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The Allen Bradley 1734-IV8 is an 8-channel DC digital input module designed for distributed industrial automation systems. It belongs to a modular I/O architecture that enables signal collection at the field level, reducing wiring complexity and improving overall system efficiency.
This module is specifically designed for 24V DC input signals, which are standard in most industrial control environments. It is typically used to monitor the status of field devices such as proximity sensors, limit switches, pushbuttons, and other discrete input devices.
The 1734-IV8 installs onto a POINT I/O terminal base and communicates through a backplane to a network adapter. This structure allows seamless integration into a distributed control system, providing flexibility and scalability. Its higher channel density makes it particularly suitable for applications requiring multiple input points within a compact footprint.
The POINT I/O series is designed for flexible distributed control systems, offering a wide range of modules for different signal types and application needs.
| Parameter | Specification |
|---|---|
| Model | 1734-IV8 |
| Module Type | Digital Input (DC) |
| Number of Inputs | 8 |
| Input Voltage | 24V DC nominal |
| Voltage Range | 10–30V DC |
| Input Current | Approx. 3–5 mA per channel |
| Input Type | Sourcing input |
| Input Delay | Approx. 8–12 ms |
| Backplane Current | Approx. 75 mA @ 5V DC |
| Power Dissipation | Approx. 1.2 W |
| Isolation | Channel-to-backplane isolation |
| Indicators | 8 input LEDs + module status LED |
| Wiring Category | DC 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. 0.04 kg |
The 1734-IV8 provides eight independent DC input channels, allowing multiple field devices to be monitored simultaneously within a single module.
It supports standard 24V DC signals, ensuring compatibility with widely used industrial sensors and control components.
Each input channel is equipped with an LED indicator, providing clear and immediate feedback on signal status for easier troubleshooting and maintenance.
The module integrates seamlessly into distributed I/O architectures, supporting system scalability and flexible configuration.
Its compact design allows efficient use of panel space, making it suitable for both centralized and field-mounted installations.
The 1734-IV8 is commonly used in industrial automation systems that require reliable DC input monitoring:
It is particularly useful in applications where a higher number of input signals must be handled within a limited installation area.
High Channel Density
Eight input channels reduce the number of modules required, saving space and cost.
Standard Industrial Compatibility
Supports widely used 24V DC signals.
Reliable Performance
Designed for stable operation in demanding industrial environments.
Simplified Diagnostics
LED indicators provide quick and clear status information.
Flexible Integration
Fully compatible with other modules in the POINT I/O system.
Compact Design
Optimizes panel space and supports distributed installations.
| Model | Type | Channels | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1734-IV8 | Digital Input | 8 | DC | 56×12×75.5 | 0.04 |
| 1734-IV4 | Digital Input | 4 | DC | 56×12×75.5 | 0.035 |
| 1734-IB8 | Digital Input | 8 | DC | 56×12×75.5 | 0.033 |
| 1734-OB8 | Digital Output | 8 | DC | 56×12×75.5 | 0.04 |
| 1734-IE8C | Analog Input | 8 | Current | 75.5×12×56 | 0.05 |
| 1734-AENT | Adapter | N/A | — | 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-channel input | 24V DC | 138×42×95 | 0.25 |