Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The Allen-Bradley 1756-IB16D is a diagnostic digital input module designed for ControlLogix industrial automation systems. It is used to monitor DC digital input signals from industrial field devices while providing advanced diagnostic capabilities for improved system reliability and fault detection.
This module supports real-time monitoring of sensors, switches, and other discrete input devices, helping automation systems identify wiring issues, signal faults, and abnormal operating conditions in industrial environments.
| Parameter | Details |
|---|---|
| Product Type | Diagnostic Digital Input Module |
| Manufacturer | Allen-Bradley |
| Model | 1756-IB16D |
| Series | ControlLogix |
| Input Type | Digital DC input |
| Number of Inputs | 16 channels |
| Diagnostic Features | Input and wiring diagnostics |
| Signal Type | DC discrete signals |
| Application | Industrial monitoring and fault detection |
| Compatibility | ControlLogix systems |
| Mounting Type | Chassis-mounted |
| Operating Environment | Industrial automation environments |
| Dimensions | 144.57 × 22 × 105.42 mm |
| Weight | 0.15 kg |
| Housing | Industrial-grade module enclosure |
The 1756-IB16D module receives DC digital signals from field devices and converts them into data for processing by the ControlLogix controller. In addition to normal input monitoring, the module continuously performs diagnostic checks on signal conditions and wiring integrity.
The diagnostic functions help detect abnormal conditions such as signal loss, wiring faults, or unexpected input behavior, improving maintenance efficiency and system reliability.
This enables:
The 1756-IB16D module is used in industrial automation systems where both digital input monitoring and diagnostic functionality are important. It supports:
It helps improve operational reliability by providing continuous monitoring and fault detection for connected field devices.
| Model | Description |
|---|---|
| 1756-IB16 | Standard DC digital input module |
| 1756-IB32 | 32-point DC digital input module |
| 1756-IA16 | AC digital input module |
| 1756-OB16D | Diagnostic digital output module |
| ControlLogix I/O modules | Industrial signal interface modules |
The Allen-Bradley 1756-IB16D ControlLogix Diagnostic Input Module is a reliable industrial automation component designed for digital signal monitoring and advanced diagnostic applications. Its integrated fault detection capability and compatibility with ControlLogix systems make it suitable for industrial environments requiring improved operational reliability and efficient maintenance support.