1756-L74 - In Stock | Allen Bradley PLC ControlLogix

1756-L74

Rated 4.4 with 10 reviews

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.


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1756-L74

Revisions: Ser A Ser B 
Description: The Allen-Bradley 1756-L74 is a 5570 ControlLogix Programmable Automation Controller (PAC). This controller features 16 MB user memory, I/O memory of 0.98 MB and 1 GB non-volatile memory via the 1784-SD1 that ships with the controller. It has 1 USB communication port and supports interfacing of up to 128,000 Discrete I/O and 4000 Analog I/O memory.
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Description: The Allen-Bradley 1756-L74 is a 5570 ControlLogix Programmable Automation Controller (PAC). This controller features 16 MB user memory, I/O memory of 0.98 MB and 1 GB non-volatile memory via the 1784-SD1 that ships with the controller. It has 1 USB communication port and supports interfacing of up to 128,000 Discrete I/O and 4000 Analog I/O memory.

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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better business bureau
Revisions: Ser A Ser B 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 1756-L74.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

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Rated 4.4 with 10 reviews

    Technical Specifications for 1756-L74

ManufacturerRockwell Automation
SeriesControlLogix
Programs per task100 Programs
No. of task32
Non-volatile memory1GB (ships with the controlelr)
Product TypeProgrammable Automation Controller
Event TaskAll Triggers
BrandAllen-Bradley
Built-in communication1 USB port
Optional Communication adapters• EtherNet/IP • ControlNet • DeviceNet • Data Highway Plus • Remote I/O • SynchLink • Third-party process and device networks
Part Number/Catalog No.1756-L74
Module TypeProcessor Module
Maximum I-O128000
Maximum Analog I-O4000
RedundancyFull Support
Integrated Motion• SERCOS interface • Analog options (encoder input, LDT input, SSI input) • Integrated Motion on the EtherNet/IP network
I-O Memory0.98 MB
User Memory 16 MB
Maximum Digital I-O128,000
Current Draw (1.2 Volts DC)5 milliamps
Current Draw (5.1 Volts)800 milliamps
Power Dissipation2.5 Watts
Thermal Dissipation 8.5 BTU per hour
Isolation Voltage30 Volts Continuous
EnclosureNone
UPC10612598876041
ManufacturerRockwell Automation
SeriesControlLogix
Programs per task100 Programs
No. of task32
Non-volatile memory1GB (ships with the controlelr)
Product TypeProgrammable Automation Controller
Event TaskAll Triggers
BrandAllen-Bradley
Built-in communication1 USB port
Optional Communication adapters• EtherNet/IP • ControlNet • DeviceNet • Data Highway Plus • Remote I/O • SynchLink • Third-party process and device networks
Part Number/Catalog No.1756-L74
Module TypeProcessor Module
Maximum I-O128000
Maximum Analog I-O4000
RedundancyFull Support
Integrated Motion• SERCOS interface • Analog options (encoder input, LDT input, SSI input) • Integrated Motion on the EtherNet/IP network
I-O Memory0.98 MB
User Memory 16 MB
Maximum Digital I-O128,000
Current Draw (1.2 Volts DC)5 milliamps
Current Draw (5.1 Volts)800 milliamps
Power Dissipation2.5 Watts
Thermal Dissipation 8.5 BTU per hour
Isolation Voltage30 Volts Continuous
EnclosureNone
UPC10612598876041
s

About 1756-L74

The Allen-Bradley 1756-L74 is a Programmable Automation Controller (PAC) that is used for implementing factory and process automation requirements. This controller has a modern design that is specifically catered to meet the requirements of today’s industrial automation requirements.

The 1756-L74 is a single slot width controller, designed with a compact and assembly. It is a chassis-based device that is powered internally by the backplane power distributed to the chassis’ electronic circuitry. This controller is compatible for installation in all of the available chassis made for the ControlLogix system such as 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K,1756-A17, 1756-A17 K.

The 1756-L74 is an environment-friendly controller, as it utilizes energy storage module instead of batteries for keeping the contents of the Random Access Memory (RAM). Energy storage modules are capacitor based which means RAM memory is retained by the energy stored within the capacitors. These energy storage modules are removable and replaceable. For this controller, a 1756-ESMCAP is pre-installed while other compatible modules include 1756-ESMNSE, 1756-ESMNSEK, 1756-ESMNRM, and 1756-ESMNRMK.

The 1756-L74 comes with a 16MB user memory, 0.98 MB I/O memory and ships with a 1GB non-volatile memory via the 1784-SD1. The non-volatile memory may be expanded up to 2GB by replacing the existing unit the 1784-SD2, 2 GB Secure Digital (SD) card.

The 1756-L74 communicates via the built-in USB communication port, however, this port is not ideal for industrial communication. For the mentioned purpose, user may install additional communication adapters that supports specific communication protocols such as EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, SynchLink and Third-party process and device networks.

It is also compatible communicating through EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, and SynchLink. Its integrated motion features are SERCOS interface, analog options, and integrated motion on the EtherNet/IP network. The programming languages are relay ladder, structured text, function diagram, and sequential function chart.

The 1756-L74 controller has a 16 MB user memory and a 0.98 MB I/O memory. It has 128,000 total and digital I/O and 4000 analog I/O. The controller has compatible energy storage modules like the 1756-ESMCAP, 1756-ESMCAPK, 1756-ESMNSE, 1756-ESMNSEK, 1756-ESMNRM, and the 1756-ESMNRMK modules. The 1756-L74 controller only requires 2.5 W of power dissipation and only 8.5 BTU/hr of thermal dissipation. It has a USB port-to-system basic insulation type. It has a chassis-based module location at any slot for the 1756 series with a 1-slot width. Possible chassis include the 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K,1756-A17, and the 1756-A17 K. The 1756-L74 uses a standard power supply such as the 1756-PA50, 1756-PA72, and the 1756-PA72K. For power supply redundancy, it only uses the 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, or the 1756-PSCA2K. The 1756-L74 has an open-style enclosure, an operating temperature of 0-60°C, and a non-operating temperature of -40 - 85°C. Its operating vibration is 10g at 500 Hz at 2 g, its operating shock is 30 g, and its non-operating shock is 50 g.

FAQ for 1756-L74

Does the 1756-L74 support controller redundancy?


Yes. The 1756-L74 has full support for controller redundancy.

How many slot does the 1756-L74 occupy?


The 1756-L74 only occupies single chassis slot.

Does the controller utilizes battery for retaining the contents of the RAM?


No. The 1756-L74 utilizes energy storage module which are capacitor based rather than batteries.

Technical Description of 1756-L74

Allen Bradley ControlLogix Processor Module with 0.98 MB I-O Memory and 16 MB User Memory

Repair Services for 1756-L74

Type Lead Time Price Action
Repair Service 2-4 weeks $5536cartAdd to Cart

Our highly skilled technicians can repair your ControlLogix 1756-L74. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process.

Revisions for 1756-L74

Please refer to the manual for more information about the 1756-L74 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1756-L74 Ser A
1756-L74/A, Series A, Rev A Request Quote
1756-L74 Ser B
1756-L74/B, Series B, Rev B Request Quote
Common misspellings:
  • l756-L74
  • 1756-174
  • 1756-L7A
  • 1756L74

Reviews for 1756-L74

Memory

"This ControlLogix Processor has 16 Mb Memory and comes with 0.98 Mb I/O memory.This AB 1756-L74 contains enough memory to run large applications. " -DO Supply Tech

Internal Review

"The 1756-L74 is a ControlLogix Programmable Automation Controller (PAC) from Allen-Bradley. This controller has a larger user memory, having 16 MB memory size compared to the 1756-L71 which only have 2 MB user memory. This enables the controller to store more project data as well as more complex configurations. " -DO Supply Tech

Dimensions For 1756-L74

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 1756-L74

Resolutions For 1756-L74

About

Technical Specifications for 1756-L74

ManufacturerRockwell Automation
SeriesControlLogix
Programs per task100 Programs
No. of task32
Non-volatile memory1GB (ships with the controlelr)
Product TypeProgrammable Automation Controller
Event TaskAll Triggers
BrandAllen-Bradley
Built-in communication1 USB port
Optional Communication adapters• EtherNet/IP • ControlNet • DeviceNet • Data Highway Plus • Remote I/O • SynchLink • Third-party process and device networks
Part Number/Catalog No.1756-L74
Module TypeProcessor Module
Maximum I-O128000
Maximum Analog I-O4000
RedundancyFull Support
Integrated Motion• SERCOS interface • Analog options (encoder input, LDT input, SSI input) • Integrated Motion on the EtherNet/IP network
I-O Memory0.98 MB
User Memory 16 MB
Maximum Digital I-O128,000
Current Draw (1.2 Volts DC)5 milliamps
Current Draw (5.1 Volts)800 milliamps
Power Dissipation2.5 Watts
Thermal Dissipation 8.5 BTU per hour
Isolation Voltage30 Volts Continuous
EnclosureNone
UPC10612598876041
ManufacturerRockwell Automation
SeriesControlLogix
Programs per task100 Programs
No. of task32
Non-volatile memory1GB (ships with the controlelr)
Product TypeProgrammable Automation Controller
Event TaskAll Triggers
BrandAllen-Bradley
Built-in communication1 USB port
Optional Communication adapters• EtherNet/IP • ControlNet • DeviceNet • Data Highway Plus • Remote I/O • SynchLink • Third-party process and device networks
Part Number/Catalog No.1756-L74
Module TypeProcessor Module
Maximum I-O128000
Maximum Analog I-O4000
RedundancyFull Support
Integrated Motion• SERCOS interface • Analog options (encoder input, LDT input, SSI input) • Integrated Motion on the EtherNet/IP network
I-O Memory0.98 MB
User Memory 16 MB
Maximum Digital I-O128,000
Current Draw (1.2 Volts DC)5 milliamps
Current Draw (5.1 Volts)800 milliamps
Power Dissipation2.5 Watts
Thermal Dissipation 8.5 BTU per hour
Isolation Voltage30 Volts Continuous
EnclosureNone
UPC10612598876041

About 1756-L74

The Allen-Bradley 1756-L74 is a Programmable Automation Controller (PAC) that is used for implementing factory and process automation requirements. This controller has a modern design that is specifically catered to meet the requirements of today’s industrial automation requirements.

The 1756-L74 is a single slot width controller, designed with a compact and assembly. It is a chassis-based device that is powered internally by the backplane power distributed to the chassis’ electronic circuitry. This controller is compatible for installation in all of the available chassis made for the ControlLogix system such as 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K,1756-A17, 1756-A17 K.

The 1756-L74 is an environment-friendly controller, as it utilizes energy storage module instead of batteries for keeping the contents of the Random Access Memory (RAM). Energy storage modules are capacitor based which means RAM memory is retained by the energy stored within the capacitors. These energy storage modules are removable and replaceable. For this controller, a 1756-ESMCAP is pre-installed while other compatible modules include 1756-ESMNSE, 1756-ESMNSEK, 1756-ESMNRM, and 1756-ESMNRMK.

The 1756-L74 comes with a 16MB user memory, 0.98 MB I/O memory and ships with a 1GB non-volatile memory via the 1784-SD1. The non-volatile memory may be expanded up to 2GB by replacing the existing unit the 1784-SD2, 2 GB Secure Digital (SD) card.

The 1756-L74 communicates via the built-in USB communication port, however, this port is not ideal for industrial communication. For the mentioned purpose, user may install additional communication adapters that supports specific communication protocols such as EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, SynchLink and Third-party process and device networks.

It is also compatible communicating through EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, and SynchLink. Its integrated motion features are SERCOS interface, analog options, and integrated motion on the EtherNet/IP network. The programming languages are relay ladder, structured text, function diagram, and sequential function chart.

The 1756-L74 controller has a 16 MB user memory and a 0.98 MB I/O memory. It has 128,000 total and digital I/O and 4000 analog I/O. The controller has compatible energy storage modules like the 1756-ESMCAP, 1756-ESMCAPK, 1756-ESMNSE, 1756-ESMNSEK, 1756-ESMNRM, and the 1756-ESMNRMK modules. The 1756-L74 controller only requires 2.5 W of power dissipation and only 8.5 BTU/hr of thermal dissipation. It has a USB port-to-system basic insulation type. It has a chassis-based module location at any slot for the 1756 series with a 1-slot width. Possible chassis include the 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K,1756-A17, and the 1756-A17 K. The 1756-L74 uses a standard power supply such as the 1756-PA50, 1756-PA72, and the 1756-PA72K. For power supply redundancy, it only uses the 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, or the 1756-PSCA2K. The 1756-L74 has an open-style enclosure, an operating temperature of 0-60°C, and a non-operating temperature of -40 - 85°C. Its operating vibration is 10g at 500 Hz at 2 g, its operating shock is 30 g, and its non-operating shock is 50 g.

FAQ for 1756-L74

Does the 1756-L74 support controller redundancy?


Yes. The 1756-L74 has full support for controller redundancy.

How many slot does the 1756-L74 occupy?


The 1756-L74 only occupies single chassis slot.

Does the controller utilizes battery for retaining the contents of the RAM?


No. The 1756-L74 utilizes energy storage module which are capacitor based rather than batteries.

Technical Description of 1756-L74

Allen Bradley ControlLogix Processor Module with 0.98 MB I-O Memory and 16 MB User Memory
Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks $5536cartAdd to Cart

Our highly skilled technicians can repair your ControlLogix 1756-L74. 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 $5536cartAdd to Cart

Our highly skilled technicians can repair your ControlLogix 1756-L74. 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-L74 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1756-L74 Ser A
1756-L74/A, Series A, Rev A Request Quote
1756-L74 Ser B
1756-L74/B, Series B, Rev B Request Quote

Common misspellings:
  • l756-L74
  • 1756-174
  • 1756-L7A
  • 1756L74
PDF
Reviews

Reviews for 1756-L74

Memory

"This ControlLogix Processor has 16 Mb Memory and comes with 0.98 Mb I/O memory.This AB 1756-L74 contains enough memory to run large applications. " -DO Supply Tech

Internal Review

"The 1756-L74 is a ControlLogix Programmable Automation Controller (PAC) from Allen-Bradley. This controller has a larger user memory, having 16 MB memory size compared to the 1756-L71 which only have 2 MB user memory. This enables the controller to store more project data as well as more complex configurations. " -DO Supply Tech