1756-IF8I Allen Bradley Rockwell Analog Input Module

Product parameters

Product model: 1756-IF8I

Type: Analog Input Module (Isolation, Current/Voltage)

Input points: 8 independent isolation channels

Input signal range:

Voltage: ±10.5V, 0-10.5V, 0-5.25V

Current: 0-21 mA

Resolution: 24 bits

Voltage: ±10.5V (1.49 µV/count), 0-10.5V (1.49 µV/count), 0-5.25V (1.49 µV/count)

Current: 0-21 mA (2.99 nA/count)

Input impedance:

Voltage: >10 MΩ

Current: 249 Ω

Power dissipation: Maximum 3.7W at 60°C

Heat dissipation: 12.62 BTU/hr at 60°C

Conversion method: Sigma-Delta

Data format: IEEE 32-bit floating-point number (left-aligned, 2's complement)

Scanning time:

Single-ended connection: 16-488 ms

Differential connection (4 points) : 8-244 ms

High-speed differential connection (2 points) : 5-122 ms

Isolation voltage:

Channel-to-channel: 250V (continuous), test voltage 1350V AC, for 2 seconds

Channel to backplane: 250V (continuous), test voltage 1350V AC, lasting for 2 seconds

Overvoltage protection

Voltage: ±30V DC

Current: ±8V DC

Wire size: 0.33-2.1 mm² (22-14 AWG, solid or twisted shielded copper wire)

Connector: 36-pin removable terminal block (RTB, such as 1756-TBCH or 1756-TBS6H)

Operating temperature range: 0-60°C (32-140°F)

Working humidity: 5-95% (no condensation)

Impact rating: 30G

Vibration level: 2G @ 10-500 Hz

Installation method: Install on ControlLogix racks (compatible with 1756-A4, A7, A10, A13, A17)

Certification: CE, CSA, UL, KC, MARINE, RCM, in compliance with CISPR Class 11 A emission standards

Temperature code: T4 (North American and ATEX standards)

Shell type: Open Enclosure

UPC: 10885630245406

Function

High-precision analog input

It provides 8 independently isolated analog input channels, supporting voltage (±10.5V, 0-10.5V, 0-5.25V) and current (0-21mA) signals, and is suitable for 2-wire and 4-wire transmitters.

The 24-bit resolution offers extremely high signal accuracy, far exceeding the standard 13-16-bit modules, making it suitable for high-precision measurements.

Channel isolation

Each channel is independently isolated (channel-to-channel, channel-to-backplane), enhancing noise resistance and system reliability, and is suitable for complex electromagnetic environments.

Diagnostic function:

Supports overvoltage/overcurrent protection, short circuit detection, and module temperature range error detection.

Provide data alarm functions, such as Ramp Rate alarm, process alarm, over-range/under-range detection, and disconnection detection.

Flexible wiring method:

Supports single-ended, differential and high-speed differential wiring to meet different application requirements.

Single-ended wiring maximizes channel utilization, differential wiring enhances noise resistance, and high-speed differential wiring provides the fastest data update (but only uses one out of every four channels).

Network integration

Communicate with the ControlLogix controller via ControlNet or EtherNet/IP network, supporting local or distributed I/O architecture.

Supports hot plugging (RIUP), which is convenient for maintenance and replacement.

Software configuration:

Configuration is carried out using Studio 5000 software, which supports functions such as real-time sampling, digital filtering, and multiple input range selection.

The data is stored in IEEE 32-bit floating-point registers and is compatible with multiple control systems (such as HMI, SCADA, DCS).

Internal circuit power supply

Support internal Loop Power supply (Loop Power) to simplify the wiring and configuration of 2-wire transmitters.

Application scenarios

Process control

In the petrochemical, oil refining, pharmaceutical or water treatment industries, it is used to collect analog signals from pressure, temperature, flow or level transmitters.

The high-resolution and isolated design ensures precise measurement and is suitable for critical process control.

Industrial Automation

It is used in automated production lines in manufacturing to monitor the analog output of sensors and transmitters, such as motor current, vibration sensors or liquid level sensors.

Channel isolation reduces signal interference and is suitable for environments with high electromagnetic noise, such as heavy industrial factories.

Data Acquisition System

In test and measurement applications, high-precision analog signals are collected for use in laboratory equipment or industrial test platforms.

Supports real-time sampling and data alarm, suitable for data collection tasks that require rapid response.

Distributed control system

Through ControlNet or EtherNet/IP networks, the module can be integrated into large-scale distributed control systems as a remote I/O component, and is suitable for factory automation or cross-regional control.

High-reliability scenarios:

The channel isolation and diagnostic functions make it suitable for scenarios with high reliability requirements, such as power systems, aerospace or critical infrastructure.

Overvoltage protection and short-circuit detection reduce the risk of system failures.

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.

Many Available just wait for you, feel free to ask to get better deal!!!

Bou L(Sales Manager)            

Tel:+86-175 5077 6091                                                                                              

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Tina(Sales Specialist)       

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Doris(Sales Specialist)       

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