Products Description




| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |

Technical Specifications
| Description | Parameter |
|---|---|
| Product Model | 1756-L81EP |
| Manufacturer | Allen‑Bradley / Rockwell Automation |
| Product Type | ControlLogix 5580 Process Controller |
| Module Function | Programmable Automation Controller (Process/Control) |
| User Memory | 3 MB standard (varies by variant) |
| I/O Memory | 0.98 MB |
| Maximum Digital I/O | 128,000 points |
| Maximum Analog I/O | 4,000 points |
| Non‑volatile Memory | 4 GB Secure Digital (SD) card installed |
| Communication Ports | 1 × Gigabit Ethernet, 1 × USB 2.0 (programming) |
| Ethernet Speed | 10/100/1000 Mbps |
| Tasks Supported | Up to 32 tasks; up to 1000 programs per task |
| Backplane Current Consumption | ~1.20 A @ 5.1 V DC; ~5 mA @ 1.2 V DC |
| Power Dissipation | ~6.2 W |
| Isolation Voltage | 30 V continuous |
| Operating Temperature | –25 to 70°C (–13 to 158°F) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Humidity | 5–95% non‑condensing |
| Vibration Rating | 2 g (10–500 Hz) |
| Shock Rating | 30 g |
| Dimensions | 237.5 mm × 183 mm × 55 mm |
| Weight | ~0.25 kg |
| Installation | ControlLogix 1756 chassis slot |
| Certifications | CE, UL, CSA, ATEX, IECEx, KC, RCM |
| Lifecycle Status | Discontinued (EOL Dec 31, 2026) |
FAQ
FAQ
Q1. What is the purpose of the 1756‑L81EP controller?
It is a high‑performance ControlLogix 5580 series process controller for automation and process control.
Q2. How much program memory does the 1756‑L81EP have?
It includes 3 MB of user memory and dedicated I/O memory for program execution.
Q3. What I/O capacity can this controller support?
It can support up to 128,000 digital I/O points and 4,000 analog I/O points.
Q4. How does it connect to networks?
It has a built‑in Gigabit Ethernet port and a USB port for programming and communication.
Q5. What type of memory card does it use for non‑volatile storage?
A 4 GB Secure Digital (SD) card is installed for non‑volatile program and data storage.
Q6. What environment ranges can the controller operate in?
It operates from –25 to 70 °C, making it suitable for harsh and process environments.
Q7. Is the controller still in production?
No; it is scheduled for end of life on December 31, 2026.
Q8. Where is this controller most commonly used?
In large industrial automation applications requiring high performance, extensive I/O capacity, and robust process control.
Tags
Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
