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- Manufacturer
- Allen-Bradley
- Manufacturer part number
- 1756-L72S
- Product family
- ControlLogix and GuardLogix Controllers (1756)
- Category
- PLCs and I/O › Safety PLCs and safety I/O
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | GuardLogix safety controller |
| Manufacturer lifecycle | Active |
| Safety communication options | Standard and safety, EtherNet/IP, ControlNet, DeviceNet |
| Network connections per network module | 1000 I/O; 528 EtherNet/IP; 512 TCP (1756-EN4TR) 256 EtherNet/IP; 128 TCP (1756-EN2x) 128 EtherNet/IP; 64 TCP (1756-ENBT) 128 ControlNet (1756-CN2/B) 100 ControlNet (1756-CN2/A) 40 ControlNet (1756-CNB/D, 1756-CNB/E) |
| Programming languages | For the safety task, GuardLogix controllers support Ladder Diagram only., For standard tasks, GuardLogix controllers support: Not available Ladder Diagram (LD) Not available Structured Text (ST) Not available Function Block Diagram (FBD) Not available Sequential Function Chart (SFC) |
| User memory | 4 MB |
| Safety memory | 2 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-ESMCAP capacitor energy storage module (removable, ships installed with every controller) 1756-ESMNSE capacitor energy storage module (removable, no residual, WallClockTime power backup) 1756-ESMNRM capacitor energy storage module (non-removable, helps prevent USB connection and SD card use to help secure the controller) |
| Current draw @ 1.2V DC | 5 mA |
| Current draw @ 5.1V DC | 800 mA |
Show all 37 specificationsShow fewer specifications
| Power dissipation | 2.5 W |
|---|---|
| Thermal dissipation | 8.5 BTU/hr |
| Isolation voltage | 30V (continuous), basic insulation, USB port-to-system, Compliant and tested according to IEC/UL 61010-1 |
| Weight, approx | 0.25 kg (0.55 lb) |
| Slot width | 2 (both modules needed; each is one slot) |
| Module location | Chassis-based, any slot |
| Chassis | 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, 1756-A17K |
| Power supply, standard | 1756-PA50, 1756-PA50K, 1756-PA72, 1756-PA72K, 1756-PA75, 1756-PA75K, 1756-PB50, 1756-PB50K 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PC75, 1756-PH75 |
| Power supply, redundant | 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, 1756-PSCA2K |
| Wire category | 3 - on USB ports |
| Temperature code | T4 |
| Enclosure type rating | None (open-style) |
| Temperature, operating | 0 °C ≤ Ta ≤ +60 °C (+32 °F ≤ Ta ≤ +140 °F) |
| Temperature, nonoperating | -40…+85 °C (-40…+185 °F) |
| Relative humidity | 5…95% noncondensing |
| Vibration | IEC 60068-2-6 (Test Fc, Operating) |
| Shock, operating | IEC 60068-2-27 (Test Ea, Unpackaged Shock) |
| Shock, nonoperating | IEC 60068-2-27 (Test Ea, Unpackaged Shock) |
| Emissions | IEC 61000-6-4 |
| ESD immunity | IEC 61000-4-2 |
| Radiated RF immunity | IEC 61000-4-3 |
| Conducted RF Immunity | IEC 61000-4-6 (Not applicable: USB is a temporary programming port.) |
Description
The Allen-Bradley 1756-L72S is a Logix 5572S Automation Controller 4M/2M, listed by Rockwell Automation with the lifecycle status Active Mature. According to Rockwell technical data 1756-TD001, it has 4 MB user memory, 2 MB safety memory and 0.98 MB I/O memory. It supports up to 128,000 total I/O, of which up to 4000 can be analog, and ships with a pre-installed 1 GB SD card (1784-SD1). Rockwell gives its power dissipation as 2.5 W and its current draw as 800 mA at 5.1V DC.
Application: PLC controller
Used with: ControlLogix 1756 chassis
What is the 1756-L72S used for?
Rockwell lists this GuardLogix controller for standard and safety control over EtherNet/IP, ControlNet and DeviceNet. For the safety task it supports Ladder Diagram only, while standard tasks can use Ladder Diagram, Structured Text, Function Block Diagram and Sequential Function Chart. It is chassis-based and fits any slot, and Rockwell states that both modules are needed, each taking one slot.
Key features
- 4 MB user memory and 2 MB safety memory
- 1 GB SD card ships pre-installed for nonvolatile storage
- Up to 128,000 total I/O
- Chassis-based, any slot, two modules of one slot each
- Operating temperature 0 °C to +60 °C, open-style
Documents and Resources
Associated Products
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Product Questions
Is the 1756-L72S 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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