1756-IF16IH Allen Bradley Rockwell Analog Input Module

Product parameters

Module type:

ControlLogix analog input module with HART protocol interface.

16-channel isolated current input module, each channel equipped with an independent HART modem.

Input signal range:

Current input: 0-20 mA or 4-20 mA.

Resolution:

16 to 21 bits, providing high-precision signal conversion.

Number of input channels:

16 isolated differential input channels, supporting HART communication.

Analog-to-digital Conversion (ADC)

The Sigma-Delta conversion method (24-bit converter) is adopted.

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

Isolation and Protection

Isolation voltage: 250V (continuous), providing isolation between channels and enhancing anti-interference capability.

Input overvoltage protection: up to 28.8V DC.

Input impedance: 250 Ω ± 5 Ω.

Common-mode noise suppression: >90 dB (50-60 Hz).

Power consumption and power supply:

Backplane current: 225 mA @ 5.1V DC, 200 mA @ 24V DC.

Surge current: 400 mA @ 5.1V DC, 450 mA @ 24V DC.

Power dissipation: 5.30W.

Calibration and Drift

Calibration accuracy: 0.15%-1.5% of full scale at 25°C (when HART is disabled).

Input offset drift: 300 µA/°C.

Gain drift: 20 ppm/°C.

Calibration cycle: 12 months.

Disconnection detection

For the range of 4-20 mA, the disconnection detection time is 5 seconds.

Working environment

Operating temperature: 0 to 60°C.

Installation method: ControlLogix rack, in conjunction with 1756-TBCH or 1756-TBS6H detachable terminal blocks (RTB).

Enclosure type: Open type. It needs to be installed in a well-ventilated control cabinet.

Wiring requirements:

Recommended wire diameter: 0.33 to 2.1mm ² (22 to 14 AWG), use shielded copper wire, insulation class 105°C or higher, maximum insulation thickness 1.2mm.

Certification and Standards

It complies with standards such as CE, CUL, GOST, KC, RCM and UL.

UPC code: 887172321641.

Function

High-precision signal conversion

Convert 0-20 mA or 4-20 mA current signals into digital signals, suitable for high-precision measurement scenarios such as pressure, flow, and liquid level.

High resolution (16-21 bits) ensures precise data acquisition.

HART protocol support:

Each channel is equipped with an independent HART modem to support direct communication with HART devices.

Support three data formats:

Analog Only.

Analog signal and HART main variable (Analog and HART PV).

Analog signal and HART by Channel data.

Allow remote configuration, calibration and equipment diagnosis to reduce on-site maintenance workload.

Channel isolation

Each input channel is completely isolated to avoid interference between channels, making it suitable for high-noise or complex electrical environments.

Provide higher signal integrity and reliability.

Fault and Condition Monitoring

Support over-range/under-range detection and promptly alarm for abnormal signals.

Disconnection detection function: Within the range of 4-20 mA, when a disconnection is detected, the module will switch the input data to the under-range value and set the fault position.

Detailed fault and status data are sent to the controller through the three-level tag system to facilitate monitoring and diagnosis.

Module filtering and real-time sampling

The built-in filter reduces signal noise and improves data quality.

Supports real-time sampling (RTS), and users can configure the sampling frequency according to application requirements.

Flexible installation and maintenance:

Supports hot plugging (modules and terminal blocks can be removed when powered on).

Use detachable terminal blocks (RTB) to simplify wiring and maintenance.

Communicate seamlessly with the ControlLogix controller via ControlNet or EtherNet/IP network.

Application scenarios

Industrial Automation and Process Control

Oil and gas: Monitor parameters such as pipeline pressure, flow rate, and temperature, communicate with intelligent sensors via the HART protocol, and obtain equipment status and diagnostic information.

Chemical engineering and pharmaceuticals: Precisely measure key parameters during the reaction process (such as pH value, liquid level, and concentration) to ensure process stability and product quality.

Water treatment and environmental monitoring: Collect data from water quality sensors (such as turbidity and pressure), and manage remote devices in combination with the HART protocol.

Manufacturing industry

It is used to monitor the operating status of equipment such as motors, pumps and valves, control electromagnetic equipment or AC motors, and optimize production efficiency.

It is suitable for scenarios that require high-precision data collection, such as precision machining or robot control.

Energy Management

In power or renewable energy systems, parameters such as current and power are monitored to optimize energy distribution.

The HART protocol supports remote calibration and maintenance, reducing on-site intervention.

Complex industrial environment

The channel isolation design makes it suitable for use in environments with high electrical noise, such as metallurgical, mining or heavy industrial plants.

The open shell design is suitable for installation in a well-ventilated control cabinet and can adapt to various industrial site conditions.

Distributed Control System (DCS)

Integrated into the ControlLogix platform, it enables distributed signal acquisition and control via EtherNet/IP or ControlNet networks, making it suitable for complex control architectures in large factories.

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)            

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