The Allen Bradley 1771-IVN is a PLC-5 series 32-point DC digital input module designed for the 1771 I/O platform. It is engineered to monitor multiple 24V DC field signals simultaneously, providing efficient signal acquisition for large-scale industrial automation systems.
With its high-density channel design, the module helps reduce cabinet space requirements while improving wiring efficiency in PLC-5 control architectures.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Catalog Number | 1771-IVN |
| Module Type | DC Digital Input Module |
| System Family | PLC-5 / 1771 I/O |
| Input Channels | 32 inputs |
| Input Voltage Range | 10–30V DC |
| Nominal Input Voltage | 24V DC |
| Input Configuration | Sink/source compatible (application dependent) |
| On-State Voltage | ≥10V DC |
| Off-State Voltage | ≤5V DC |
| Input Delay | Standard industrial filtering |
| Backplane Current Draw | ~280 mA @ 5 V DC |
| Isolation | Optical isolation per group |
| Wiring Arm | 1771-WN |
| Mounting Type | 1771 chassis slot |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Weight | ~0.40 kg |
| Dimensions (L×W×H) | 150 mm × 260 mm × 30 mm |
System Role Overview
The 1771-IVN module is designed for high-density digital signal monitoring within PLC-5 systems. It converts multiple DC input signals into logic-level data that can be processed by the PLC processor.
Core functions include:
- Multi-point DC signal acquisition
- Monitoring of industrial sensors and switches
- Electrical isolation between field wiring and PLC backplane
- High-density I/O integration for large systems
- Stable signal processing in industrial environments
It is commonly used in automation systems requiring efficient large-scale input handling.
Recommended Related Modules
| Model | Function |
|---|---|
| 1771-IBD | 16-point DC input module |
| 1771-IBN | High-density DC input module |
| 1771-IAD | AC input module |
| 1771-OBD | DC output module |
| 1771-OWNA | Relay output module |
| 1771-ASB | Remote I/O adapter |
Popular Allen Bradley PLC-5 Modules
| Model | Function |
|---|---|
| 1785-L40B | PLC-5 processor |
| 1771-A4B | 16-slot I/O chassis |
| 1771-DMC | Data Highway communication module |
| 1771-SN | I/O scanner module |
| 1771-ALX | Local I/O adapter module |
