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SIEMENS 6ES7511-1AL03-0AB0 SIMATIC S7-1500 CPU 1511-1 PN

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SIMATIC S7-1500

6ES7511-1AL03-0AB0

CPU 1511-1 PN

Central processing unit for S7-1500 systems with integrated PROFINET interface and high-speed processing capability.

◈ Modular automation

CPU PERFORMANCE PROFILE

WORK MEMORY

300 KB

Program memory

DATA MEMORY

1.5 MB

Data storage

NETWORK

PROFINET IRT

SWITCH

2-port

Performance: 6 ns bit performance. A SIMATIC Memory Card is required for operation.

AMIKON SUPPORT

AUTOMATION PARTS

Precision supply for critical maintenance.

Sales Manager
Miya zheng

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SIMATIC S7-1500 • CPU 1511-1 PN • INDUSTRIAL CONTROL

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Product Details

SIEMENS · S7-1500

SIMATIC S7-1500 / CENTRAL PROCESSING

6ES7511-1AL03-0AB0

SIMATIC S7-1500 CPU 1511-1 PN

A compact S7-1500 central processing unit designed for standard automation architectures, combining 300 KB program work memory, 1.5 MB data work memory and an integrated PROFINET interface with a 2-port switch. Typical bit-operation processing performance is 6 ns.

PROCESSING

6 ns

Typical bit operation

PROGRAM MEMORY

300 KB

Integrated work memory

DATA MEMORY

1.5 MB

Integrated work memory

CORE CONFIGURATION

CPU 1511-1 PN

Supply	24 V DC
Network	PROFINET IRT
Ports	2 × RJ45
Memory Card	Required
Display	3.45 cm

PART NUMBER
6ES7511-1AL03-0AB0

01 / PRODUCT POSITION

Built for S7-1500 Control

The 6ES7511-1AL03-0AB0 belongs to the SIMATIC S7-1500 CPU 1511-1 PN family. It provides central processing for S7-1500 automation systems and integrates PROFINET communication through one interface with two RJ45 ports and an integrated switch.

The CPU combines fast instruction execution with integrated diagnostics, a front display, configurable retentive memory and engineering through STEP 7 in TIA Portal. It supports PROFINET IO Controller and IO Device functions, IRT, media redundancy and a range of industrial communication services.

WHY THIS CPU

Balanced processing + network architecture

The 6 ns typical bit-operation performance gives the CPU a strong processing profile for standard machine-control sequences, while the integrated two-port PROFINET switch simplifies network topology inside the S7-1500 station.

Its 300 KB program work memory and 1.5 MB data work memory provide a practical balance for compact and medium-scale automation programs where S7-1500 architecture and PROFINET integration are priorities.

ENGINEERING HIGHLIGHTS

TIA Portal	V21 / FW V4.1 or later
I&M Data	I&M0 to I&M3
Isochronous Mode	Supported
Web Server	HTTP / HTTPS
Media Redundancy	MRP / MRPD

02 / TECHNICAL SPECIFICATIONS

Configuration at a Glance

Category	Specification	Value
CPU	Product type	CPU 1511-1 PN
Memory	Work memory / program	300 KB
Memory	Work memory / data	1.5 MB
Load memory	SIMATIC Memory Card	Required; up to 32 GB
Processing	Bit operations, typical	6 ns
Processing	Word operations, typical	7 ns
Processing	Floating-point arithmetic, typical	37 ns
Power	Supply voltage	24 V DC
Power	Permissible voltage range	19.2–28.8 V DC
Power	Typical power loss	3.4 W
PROFINET	Interface X1	1 interface / 2 RJ45 ports
PROFINET	Operating modes	RT / IRT
PROFINET	Maximum IO devices	128
Communication	Maximum connections	128
Display	Screen diagonal	3.45 cm
Control	Keys / mode buttons	8 / 2
Engineering	TIA Portal	V21 with FW V4.1 or later

03 / SERIES POSITION

CPU 1511-1 PN Family

The CPU 1511-1 PN is part of the SIMATIC S7-1500 controller platform. Its architecture is centered on a CPU with integrated PROFINET connectivity, local display functions and SIMATIC Memory Card support.

For replacement planning, the 6ES7511-1AL03-0AB0 is particularly relevant when the project requires the 300 KB / 1.5 MB memory configuration, 6 ns bit processing performance and the current CPU 1511-1 PN feature set.

CPU 1511-1 PN
300 KB program / 1.5 MB data

PROFINET Architecture
2-port integrated switch

S7-1500 Platform
TIA Portal engineering

Industrial Networking
RT / IRT / MRP

04 / APPLICATION LOGIC

Where the CPU Fits

The CPU is well suited to S7-1500 control cabinets where centralized logic, distributed PROFINET I/O and fast cyclic processing need to operate within one integrated controller architecture.

Machine Automation Suitable for machine sequences, interlocks, distributed I/O and coordinated control tasks within an S7-1500 architecture.		PROFINET I/O Supports PROFINET IO Controller and IO Device operation, including RT and IRT functions.
Networked Control MRP and related redundancy functions can support network architectures where continuity during a line interruption is important.		Replacement Planning When replacing an earlier CPU 1511-1 PN generation, verify memory configuration, firmware/TIA Portal compatibility, network topology and the project configuration before commissioning.

Replacement / Troubleshooting Focus

If an installed CPU shows communication loss, unexpected STOP behavior or configuration mismatch after replacement, check the 24 V DC supply, SIMATIC Memory Card, CPU firmware, TIA Portal project compatibility, PROFINET device configuration and network topology. For a direct replacement, compare the exact order number and project requirements rather than selecting a CPU only by family name.

05 / DIRECT CONTACT

Let's Check Your Requirement

EMAIL SALES
sales@amikon.cn

PHONE / WHATSAPP
86-18020776792

SALES MANAGER
Miya zheng

Delivery
3–5 days

Warranty
12 months

Packaging
Brand New

Payment
T/T

Delivery way: E-packing / FedEx / EMS / TNT / DHL / UPS

For a Faster Quotation

Please provide: Part Number · Quantity · Destination · Required Date · Machine/System

06 / BUYER QUESTIONS

6ES7511-1AL03-0AB0 FAQ

Focused on compatibility, replacement decisions, project continuity and procurement risk.

Can 6ES7511-1AL03-0AB0 replace an earlier CPU 1511-1 PN in an existing project? It can be a replacement candidate within the CPU 1511-1 PN family, but the exact project must be checked for firmware, TIA Portal version, memory requirements and configured communication functions. Siemens states that this CPU can be configured in newer TIA Portal environments and can also be configured with older versions under the corresponding earlier CPU designation.		What makes 6ES7511-1AL03-0AB0 attractive for a PROFINET-based control system? The CPU combines an integrated PROFINET interface, two RJ45 ports, an integrated switch, PROFINET IO Controller and IO Device functions, RT/IRT support and media-redundancy capabilities. This makes it practical for distributed S7-1500 automation structures.
Is the 6ES7511-1AL03-0AB0 suitable when the application needs more memory than an older CPU 1511-1 PN? The current configuration provides 300 KB integrated work memory for the program and 1.5 MB for data. Earlier CPU 1511-1 PN generations can have lower memory capacities, so the 6ES7511-1AL03-0AB0 can offer a meaningful capacity increase when the project structure is compatible.		What should be checked before purchasing 6ES7511-1AL03-0AB0 as an emergency replacement? Confirm the complete order number, CPU generation, firmware requirements, TIA Portal engineering environment, SIMATIC Memory Card arrangement, PROFINET device configuration and required communication services. Matching only the “CPU 1511-1 PN” family name is not sufficient for a controlled replacement.
When is 6ES7511-1AL03-0AB0 a stronger choice than keeping an older CPU 1511-1 PN generation? It is particularly compelling when the project benefits from the newer 300 KB / 1.5 MB memory configuration, 6 ns typical bit-operation performance, current engineering support, integrated PROFINET functions and the current CPU 1511-1 PN feature set. For an installed system, however, the final choice should be based on the complete project configuration rather than CPU speed alone.

07 / AMIKON INDUSTRIAL AUTOMATION

Parts Supply Built Around Downtime Control

AMIKON focuses on industrial automation PLC modules, control systems and hard-to-source automation components, supporting customers who need dependable procurement for operating equipment and maintenance programs.

Our working goal
Improve procurement efficiency, shorten equipment downtime and help customers secure the parts required for ongoing industrial operations.

HIMA · ABB · Rockwell / ICS Triplex · TRICONEX · Woodward · GE · Yokogawa · Bently Nevada · Emerson / DeltaV · KUKA · ABB Robotics

Our sourcing and logistics network supports spare and operational parts for customers across international markets.

AFTER-SALES

Return / Replacement

Please contact us within 7 days after receiving the items if you have any question concerning the order. Returned items should remain in their original condition, together with a specific reason for the return. After the returned items are received, we will arrange an appropriate return or replacement for the order according to the case. Shipping costs incurred by the buyer are the buyer's responsibility.

08 / OTHER AUTOMATION PARTS

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