1756-IM16I Allen Bradley Rockwell ControlLogix Digital I/O Module

Product parameters

Input channel:

Number: 16 digital input channels, each channel isolated (individually isolated).

Input type: AC digital input.

Voltage category: 240V AC.

Working voltage range: 159-265V AC, 47-63 Hz.

Nominal input voltage: 240V AC, 50/60 Hz.

Isolation: 250V (continuous), Basic Insulation Type, input-to-backplane isolation and input-to-input (between channels) isolation.

Electrical characteristics:

Open-state current

Minimum 5 mA @ 159V AC, 60 Hz.

Maximum 13 mA @ 265V AC, 60 Hz.

Closed-state characteristics:

Maximum voltage: 40V AC.

Maximum current: 2.5 mA.

Surge current: Peak value of up to 250 mA, duration decays to below 37% within 22 ms without activation.

Backplane current

5.1V DC: 100 mA.

24V DC: 3 mA.

Total backplane power: 0.58W.

Power dissipation: Maximum 5.8W at 60°C.

Heat dissipation: 19.78 BTU/ hour at 60°C.

Input delay time:

OFF to ON

Hardware delay: Nominal 10 ms (maximum value depends on the filtering time).

Users can configure the filtering time: 1 or 2 ms.

ON to OFF

Hardware delay: Nominal 8 ms (the maximum value depends on the filtering time).

Users can configure the filtering time: 9 or 18 ms.

Physical properties:

Installation method: Rack-mounted, compatible with ControlLogix racks (such as 1756-A4, A7, A10, A13, A17).

Terminal block: Compatible with detachable terminal blocks (RTB), such as 1756-TBCH (36-pin screw terminal) or 1756-TBS6H (36-pin spring clip terminal).

Pre-wired cables: Support Bulletin 1492 pre-wired cables (such as 1492-IFM40F, 1492-IFM40D120A-2).

Enclosure type: Open type (IP20 protection grade).

Display: The front panel of the module is equipped with 16 LED indicator lights for input status (yellow indicates input activation), as well as an OK status indicator light (green indicates normal, flashing red indicates communication issues, and red indicates module failure).

Environmental conditions:

Operating temperature: 0°C to 60°C

Storage temperature: -40°C to 85°C.

Relative humidity: 5% to 95% (non-condensing).

Vibration: 2G (10-500 Hz).

Operating impact: 30G.

Non-operational impact: 50G.

Surge immunity: The signal port can withstand surges from 2 kV lines to ground.

Certification:

Compliant standards: CE, UL, CSA, C-Tick, CCC, KC, MARINE, RCM.

Programming and Configuration

Compatible software: Studio 5000 Logix Designer (formerly RSLogix 5000), used for module parameter setting, configuration of Change of State (COS), and adjustment of input filtering time.

Function

Independent isolation channel

Each input channel is independently isolated (250V isolation, input to the backplane and input to input), ensuring that the failure of one channel does not affect the others, making it suitable for high-reliability scenarios.

Supports AC input signals (159-265V AC), and is compatible with 240V AC industrial standard power supplies.

Flexible communication format:

Support multiple data formats:

Standard input data format: Return fault and input data.

CST timestamp input data format: Returns input data and change timestamp, suitable for sequential events (SOE) applications.

Rack-optimized data format: Collect digital word data from remote racks and convert it into rack images.

Only listen in mode (including standard, CST timestamp and rack-optimized format).

Supports EtherNet/IP or ControlNet networks, adopts Producer/Consumer technology, and shares input information with the ControlLogix controller.

State Change (COS) function: Supports user-configured state change (Change of State). When the state of the input signal changes, it immediately triggers logical execution, bypassing the normal scanning cycle of the processor, and is suitable for applications with rapid response.

Status monitoring

Equipped with LED diagnostic indicator lights:

OK indicator light: Green indicates normal operation, flashing red indicates communication issues, and red indicates that the module needs to be replaced.

16 input status indicator lights: Yellow indicates input activation.

Support user-configurable filtering time (1, 2, 9 or 18 ms), optimize input signal processing to meet noise reduction requirements.

Modular design

Supports RIUP, Removal and Insertion Under Power, which is convenient for maintenance and replacement.

Connect the on-site wiring through the RTB (1756-TBCH or 1756-TBS6H) or 1492 interface module (IFM) to simplify the installation.

Support Electronic Keying to prevent incorrect module replacement.

Support multiple input devices:

Compatible with a variety of AC input devices, such as buttons, limit switches, relay contacts, etc., it is suitable for 240V AC systems.

If DC signals are to be used, appropriate intermediate circuits need to be installed.

High reliability

The independent isolation design reduces the risk of electrical interference and enhances system stability.

The design meets the requirements of industrial environments, is resistant to high temperatures, high humidity and vibration, and is suitable for harsh environments.

Application scenarios

Manufacturing industry: It is used to monitor AC digital signals on production lines, such as the status of buttons, limit switches or relays, and is suitable for automotive manufacturing, packaging lines or electronic assembly.

Process control

It is applied in the chemical, petroleum and natural gas, pharmaceutical and food and beverage industries to monitor the status of switches or valves powered by AC.

Independent isolation channels are suitable for process control systems that require high reliability and no interference between channels.

Safety interlock: In the safety system, it detects the status of the emergency stop button or safety relay, triggers a safety shutdown or interlock operation, and independently isolates to ensure the reliability of the signal.

Sequential Event Recording (SOE) : Supports the CST timestamp data format and is suitable for applications that require recording the sequence of events, such as power systems or critical mission monitoring.

Distributed control system: Integrated into the distributed I/O system via EtherNet/IP or ControlNet network, it is suitable for large factories or remote monitoring applications, such as the PlantPAx DCS platform.

Traditional system maintenance: 1756-IM16I is often used for the maintenance or expansion of existing ControlLogix systems, especially suitable for scenarios that require AC input and independent isolation.

Advantage Products:

All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the other conditions are needed, Used, Open-box, Refurbished, etc.

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