The 1756-IV32 Digital Input Module is a high-density discrete input component within the ControlLogix platform from Rockwell Automation. It is engineered to capture fast, reliable field signals from sensors, switches, and industrial devices in demanding automation environments.
Designed for scalable ControlLogix architectures, this module delivers stable 32-point input acquisition with excellent electrical isolation and robust industrial durability. It is widely used in production lines where signal accuracy and response speed directly impact operational efficiency.
Technical Specifications (Including Dimensions & Weight)
| Parameter | Specification |
|---|---|
| Model | 1756-IV32 |
| Module Type | Digital DC Input Module |
| Input Points | 32 channels (16 per group) |
| Input Voltage Range | 10–30 VDC (12/24V nominal) |
| Input Type | Sourcing DC inputs |
| Backplane Current | ~120 mA @ 5.1 VDC |
| Power Dissipation | ~4.1 W @ 60°C |
| Isolation | 250V continuous (group isolation) |
| Wiring System | 1756-TBCH / 1756-TBS6H RTB |
| Update Time | ~200 µs to 750 ms configurable |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5%–95% non-condensing |
| Dimensions (H × W × D) | 13.3 × 3.8 × 14.5 cm |
| Weight | ~0.5 kg |
The module is designed with a compact single-slot width, making it efficient for high-density cabinet configurations.
Recommended Related Models
For system expansion or maintenance, these modules are commonly paired with the 1756-IV32:
- 1756-OB32 Digital Output Module
- 1756-IA32 AC Input Module
- 1756-EN2T EtherNet/IP Communication Module
- 1756-PA75 Power Supply Module
- 1756-TBCH Terminal Block Assembly
Popular Allen-Bradley ControlLogix I/O Modules
Within the same ecosystem, engineers frequently use:
- 1756-L7x Series Controllers (CPU modules)
- 1756-IB16 / IB32 DC Input Modules
- 1756-OB16E / OB32E Output Modules
- 1756-IF8 Analog Input Module
- 1756-OF8 Analog Output Module
These modules form the backbone of modular ControlLogix automation systems used worldwide.
