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Allen-Bradley 1756-IF8I

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Allen-Bradley 1756-IF8I

Allen-Bradley 1756-IF8I

1756-IF8I is a ControlLogix analog input module. It has Eight (8) individually isolated current and Voltage input channels compatible for input signal range of ±10.5V, 0 -10.5V, 0-5V and 0-21 mA. It has a resolution of 24 bits and compatible for use with 2-Wire and 4-Wire transmitters.

 

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  • Brand :

    Allen-Bradley
  • Part number :

    1756-IF8I
  • Payment :

    bank transfer, T/T,PayPal, Alibaba,Alipay
  • Product Origin :

    U.S.A.
  • Color :

    New And Original
  • Lead Time :

    In Stock

Specifications

Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number/Catalog No. 1756-IF8I
Series ControlLogix
Module Type Analog Input
Channels 8 Isolated Channels
Inputs 8-Points, Isolated , Any combination of Voltage or Current mode
I-O Ranges 0-10 Volts
Conversion Method Sigma-Delta
Data format IEEE 32-bit floating point
Current Draw (5.1 Volts) 200 milliamps
Input signal Range -10…10V 0…10V 0…5V 0…20 mA
Current Draw (24 Volts) 150 or 400 milliamps
Resolution 16-21 bits
Input Resolution 24 bits; ±10.5V (1.49 ?V/count) 0…10.5V (1.49 ?V/count) 0…5.25V (1.49 ?V/count) 0…21 mA (2.99 nA/count)
Resolution 16-21 bits
Backplane Current (5Volts) 200 mA
Enclosure Open
Backplane Current (24Volts) Voltage/Non-sourcing Current mode: 150 mA Sourcing Current mode: 400 mA (In Sourcing Current mode, the channel provides loop power.)
Power Dissipation (Max) Voltage mode: 4.6 W Non-sourcing Current mode: 5.1 W Sourcing Current mode: 7.3 W
UPC 10885630245406
Removeable Terminal Blocks 1756-TBNH, 1756-TBS6H

 

The Allen-Bradley 1756-IF8I is a ControlLogix analog input module that features Eight (8) individually isolated analog input channels. It is designed to receive Current and Voltage signals ranging ±10.5V, 0 -10.5V, 0-5V and 0-20 mA. It has a very high conversion resolution of 24-Bits, which makes this module compatible for application that require high-accuracy readings. with resolution of 16 bits.

 

Each channel of the module is provided with overvoltage protection, short circuit detection, module Temperature range error, data alarming such as ramp rate, process alarms and other module diagnostic features.

 

The 24-Bit resolution of this modules provides an actual resolution of 1.49 ?V/count for +/- 10.5 VDC, 0 - 10.5VDC and 0-5.25 VDC for Voltage input while for Current input, the actual resolution for 0-21 mA signal is 2.99 nA/count. This resolution is not the standard resolution of any analog module as typical resolution of standard analog input are 13-16 Bit resolutions only.

 

The terminated Analog signals enables interface to actual process variables. This is necessary for the Programmable Logic Controller (PLC) to monitor or control a process by allowing integration to computer based control systems, such as a Human Machine Interface (HMI), Supervisory Control and Data Acquisition (SCADA) and Distributed Control Systems (DCS).

 

This module is installed to any ControlLogix chassis whether local, distributed or remote I/O installation. It requires 1756-TBCH and 1756-TBS6H Removable Terminal Blocks for signal wiring and appropriate wire size range for this module is 0.33 to 2.1 mm2 (22 to 14 AWG) solid or stranded shielded copper wire.

 

The Allen-Bradley 1756-IF8I is an Eight (8) Point General-Purpose Isolated Analog Current/Voltage Input Module. It requires a 36-pin Removable Terminal Block (RTB) before it can be wired with input signals. The 1756-IF8I provides higher-level accuracy through its 24-Bit conversion resolution and supports 2-wire or 40Wire transmitter configuration.

 

This module does not offer the Real-Time Sampling (RTS) parameter and the channel sampling rate is exclusively determined by the requested packet interval (RPI) value. This module has input ranges and actual resolution of -10 to 10 Volts with 1.49 Volts/count, 0 to 10 Volts with 1.49 ?Volts/count, 0 to 5 Volts with 1.49 ?Volts/count, and 0 to 20 milliamps with 2.99 nA/count. It should be noted that the source current is limited to about 45 milliamps and is capable of powering a two-wire transmitter directly without needing an external power supply.

 

An under-range/over-range detection feature is present in the 1756-IF8I. This enables the module inform process operator or maintenance personnel that the specific channel has received an input signal below the nominal value. This module also has process alarm and rate alarm features. Process alarms are triggered when the module has exceeded the configured high or low limits in every channel. Rate alarms, on the other hand, are triggered when the rate of change between input samples for every channel exceeds the specified trigger point for that particular channel. It also has an analog-to-digital converter (ADC) that is used to remove the line noise, known as noise immunity, in your application for every channel. The notch filter reduces the amplitude of the signal with minimal signal distortion. Aside from that, a digital filter is also present, and this smooths input data noise transients on each input channel. The 1756-IF8I’s synchronized sampling feature allows synchronization of input sampling across inputs on multiple modules, which forces the inputs to sample simultaneously within around 20 ?S of each other, even if the modules do not belong to the same chassis as long as the system clocks are synchronized through the CIP Sync. The module’s sensor offset feature compensates for any known error on the channel to which the sensor is connected to or the sensor itself. A wire off detection feature is also present to detect when a wire lost connection with a channel or an RTB has been removed from the module.

 

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FAQ


1.Q:Other suppliers have a better price than yours?

A: ''To create the greatest benefit for clients'' is our belief, if you have a better price, please let LANEN know. We will try the best to meet your target price and support you.

 

2.Q:What's the delivery time ?

A: Normally we have enough stock for regular models(such as PLC FX3U-64MR/ES-A ) and we can deliver immediately at the same day after payment received. For some products that is not in stock, we normally deliver within one week.

 

3.Q:What is the standard of package?

A: Export standard package or special package according to customer requirement.

 

4.Q: Could Wusu provide technology support?

A: We're in this field for more than 15 years and we have our own technical team. Our engineer could give suggestion and help to solve the problem if there's any problem.

 

5.Q:Does Wusu keeps goods in stock or only trading?

A: We have warehouses in Guangzhou and HongKong and keep large stock of goods in it, that's how we promise fast delivery.

 

All products are covered by the Wusu Industrial Automation Company's 1 Year Warranty. Manufacturer's Warranty does not apply.

 

Refund and replacement

1. Please contact us within 7 days if you have any question after you receiving the items.

 

2.The returned items has to be in its original condition, specific reason for the return, we will 

issue a return or replacement for your order after we received the returns.

 

3.The buyer is responsible for all the shipping cost incurred.

 

 

DHL/FedEx/UPS/TNT/EMS/Aramex for fast and Door-to-Door shipment.

 

By Air or by Sea for bulk of batch goods.

 

Customer can specify freight forwarders or other shipping Methods.

 

 

Alibaba TT Bank transfer, Western Union, Paypal aliexpress only etc.

 

 

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