Image is for illustrative purposes only. Please refer to product description.
- Manufacturer
- Allen-Bradley
- Manufacturer part number
- 1756-L73XT
- Product family
- ControlLogix and GuardLogix Controllers (1756)
- Category
- PLCs and I/O › CPU and processor modules
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | ControlLogix controller |
| Manufacturer lifecycle | Active |
| User memory | 8 MB |
| I/O memory | 0.98 MB |
| Nonvolatile memory storage | 1 GB Secure Digital (SD) card (1784-SD1), ships pre-installed in the controller |
| Digital I/O, max | 128,000 |
| Analog I/O, max | 4000 |
| Total I/O, max | 128,000 |
| Energy storage modules | 1756-ESMCAPXT capacitor energy storage module (removable, ships installed with every controller) 1756-ESMNSEXT capacitor energy storage module (removable, no residual WallClockTime power backup) 1756-ESMNRMXT capacitor energy storage module (non-removable, prevents USB connection and SD card use to help secure the controller) |
| Current draw @ 5.1V DC | 800 mA |
| Current draw @ 1.2V DC | 5 mA |
| Power dissipation | 2.5 W |
| Thermal dissipation | 8.5 BTU/hr |
| Isolation voltage | 30V (continuous), basic insulation type, USB port to backplane, Compliant and tested according to IEC/UL 61010-1 |
| USB port | USB 2.0, full speed (12 Mbps) |
Show all 24 specificationsShow fewer specifications
| Weight, approx | 0.25 kg (0.55 lb) |
|---|---|
| Slot width | 1 |
| Module location | Chassis-based, any slot |
| Chassis | For extended temperature applications, use 1756-A7XT and 1756-A10XT, Series C, For extended temperature and corrosive atmosphere applications, use 1756-A7ZXT and 1756-A10ZXT, For low temperature and corrosive atmosphere applications only, use 1756-A4K, 1756-A7K, 1756-A10K, 1756-A13K, 1756-A17K |
| Power supply, standard | 1756-PAXT, 1756-PA30XT, 1756-PBXT, 1756-PB30XT |
| Power supply, redundant | 1756-PAXTR, 1756-PBXTR |
| Wire category | 3 - on USB ports |
| Temperature code | T4 |
| Enclosure type rating | None (open-style) |
Description
The Allen-Bradley 1756-L73XT is the ControlLogix 8MB Controller L7XT, listed by Rockwell Automation with the lifecycle status Active Mature. Rockwell's technical data 1756-TD001 gives 8 MB of user memory, 0.98 MB of I/O memory and a maximum of 128,000 total I/O, of which up to 4000 are analog. Nonvolatile storage is a 1 GB Secure Digital card (1784-SD1) that ships pre-installed in the controller. The module is chassis-based, fits any slot, is 1 slot wide and weighs approximately 0.25 kg (0.55 lb).
Application: PLC controller
Used with: ControlLogix 1756 chassis
What is the 1756-L73XT used for?
The 1756-L73XT is a controller that installs in a ControlLogix chassis and is fitted with one of the listed energy storage modules. Rockwell specifies 1756-A7XT and 1756-A10XT Series C chassis for extended temperature applications, and other listed chassis for corrosive atmosphere or low temperature use. It is an open-style device with no enclosure type rating and a temperature code of T4.
Key features
- 8 MB user memory and 0.98 MB I/O memory
- 1 GB SD card ships pre-installed in the controller
- Up to 128,000 total I/O, 4000 analog I/O
- Removable 1756-ESMCAPXT energy storage module ships installed
- USB 2.0 full speed port at 12 Mbps
Documents and Resources
Associated Products
| Image | Product | Description | Stock | View | Add to RFQ |
|---|---|---|---|---|---|
 | 1756-L71Allen-Bradley | ControlLogix 2 MB controller with SD card | In stock | View | |
 | 1756-L72Allen-Bradley | ControlLogix 4 MB controller, 1-port USB | In stock | View | |
 | 1756-L73Allen-Bradley | ControlLogix 8 MB controller, 1-port USB | In stock | View | |
 | 1756-L74Allen-Bradley | ControlLogix 16 MB controller, USB port | In stock | View | |
 | 1756-L75Allen-Bradley | ControlLogix 32 MB controller, USB port | In stock | View | |
 | 1756-L61Allen-Bradley | ControlLogix 5560 controller, 2 MB memory | In stock | View | |
 | 1756-L63Allen-Bradley | ControlLogix 5560 controller, 8 MB memory | In stock | View | |
 | 1756-L62Allen-Bradley | ControlLogix 5560 controller, 4 MB memory | In stock | View | |
 | 1756-L64Allen-Bradley | ControlLogix 5560 controller, 16 MB memory | In stock | View | |
 | 1756-L65Allen-Bradley | ControlLogix 5560 controller, 32 MB memory | In stock | View | |
 | 1756-L81EAllen-Bradley | ControlLogix 5580 Controller with 3 MB Memory | In stock | View | |
 | 1756-L83EAllen-Bradley | ControlLogix 5580 Controller with 10 MB Memory | In stock | View |
Product Questions
Is the 1756-L73XT discontinued?
No. Its manufacturer lifecycle status is Active.
Can another Allen-Bradley ControlLogix and GuardLogix Controllers part replace it?
Potential replacements must be checked against the required ratings, dimensions and connections. Sharing a family name does not establish interchangeability.
Do you ship worldwide?
Yes. TimControls ships worldwide. Parts usually ship within 3 to 7 working days of order confirmation, and the exact lead time and shipping options are stated on your quote. Include your delivery country and postal code when you ask for a quote.
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