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Allen Bradley 1756-IV32 ControlLogix Sourcing Input Module
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Product Introduction
The Allen Bradley 1756-IV32 ControlLogix Sourcing Input Module is a high-density digital input module designed for the ControlLogix automation platform. This 32-point module is divided into two groups of 16 points, providing reliable and electrically isolated digital input acquisition for industrial control systems.
The IV32 module is optimized for sourcing input applications, where the module supplies the positive voltage to detect input states from external devices such as switches, sensors, and pushbuttons. Its compact design allows efficient use of ControlLogix chassis slots, while its electrical isolation ensures protection against signal interference, ground loops, and transient voltage spikes.
This module is widely used in manufacturing, process automation, and material handling systems, where fast, deterministic digital input monitoring is required for safety, control, and sequencing operations.
Product Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-IV32 |
| Manufacturer | Allen Bradley |
| Product Type | Sourcing Digital Input Module |
| System Compatibility | ControlLogix Platform |
| Number of Points | 32 digital input points (2 groups of 16) |
| Input Type | Sourcing digital inputs |
| Voltage Range | 10–30 VDC |
| Nominal Input Current | 3.5 mA per point |
| Backplane Current @ 5V | 120 mA |
| Electrical Isolation | Group-to-group and group-to-backplane isolation |
| Response Time | Fast digital input acquisition suitable for real-time control |
| Mounting Type | ControlLogix chassis backplane |
| Dimensions | 145.2 x 34.6 x 139.6 mm |
| Weight | 0.45 kg |
Applications
● Monitoring industrial digital signals such as switches, limit sensors, and proximity devices.
● Integrated into ControlLogix systems for deterministic real-time control.
● Supports safety, sequencing, and logic operations in automated production lines.
● Used in process industries to acquire status information from pumps, valves, and actuators.
● Suitable for applications requiring high-density digital inputs in a single module.
● Ideal for factory automation and material handling systems where fast input acquisition is critical.
Advantages
● Provides 32 high-density digital inputs in a compact module for efficient chassis usage.
● Sourcing input configuration ensures consistent voltage detection from external devices.
● Electrically isolated groups protect the system from interference and ground faults.
● Compatible with ControlLogix architecture for real-time and deterministic control.
● Fast response times allow rapid detection of state changes for critical control processes.
● Compact and lightweight design simplifies installation and maintenance in industrial cabinets.
FAQ
1. How many input points does the 1756-IV32 module provide?
It provides 32 digital input points, divided into two groups of 16 points each.
2. What voltage range do the inputs support?
The module accepts digital input voltages from 10 to 30 VDC.
3. Is the module electrically isolated?
Yes, each group is isolated from each other and from the backplane to prevent interference.
4. What type of digital input does the module require?
It is a sourcing input module, providing positive voltage to detect input states.
5. What is the nominal current per input point?
Each point draws approximately 3.5 mA during operation.
6. What is the backplane current consumption?
The module draws 120 mA at 5 VDC from the ControlLogix backplane.
7. Can the module detect fast-changing signals?
Yes, it is designed for fast digital input acquisition suitable for real-time control applications.
8. Can multiple modules be installed in the same chassis?
Yes, multiple IV32 modules can be installed to expand input capacity.
9. Is the module suitable for safety applications?
Yes, when used in conjunction with appropriate safety logic, it can support monitoring of safety-related signals.
10. What types of devices can be connected to the inputs?
Switches, limit sensors, proximity sensors, pushbuttons, and other 10–30 VDC digital devices can be connected.
Related Models
| Model | Description | Key Technical Data |
|---|---|---|
| 1756-IV16 | ControlLogix Sourcing Input Module | 16-point digital input module |
| 1756-IA16 | Analog Input Module | 16-channel voltage/current input |
| 1756-IB32 | Digital Input Module | 32-channel isolated input |
| 1756-OB32 | Digital Output Module | 32-channel output module |
| 1756-EN2T | ControlLogix Ethernet Module | Network communication interface |
| 1756-L73 | ControlLogix CPU Module | High-performance processor module |
Popular Models
| Model | Product Type | Key Features |
|---|---|---|
| 1756-IF16 | Analog Input Module | 16-channel voltage/current input |
| 1756-OB16 | Digital Output Module | 16-channel output with isolation |
| 1756-IB16 | Digital Input Module | 16-channel isolated input |
| 1756-EN2T | Ethernet Communication Module | Network connectivity for ControlLogix |
| 1756-L73 | ControlLogix CPU Module | High-performance processor module |
| 1756-PA75 | Power Supply Module | Redundant/regulated power for chassis |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
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