Allen-Bradley 1756-IB16I ControlLogix Digital Input Module
$123.00
$320.00
Description
Product Description
The 1756-IB16I is a high-isolation DC digital input module designed for ControlLogix systems. Developed by Allen-Bradley, this module provides 16 independently isolated input channels, ensuring reliable signal acquisition in electrically noisy industrial environments.
Each input channel operates within a 10–30V DC range and is electrically isolated from other channels as well as the backplane. This architecture significantly reduces the risk of signal interference and ground loop issues, making the 1756-IB16I suitable for critical monitoring applications.
The module supports flexible input filtering and fast response times, allowing it to adapt to both high-speed and noise-prone signal conditions.
Key Functional Characteristics
-
16 individually isolated DC input channels
-
Wide input voltage range suitable for 24V DC systems
-
Independent channel isolation to minimize electrical interference
-
Configurable input filter times for noise suppression
-
Fast signal response with low latency
-
Compatible with multiple removable terminal block options
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | 1756-IB16I |
| Product Type | DC Digital Input Module |
| Product Family | ControlLogix |
| Number of Inputs | 16 (individually isolated) |
| Input Voltage Range | 10–30 V DC |
| Nominal Input Voltage | 24 V DC |
| Input Type | Sink/Source compatible |
| ON-State Current | 2 mA @ 10 V DC (min), 10 mA @ 30 V DC (max) |
| OFF-State Current | Max. 1.5 mA |
| Signal Delay (ON) | ≤ 1 ms + selectable filter (0, 1, 2 ms) |
| Signal Delay (OFF) | ≤ 4 ms + selectable filter (0, 1, 2, 9, 18 ms) |
| Input Filtering | User-configurable per channel group |
| Update Time | 200 µs to 750 ms |
| Backplane Current | 100 mA @ 5.1 V DC; 3 mA @ 24 V DC |
| Backplane Power | Approx. 0.58 W |
| Power Dissipation | Max. 5 W @ 60°C |
| Thermal Dissipation | Approx. 17.05 BTU/hr |
| Isolation Voltage | 250 V continuous (input-to-input and input-to-backplane) |
| Terminal Blocks | 1756-TBCH, 1756-TBS6H (compatible RTBs) |
| Mounting | ControlLogix chassis |
| Operating Temperature | 0°C to 60°C |
| Enclosure | Open-style (panel installation required) |
| Weight | 0.4 lb |
Application Scenarios
The 1756-IB16I is commonly used in systems where input signal integrity is critical, such as process control, safety monitoring, and high-noise industrial environments. Typical applications include sensor feedback, limit switch monitoring, and status signal acquisition in large-scale automation systems.
Its individually isolated channels make it especially suitable for installations where signals originate from different ground potentials or remote field devices.
FAQ
What is the benefit of individual channel isolation?
Each input is electrically separated, preventing faults or noise on one channel from affecting others, which improves system reliability.
Can this module accept both sinking and sourcing inputs?
Yes, the 1756-IB16I supports both sink and source input configurations.
What terminal blocks are required?
It is compatible with removable terminal blocks such as 1756-TBCH and 1756-TBS6H.
Is this module suitable for high-speed inputs?
Yes, with a minimum update time of 200 µs and configurable filtering, it can handle relatively fast input signals.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
Featured
Complementary products
Express Delivery
Fast shipping for your urgent needs.
Large Inventory
Extensive stock ensures quick availability.
Premium Quality
Genuine, high-grade PLC & DCS components.
24/7 Customer Support
Reliable service for clients worldwide.