1756-IF8I

 
 
 
 
 
Rated 5 with 15 reviews

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1756-IF8I

Revisions: Ser A 
Description: Allen Bradley ControlLogix Isolated Analog Input Module with 8 Isolated Channels Channels
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Description: Allen Bradley ControlLogix Isolated Analog Input Module with 8 Isolated Channels Channels

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Revisions: Ser A 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via DHL, UPS, Fedex, and TNT
Repairs: We offer repair service for the 1756-IF8I.
Exchange: Exchange credit for your defective unit available.

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Rated 5 with 15 reviews

    Technical Specifications for 1756-IF8I

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-IF8I
SeriesControlLogix
Module TypeIsolated Analog Input Module
Channels8 Isolated Channels
I-O Ranges0-10 Volts
Resolution24 bit
Current Draw (5.1 Volts)200 milliamps
Current Draw (24 Volts)150 or 400 milliamps
Resolution16-21 bits
EnclosureOpen
RSLogix 5000 SoftwareVerson 8.02.00 or later
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-IF8I
SeriesControlLogix
Module TypeIsolated Analog Input Module
Channels8 Isolated Channels
I-O Ranges0-10 Volts
Resolution24 bit
Current Draw (5.1 Volts)200 milliamps
Current Draw (24 Volts)150 or 400 milliamps
Resolution16-21 bits
EnclosureOpen
RSLogix 5000 SoftwareVerson 8.02.00 or later

About 1756-IF8I

The Allen-Bradley 1756-IF8I is an 8-Point General-Purpose Isolated Analog Current/Voltage Input Module.  Any combination of Voltage or Current mode can be used in its channels. It requires a 36-pin removable terminal block housing (RTB) before it can be connected to the compatible ControlLogix chassis. The 1756-IF8I provides higher-level accuracy, performance, and configuration for voltage, current, or 2-wire transmitter current sourcing per channel.  Note that this module does not offer the RTS parameter and the channel sampling rate is exclusively determined by the requested packet interval (RPI) value. This module has a variable input range and resolution that you can choose from -10 to 10 Volts with 1.49 µVolts/count, 0 to 10 Volts with 1.49 µVolts/count, 0 to 5 Volts with 1.49 µVolts/count,  0 to 20 milliamps with 2.99 nA/count. The 1756-IF8I has an internal loop power source, which is software user-configurable, on each channel. For you to do so, you first need to use the Current input type and enable Source Loop Current to use an internal power source on the channel. 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 lets you know when the isolated input module is operating beyond the limits set by the input range. 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 you to synchronize input sampling across inputs on multiple modules, which forces the inputs to sample simultaneously within around 20 µS 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 and this informs you when a wire lost connection with a channel or an RTB has been removed from the module.

Repair Services for 1756-IF8I

Type Lead Time Price Action
Repair Service 2-4 weeks $943cartAdd to Cart
Our highly skilled technicians can repair your ControlLogix 1756-IF8I. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process.

Revisions for 1756-IF8I

Please refer to the manual for more information about the 1756-IF8I such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1756-IF8I Ser A
1756-IF8I/A, Series A, Rev A Request Quote
Common misspellings:
  • l756-IF8I
  • 1756-IFbI
Technical Specifications
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-IF8I
SeriesControlLogix
Module TypeIsolated Analog Input Module
Channels8 Isolated Channels
I-O Ranges0-10 Volts
Resolution24 bit
Current Draw (5.1 Volts)200 milliamps
Current Draw (24 Volts)150 or 400 milliamps
Resolution16-21 bits
EnclosureOpen
RSLogix 5000 SoftwareVerson 8.02.00 or later
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-IF8I
SeriesControlLogix
Module TypeIsolated Analog Input Module
Channels8 Isolated Channels
I-O Ranges0-10 Volts
Resolution24 bit
Current Draw (5.1 Volts)200 milliamps
Current Draw (24 Volts)150 or 400 milliamps
Resolution16-21 bits
EnclosureOpen
RSLogix 5000 SoftwareVerson 8.02.00 or later
About

The Allen-Bradley 1756-IF8I is an 8-Point General-Purpose Isolated Analog Current/Voltage Input Module.  Any combination of Voltage or Current mode can be used in its channels. It requires a 36-pin removable terminal block housing (RTB) before it can be connected to the compatible ControlLogix chassis. The 1756-IF8I provides higher-level accuracy, performance, and configuration for voltage, current, or 2-wire transmitter current sourcing per channel.  Note that this module does not offer the RTS parameter and the channel sampling rate is exclusively determined by the requested packet interval (RPI) value. This module has a variable input range and resolution that you can choose from -10 to 10 Volts with 1.49 µVolts/count, 0 to 10 Volts with 1.49 µVolts/count, 0 to 5 Volts with 1.49 µVolts/count,  0 to 20 milliamps with 2.99 nA/count. The 1756-IF8I has an internal loop power source, which is software user-configurable, on each channel. For you to do so, you first need to use the Current input type and enable Source Loop Current to use an internal power source on the channel. 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 lets you know when the isolated input module is operating beyond the limits set by the input range. 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 you to synchronize input sampling across inputs on multiple modules, which forces the inputs to sample simultaneously within around 20 µS 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 and this informs you when a wire lost connection with a channel or an RTB has been removed from the module.

Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks $943cartAdd to Cart
Our highly skilled technicians can repair your ControlLogix 1756-IF8I. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process.
Type Lead Time Price Action
Repair Service 2-4 weeks $943cartAdd to Cart
Our highly skilled technicians can repair your ControlLogix 1756-IF8I. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process.
Revisions

Please refer to the manual for more information about the 1756-IF8I such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1756-IF8I Ser A
1756-IF8I/A, Series A, Rev A Request Quote

Common misspellings:
  • l756-IF8I
  • 1756-IFbI
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