SIEMENS SIMATIC S7-1500 6ES7511-1AK01-0AB0 CPU 1511-1 PN Central Processing Unit

Official product overview

CPU 1511-1 PN spare-part controller

Spare-part central processing unit with 150 KB program work memory, 1 MB data work memory, PROFINET IRT with a two-port switch, 60 ns bit performance and required SIMATIC Memory Card.

Lifecycle: Siemens lists 6ES7511-1AK01-0AB0 as cancelled since 07.05.2018 and identifies 6ES7511-1AL03-0AB0 as the successor. Migration is not assumed to be drop-in and must be engineered.

Exact MLFB

6ES7511-1AK01-0AB0

Lifecycle

Cancelled spare part

Successor

6ES7511-1AL03-0AB0

Applications

Central and distributed S7-1500 automation

Execute the user program for small to mid-range machine and plant control tasks.
Connect central or distributed process I/O through the SIMATIC S7-1500 and PROFINET architecture.
Operate through the integrated PROFINET interface as an IO Controller or I-Device where the engineered project permits.
Use the integrated display, system diagnostics and web-based service functions for commissioning and maintenance.

Application note: Confirm the actual firmware, TIA Portal version, configured modules and network topology before reusing an existing project or replacing another CPU.

Data

Product-specific values from the Siemens Industry Mall and CPU manual.

Work memory

150 KB + 1 MB

Interface

PROFINET IRT

Supply

24 V DC

Format

35 x 147 x 129 mm

Product type	CPU 1511-1 PN
Hardware function status	FS03
Firmware reference	V2.9 in the current Siemens comparison data; verify the quoted unit
Program work memory	150 KB
Data work memory	1 MB
SIMATIC Memory Card	Required; one slot
PROFINET interface	X1, IRT with integrated 2-port switch
Bit performance	60 ns typical
Rated supply	24 V DC
Permissible supply range	19.2 to 28.8 V DC
Rated current consumption	0.7 A
Typical power loss	5.7 W
Dimensions	35 x 147 x 129 mm
Approximate weight	430 g

Construction

The front and rear connection elements are identified in the official product manual.

Integrated displayShows operating and diagnostic information; display behavior depends on temperature.	Mode selectorRUN, STOP and MRES positions for operating mode and memory reset.
Memory-card slotA SIMATIC Memory Card is mandatory for operation and load memory.	PROFINET X1Two RJ45 ports, X1 P1 R and X1 P2 R, with integrated switch.
Supply X80Plug-in 24 V DC supply connector; connector is supplied with the CPU.	Backplane connectionRear plug-in connection interfaces the CPU with the S7-1500 backplane bus.
Status LEDsRUN/STOP, ERROR, MAINT and LINK RX/TX indicators support diagnostics.	Nameplate checksArticle number and MAC address information must be verified on the actual unit.

Environment

Use the CPU in the cabinet and ambient conditions defined for the S7-1500 system.

Degree of protection	IP20 for the SIMATIC S7-1500 system
Installation environment	Dry environment; install in a control cabinet
Operating temperature	Confirm before quotation for the exact hardware, mounting orientation and cabinet conditions
Storage / transport temperature	Subject to verification against the current Siemens documentation for the quoted unit
Altitude and derating	Apply the S7-1500 system-manual limits and restrictions
EMC and approvals	Verify the current declarations and certificate scope for the exact article and destination
Cooling and clearance	Follow the S7-1500 system manual; do not block ventilation or ignore orientation restrictions

Protection note: IP20 does not replace a suitable enclosure. Cabinet protection, grounding, separation and environmental control belong to the complete installation.

Installation

Coordinate the rail, supply, memory card and network before commissioning.

Mounting railInstall the CPU in the S7-1500 station using the official system procedure.	24 V DC connectionUse X80 and the official terminal assignment; observe the stated permissible supply range.
System supplyIf a system power supply supplies the CPU, the separate 24 V connection may not be required.	Memory cardInsert a compatible SIMATIC Memory Card before loading the project.
PROFINET wiringConnect the engineered network to X1 P1 or X1 P2 through approved industrial Ethernet cabling.	Project downloadMatch article, firmware and TIA Portal project before commissioning.
Grounding and shieldingFollow the S7-1500 system manual for cabinet, PE, shield and cable routing.	Final checkVerify module order, connectors, network name, IP settings and diagnostics before RUN.

Verification

A replacement decision depends on more than the printed CPU family name.

Exact MLFB	6ES7511-1AK01-0AB0
Hardware / firmware	Read FS and firmware from the unit or online diagnostics
Engineering version	Siemens lists V17 for FW V2.9 and V13 SP1 Update 4 or higher for FW V1.8; verify the actual project
SIMATIC Memory Card	Confirm card type, capacity, contents and inclusion
Project backup	Obtain a validated backup before removing the installed CPU
Network topology	Confirm PROFINET device name, IP settings, I/O devices and media-redundancy use
Module configuration	Check central and distributed I/O articles and firmware
Successor review	Assess 6ES7511-1AL03-0AB0 separately; do not assume plug-and-play equivalence

Quotation input: Send the existing CPU nameplate, firmware, memory-card details, TIA Portal version and system topology for verification.

Commercial

FAQ and procurement answers use written verification instead of unsupported promises.

Stock

Confirm before quotation

Condition

Stated in writing

Evidence

Available on request

Is this confirmed in stock?	Confirm before quotation for the exact article, quantity and destination.
New, used or refurbished?	The quoted condition is stated in writing. No condition is assumed.
Can current photos be supplied?	Current overall-unit and nameplate photos are available on request for the quoted unit.
Has the unit been tested?	Available on request and subject to the agreed inspection or test scope.
Warranty period	Confirmed in the formal quotation.
Dispatch time	Confirmed after stock, destination and order approval are verified.
Payment methods	Available on request in the formal quotation.
Quotation response	Subject to request completeness and verification.
How is the transaction verified?	Company details, quotation, invoice and beneficiary information are available for review before payment.
Is the successor a direct replacement?	No automatic equivalence is promised. Confirm project, firmware, memory and network requirements before migration.
Is a memory card included?	A SIMATIC Memory Card is required; package contents are subject to verification.
Official product status	Siemens identifies this article as a cancelled spare part and lists 6ES7511-1AL03-0AB0 as successor.

Models

Fifty automation references selected from the supplied model lists. Confirm every alternative before quotation.

EIR505-M	RS282-473	HE500TIU112A-311	AFO5200	PH202
GGD126.1U 142LB-IN	AAI143-H53	LV540003 CVS400F	BEHA 93411	ABB 746271
IPC241ER5	GFW-VBC	E244-16C-G-LS-D8-CR-SQ-BR	DCP2-2420	ABB EIB AT/S 8.16.5
W1-S35	QUINT-UPS	RP100-LO-AT-XX	CX-100-XP	ABB 271019-AH
INT69	MWB45-2E	AK-PC 530 084B8007	PDL4335 430-450	T2L160 1SDA053153R1
1SFA899003R1000	XN2-1	LCAD03VLNOD 1080P	IQE38-1201U50036	TSXTPE01
6ES7214-1AG40-0XB0	GH-1KD	V50017-U341-K500 STM-16	MTN565291	6GK5991-1AF00-8AA0
INJ-24-T	AutoCube 8200-1	RGYS00MBP4SE	TN2200	SPCL-RF30-002
QBM30201U	INBIO480	L5504RVF20	1757-SRM	UC24PG-R / UC24PGR
DIN-PSU-24V	TDS1001	BS&B 2003	PCO3000BS0 PCO1000WB0	10-032-N