The Siemens 6ES7511-1AL03-0AB0 is a SIMATIC S7-1500 CPU 1511-1 PN central processing unit with 300 KB work memory for program and 1.5 MB for data, PROFINET IRT with 2-port switch, and a bit operation time of 6 ns.
The S7-1500 is the Siemens controller for medium and large machines and process lines, programmed in STEP 7 (TIA Portal). The CPU has a 3.45 cm front display for diagnostics and settings, and integrated Motion Control technology objects. A SIMATIC Memory Card is required to run the CPU, so order one with it.
Technical data
| Siemens order number | 6ES7511-1AL03-0AB0 |
|---|---|
| Product family | SIMATIC S7-1500 |
| CPU type | CPU 1511-1 PN |
| Work memory (program) | 300 KB |
| Work memory (data) | 1.5 MB |
| Load memory | SIMATIC Memory Card, up to 32 GB (required) |
| Bit operation time | 6 ns |
| Interfaces | PROFINET IRT with 2-port switch |
| Display | 3.45 cm diagonal |
| Supply voltage | 24 فولت DC |
| Power loss, typ. | 3.4 W |
| Firmware (current Siemens data) | V4.1 |
| Engineering software | STEP 7 (TIA Portal) V21 (FW V4.1) / V18 (FW V3.0) or higher |
| Dimensions (W x H x D) | 35 x 147 x 129 mm |
| Weight, approx. | 336 g |
| Operating temperature | -30 to +60 °C horizontal (display up to 50 °C) |
| Condition | New, original Siemens |
Typical applications
- Automotive, packaging and food and beverage lines
- Water and wastewater plants with distributed PROFINET I/O
- Machines with coordinated servo axes (Motion Control)
- Upgrading from S7-300 to a current Siemens platform
Compatibility and replacement
Siemens now lists the earlier 6ES7511-1AK02-0AB0 as a spare part. This 6ES7511-1AL03-0AB0 is the current CPU 1511-1 PN with firmware V4.1. If you are replacing an existing CPU, send us the order number and firmware from the old unit and we will confirm compatibility with your TIA Portal project.
Frequently asked questions
Is the memory card included?
No. The S7-1500 needs a SIMATIC Memory Card to operate. It is ordered separately; tell us the size you need and we will quote it with the CPU.
Which TIA Portal version do I need?
Per Siemens: V21 (FW V4.1) / V18 (FW V3.0) or higher.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the order number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.





