1756-IA32 Allen Bradley Rockwell ControlLogix Digital I/O Module

Product parameters

Input channel:

Quantity: 32 digital input channels, divided into 2 groups, with 16 channels in each group.

Input type: AC digital input.

Voltage range: 74-132V AC, frequency 47-63 Hz.

Nominal input voltage: 120V AC, 50/60 Hz.

Isolation: Inter-group isolation (16 channels per group), input to backplane isolation, no inter-channel isolation.

Electrical characteristics:

Open-state current

Maximum 15 mA @ 132V AC.

Minimum 5 mA @ 74V AC.

Closed-state characteristics:

Maximum voltage: 20V AC.

Maximum current: 2.5 mA.

Surge current: Maximum 390 mA, duration decays to below 37% within 22 ms without activation.

Backplane current

5.1V DC: 165 mA.

24V DC: 2 mA.

Total backplane power: 0.9W.

Power dissipation: Maximum 6.1W at 60°C.

Heat dissipation: 20.8 BTU/ hour at 60°C.

Isolation voltage: 250V AC (continuous), basic insulation type, input to the backplane and isolation between groups.

Input delay time:

OFF to ON

Hardware latency: Nominal 1.5ms, maximum 10ms.

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

ON to OFF

Hardware latency: Nominal 1 ms, maximum 8 ms.

Users can configure the filtering time: 9 ms 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 (1492-IFM40F, 1492-IFM40D120A-2, 1492-IFM40F-2).

Enclosure type: Open type (IP20 protection grade).

Display: The front panel of the module has LED indicator lights for input, communication status and module health status.

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: CCC, CE, CSA, KC, MARINE, NRTL, RCM, UL.

Programming and Configuration

Compatible software: Studio 5000 Logix Designer, used for module parameter setting and programming.

Function

High-density input: It offers 32 input channels, making it suitable for applications that require monitoring a large number of digital signals. Compared with the 1756-IA16I (16 channels, with inter-channel isolation), the 1756-IA32 has a higher channel density but no inter-channel isolation, making it suitable for general input requirements.

Flexible communication format:

Support multiple data formats:

Standard input data format: Only return fault and input data.

CST timestamp input data format: Return the input data and the changed timestamp.

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).

Input information and output status can be shared with the ControlLogix controller via EtherNet/IP or ControlNet network.

Diagnosis and Status Monitoring

It is equipped with LED diagnostic indicator lights to display the module status, input status and communication health status, facilitating on-site fault investigation.

Support user-configurable filtering time, optimize input signal processing, and adapt to different response speed requirements.

Modular design

The on-site wiring is connected through detachable terminal blocks (RTB) or 1492 interface modules (IFM), which is convenient for installation and maintenance.

Supports rack-mounted installation and can be integrated into local or distributed ControlLogix racks.

Support multiple input devices:

Compatible with a variety of AC input devices, such as buttons, limit switches, proximity sensors, etc., and supports sinking/sourcing configuration.

High reliability

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

Inter-group isolation ensures that even if one group of channels fails, the other group can still work normally.

Application scenarios

Manufacturing industry: It is used to monitor digital signals on production lines, such as the status of buttons, sensors and switches, and is suitable for high-density input scenarios such as automotive manufacturing and electronic assembly.

Process control: Applied in the chemical, oil and gas, pharmaceutical and food and beverage industries, it monitors the on/off status of valves, pressure switches or other process equipment.

It is suitable for scenarios that require rapid reading of digital input, such as process status detection.

Machine status monitoring: It is used to read the status of limit switches, buttons or proximity sensors, track the operating status of equipment, and ensure the smooth operation of the production line.

Safety interlock: Detect the status of the emergency stop button or safety sensor in the safety system to trigger a safety interlock or stop the operation.

Counting application: It is used for counting objects passing through sensors, such as product counting on packaging lines, and is suitable for high-frequency input signal processing.

Distributed control system: Integrated into distributed I/O systems via EtherNet/IP or ControlNet networks, it is suitable for large factories or remote monitoring applications.

Traditional system maintenance: 1756-IA32 is often used for the maintenance or expansion of existing ControlLogix systems, especially suitable for scenarios that require high-density input but do not need isolation between channels.

Advantage Products:

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