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Allen Bradley ControlLogix 1756-L73SXT

Product image is representative; revision or series may vary. Contact us to request a specific version.

1756-L73SXT

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The Allen-Bradley 1756-L73SXT GuardLogix controller is a specialized ControlLogix series controller with safety features and functions that standard ControlLogix controllers do not have. It also supports both safety and standard communication options over multiple industrial networks. The 1756-L73SXT GuardLogix controller dissipates 2.5 Watts of power and 8.5 BTU per hour of heat during normal operation. It can operate at a maximum ambient temperature of 140 degrees Fahrenheit and be stored at a maximum ambient temperature of 185 degrees Fahrenheit at 95% maximum non-condensing relative humidity. The 1756-L73SXT GuardLogix controller has 8 MB of user memory, 4 MB of safety memory, and the capacity for up to 128,000 total input and output channels.

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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.

Technical specifications for 1756-L73SXT

ManufacturerAllen Bradley
CategoryPLCs
Product LineControlLogix
Part Number1756-L73SXT
Weight2.00 lbs (0.91 kg)
Module TypeGuardLogix Controller
I-O Memory0.98 MB
User Memory9 MB
Maximum I-O128,000
Maximum Analog I-O4,000
Maximum Digital I-O128,000
Current Draw (1.2 Volts DC)5 Miliamperes
Current Draw (5.1 Volts DC)800 Miliamperes
Power Dissipation2.5 Watts
Thermal Dissipation8.5 BTU per hour
Isolation Voltage30 Volts Continuous
EnclosureNone (Open-Style)

The Allen-Bradley 1756-L73SXT is a GuardLogix-XT 5570 controller, a part of the Logix5000 family of controllers. It is a GuardLogix controller with safety control ability and conformal coating for high-performance and to operate in harsh and corrosive environments. It can withstand a temperature of -25 - 70 °C (-13 - 158 °F). It has 1756-L7SPXT safety partner along with it. It has greater processing capabilities and speed for process, motion, and high-performance logic. It has a USB port for communication. It can support up to 500 controller connections. The 1756-L73SXT controller has 8MB of user memory, 4MB Safety Memory, and 0.98MB of I/O memory. It can support 128,000 digital I/O and 4000 analog I/O. It draws a current of 5mA at 1.2V DC and 800mA at 5.1V DC. It has a power dissipation of 2.5W and a thermal dissipation of 8.5 BTU/hr. It weighs 0.55lbs and has an isolation voltage of 30V (continuous) for basic insulation. It can be installed in any slot of a ControlLogix 1756 Chassis and multiple controllers can also be installed in the same chassis. For safe communication, it uses ControlNet, DeviceNet or EtherNet/IP networks. The 1756-L73SXT controller can control or monitor I/O over the backplane or through I/O links. For controller diagnostics, it has a front display that provides runtime information. A 1 GB (1784-SD1) Secure Digital card comes pre-installed as an optional non-volatile storage which can be expanded up to 2 GB (1784-SD2).

Revision Part #Also known as
1756-L73SXT Ser A1756-L73SXT/A, Series A, Rev A
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