1756-IF6CIS Allen Bradley Rockwell Analog Input Module

Product parameters

Basic overview:

Manufacturer: Allen-Bradley/Rockwell Automation

Product series: 1756 ControlLogix

Module Type: Isolated Current Sourcing Analog Input Module

Product Number: 1756-IF6CIS (Series A)

6 independent isolated current source input channels (20 pins)

Input signal range: 0-20 mA (Fixed range, users cannot select other ranges)

Resolution: 16 bits, 0.34 μA per bit

UPC code: 612598292318

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

Electrical parameters:

Backplane current

250 mA @ 5.1V DC

275 mA @ 24V DC

Total backplane power: 7.9W

Power dissipation: Maximum 5.1W at 60°C

Heat dissipation: 17.4 BTU/ hour at 60°C

Input impedance: approximately 215 Ω

Input current range: 0-21 mA (maximum 21.09376 mA)

Current source capacity: Each channel provides 24V DC power supply, with a maximum of 28mA (supporting 2-wire transmitters)

Overvoltage protection: The maximum voltage of the channel power supply is 30V DC, and the external power supply must not exceed 150VA

Conversion method: Sigma-Delta analog-to-digital conversion

Channel update time: 8 ms (No filtering, 6 channels, depending on the filtering Settings)

Common-mode noise suppression: 120 dB @ 60 Hz, 100 dB @ 50 Hz

Isolation voltage: 250V (Basic insulation type, isolated input to the backplane and between channels, test voltage 1350V AC for 2 seconds)

Open-circuit detection time: Positive full-scale reading within 5 seconds

Shell type: Open type

Installation method: Install on the 1756 ControlLogix rack (supporting racks with 4, 7, 10, 13, and 17 slots)

Wiring:

Use detachable terminal blocks (RTB) : 1756-TBNH (20-pin screw terminals) or 1756-TBSH (20-pin spring terminals)

Recommended wire: Solid core or stranded copper wire, 14-22 AWG, insulation temperature class ≥90°C

An optional 1492 interface module (IFM) is available for pre-wiring

A maximum of two wires can be connected to each terminal

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

Storage temperature: -40°C to 85°C (-40°F to 185°F)

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

Vibration: 2 g @ 10-500 Hz

Operating impact: 30 g

Non-operational impact: 50 g

Temperature code: T4 (North American and IEC standards)

Certification:

UL, c-UL-us (Class I, Division 2 Hazardous Environment), CE, C-Tick, FM, ATEX, IECEx

It complies with the requirements of contamination level 2 and overvoltage category II of IEC 60664-1

Function

Isolate the current source input:

It provides 6 independent isolated current input channels (0-20 mA), supporting 2-wire and 4-wire transmitters.

Each channel is equipped with a built-in 24V DC power supply (up to 28 mA), which can power the 2-wire transmitter and eliminate the need for external power supply.

A 4-wire transmitter or instrument circuit supporting external power supply.

High precision and signal quality

16-bit resolution (0.34 μA/ bit) ensures high-precision signal acquisition.

Built-in signal quality detection (over-range/under-range, open-circuit detection), providing diagnostic information through Studio 5000.

Supports digital filtering (configurable) to reduce noise interference and enhance signal stability.

Data Format and Processing

Supports integer mode (left-aligned, 2's complement) and IEEE 32-bit floating-point mode, adapting to different control requirements.

Using Sigma-Delta analog-to-digital conversion, it provides high precision and rapid response.

Diagnosis and Safety:

Each channel is independently isolated to prevent interference between channels and enhance noise immunity.

Supports Event Sequence (SOE) timestamps to record input changes, suitable for critical applications.

Encrypted communication is carried out through CIP Security (EtherNet/IP) to prevent data tampering.

Modular design

Single-slot module, supporting hot plugging (RIUP, Removal and Insertion Under Power), facilitating maintenance.

Simplify on-site wiring by using RTB (1756-TBNH or 1756-TBSH) or 1492 IFM.

Network integration

Supports EtherNet/IP, ControlNet and DeviceNet networks, and is suitable for local or distributed I/O configuration.

Using the Producer-Consumer architecture allows multiple ControlLogix controllers to share input data.

Application scenarios

Industrial Automation

Process control: Measures analog signals such as pressure, flow rate, liquid level and temperature, and is applicable to industries such as petrochemical, pharmaceutical, food processing and water treatment. For example, connect a 4-20 mA transmitter to monitor the pipeline flow.

Environmental monitoring: Interface pH meters, temperature transmitters or vibration sensors to monitor environmental parameters or equipment status.

High-reliability applications: Isolated channels and high noise suppression, suitable for noise-sensitive environments.

System upgrade: Replace PLC-5 (1771-IFE) or ControlLogix 1756-IF6I and upgrade to a higher-performance ControlLogix platform.

Migrate to 1756-IF8I and increase the number of channels (8) and functions.

Distributed control: Integrated into distributed I/O systems via EtherNet/IP or ControlNet networks, suitable for large factories.

Key applications: Utilizing SOE timestamps and isolated channels to record critical process events, suitable for safety instrumented systems (SIS).

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!!!

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