configurable) |
| Backplane Current | Approx. 75 mA @ 5V DC |
| Power Dissipation | Approx. 1.5–1.6 W |
| Isolation | Channel-to-backplane isolation |
| Indicators | 8 × Input LEDs + module status LED |
| Wiring Category | Low voltage discrete signals |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5–95% non-condensing |
| Mounting | DIN Rail (via terminal base) |
| Enclosure | Open-style |
| Dimensions | Approx. 56 × 12 × 75.5 mm |
| Weight (kg) | Approx. 0.03–0.035 kg |
The 1734-IB8 provides eight independent digital input channels, allowing multiple signals to be monitored within a single compact module.
It supports configurable input filtering, enabling adjustment of signal response time for different applications.
Each channel includes a dedicated LED indicator, making it easy to identify signal status during operation or maintenance.
The module is designed for seamless integration into POINT I/O systems, supporting flexible system expansion.
Its compact structure makes it suitable for high-density installations in control panels or distributed field applications.
The 1734-IB8 is commonly used in industrial automation systems where multiple discrete inputs must be monitored:
It is especially suitable for applications where a higher number of input channels is required without increasing system size.
High Channel Density
Eight input channels reduce the number of modules required in a system.
Compact Design
Optimized for space-saving installations.
Flexible Configuration
Adjustable input filtering supports different signal types and response needs.
Reliable Operation
Designed for stable performance in industrial environments.
Easy Diagnostics
LED indicators provide immediate feedback for troubleshooting.
Scalable Integration
Easily combined with other modules in distributed I/O systems.
| Model | Type | Channels | Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1734-IB8 | Digital Input | 8 In | 24V DC | 56×12×75.5 | 0.033 |
| 1734-IB4 | Digital Input | 4 In | 24V DC | 56×12×75.5 | 0.035 |
| 1734-IB2 | Digital Input | 2 In | 24V DC | 56×12×75.5 | 0.03 |
| 1734-IB8D | Digital Input (Diag) | 8 In | 24V DC | 56×12×75.5 | 0.04 |
| 1734-OB8 | Digital Output | 8 Out | 24V DC | 56×12×75.5 | 0.04 |
| 1734-AENT | Ethernet Adapter | N/A | 24V DC | 133×56×79.8 | 0.30 |
| Model | Type | Key Function | Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1769-L33ER | PLC Controller | Compact controller | 24V DC | 118×87×87 | 0.50 |
| 1756-L81E | PLC Controller | High-performance controller | 24V DC | 175×90×140 | 0.65 |
| 1756-EN2T | Communication | Ethernet module | 24V DC | 145×35×140 | 0.30 |
| 1734-AENTR | Adapter | Ethernet I/O adapter | 24V DC | 56×12×75.5 | 0.04 |
| 5069-IB16 | Digital Input | 16-point input | 24V DC | 138×42×95 | 0.25 |