Siemens 6ES7513-1AL02-0AB0 Migration-Ready CPU for S7-1500

Overview

Siemens 6ES7513-1AL02-0AB0 Migration-Ready CPU for Legacy Control Systems

The Siemens 6ES7513-1AL02-0AB0 is the CPU 1513-1 PN central processing unit within the SIMATIC S7-1500 automation platform. Designed for high-performance discrete and process control, this CPU module is a direct migration target for facilities retiring older S7-300 and S7-400 controllers, as well as earlier S7-1500 CPU variants such as the 6ES7513-1AL01-0AB0. With native PROFINET IRT support, integrated web server diagnostics, and TIA Portal V15.1+ compatibility, the 6ES7513-1AL02-0AB0 delivers a structured upgrade path that preserves existing program logic while expanding processing capacity and communication bandwidth.

For maintenance engineers managing aging control cabinets, this CPU is a proven drop-in replacement within the S7-1500 rack architecture. It mounts directly onto standard S7-1500 mounting rails and interfaces with existing power supply modules such as the 6EP1333-4BA00 PS 60W 24VDC, eliminating the need for cabinet redesign in most retrofit scenarios. The CPU’s backplane interface is fully compatible with current S7-1500 I/O modules, including digital input modules like the 6ES7521-1BL00-0AB0 DI 32×24VDC HF and analog output modules such as the 6ES7532-5HD00-0AB0 AQ 4×U/I ST, allowing engineers to retain existing field wiring and terminal assignments during the migration.

Before commissioning, engineers should verify the following during retrofit planning: available rack slot positions, backplane bus current budget, 24VDC supply capacity from the existing PS module, and PROFINET port assignments. The CPU occupies one slot on the S7-1500 mounting rail and draws approximately 3.5W from the backplane. If the existing installation uses a 6ES7590-1AB60-0AA0 mounting rail, no mechanical modification is required. Firmware version alignment between the CPU and installed I/O modules must be confirmed in TIA Portal prior to download to avoid compatibility warnings during initial startup.

Communication migration is a critical step when replacing legacy CPUs. The 6ES7513-1AL02-0AB0 supports PROFINET IO controller and device roles simultaneously, enabling parallel operation with existing PROFIBUS DP networks via a 6GK7342-5DA02-0XE0 CP 342-5 communications processor or a dedicated PROFIBUS DP master module during the transition period. This allows the new CPU to maintain live communication with legacy remote I/O stations and third-party field devices while the network is progressively migrated to PROFINET. HMI panels connected via the previous CPU’s MPI or PROFIBUS interface — such as SIMATIC TP700 or TP1200 Comfort panels — can be re-addressed to the new CPU’s PROFINET interface with minimal screen logic changes in WinCC Comfort/Advanced.

Program compatibility should be assessed in TIA Portal using the project migration wizard. S7-300 and S7-400 programs require structural conversion, while S7-1500 projects from earlier firmware revisions typically migrate with minor adaptation. Safety-integrated programs (F-CPU variants) are not applicable to this standard CPU model. After program download, engineers should perform a full I/O force test and verify all PID loop parameters, motion control setpoints, and communication link statuses before releasing the system to production.

All units supplied by KNMKS are sourced from verified industrial channels, individually inspected, and subjected to pre-shipment functional testing. Each 6ES7513-1AL02-0AB0 is covered by a support terms confirmed by quotation from the date of dispatch. Inventory is maintained to support both immediate spare part requirements and long-term supply agreements of 12 to 36 months for multi-site maintenance programs.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

A successful retrofit begins with a detailed audit of the existing control cabinet. Engineers replacing a legacy S7-300 or S7-400 CPU should document all installed I/O modules, their slot addresses, and current terminal wiring before initiating any hardware change. When migrating to the 6ES7513-1AL02-0AB0, the S7-1500 rack layout must be planned to accommodate the CPU in slot 1, with the power supply module — typically a 6EP1333-4BA00 PS 60W or equivalent — positioned in the designated PS slot to the left of the CPU.

I/O expansion within the new rack can reuse existing S7-1500-compatible modules. Digital input modules such as the 6ES7521-1BL00-0AB0 DI 32×24VDC HF and digital output modules like the 6ES7522-1BL01-0AB0 DQ 32×24VDC/0.5A ST can be retained and re-addressed in TIA Portal without rewiring field terminals. Analog signal chains using modules such as the 6ES7531-7KF00-0AB0 AI 8×U/I/RTD/TC ST should be verified for channel scaling and filter settings after migration, as default parameter values may differ between firmware generations.

For installations where PROFIBUS DP field devices — including remote I/O stations, variable frequency drives, and intelligent field instruments — must remain operational during the transition, a 6GK7342-5DA02-0XE0 CP 342-5 or equivalent PROFIBUS master module can be installed in the new rack to maintain network continuity. This approach eliminates the need to simultaneously migrate all field devices, reducing project risk and allowing phased commissioning. Signal isolators and terminal multiplexers already installed in the cabinet can typically be retained without modification.

Programming cable connectivity during commissioning is handled via the CPU’s integrated PROFINET port using a standard RJ45 Ethernet cable and TIA Portal’s online access function. A dedicated 6GK1571-0BA00-0AA0 PC adapter USB A2 is recommended for installations where direct USB-to-MPI/PROFIBUS access to legacy modules is still required during parallel operation. Ensure that the engineering station’s TIA Portal project is saved and backed up before initiating any online download to the new CPU.

Downtime Control During System Migration

Minimizing production downtime during a CPU migration requires a structured changeover plan. The recommended approach is to complete all TIA Portal program compilation, simulation, and offline testing before the scheduled maintenance window. Engineers should export and archive the existing CPU program, hardware configuration, and network topology from the legacy system as a baseline reference. This archive serves as a rollback reference if unexpected issues arise during commissioning of the 6ES7513-1AL02-0AB0.

During the physical changeover, the existing CPU should be powered down following the plant’s lockout/tagout procedure. The new CPU can be installed and powered up in STOP mode, allowing engineers to download the migrated program and hardware configuration without activating field outputs. A staged startup — verifying I/O status, communication link health, and HMI data exchange in STOP mode before switching to RUN — significantly reduces the risk of unintended actuator movement or process upsets during the first power cycle.

For critical continuous processes where even brief interruptions are unacceptable, a parallel-run strategy using a temporary second PROFINET segment allows the new CPU to shadow the existing controller’s I/O reads before cutover. Once data consistency is confirmed, the network switch to the new CPU can be executed within a single scan cycle. This approach is particularly effective in applications involving PID-controlled loops, conveyor sequencing, or safety-interlock-dependent processes where program state continuity is essential.

KNMKS provides pre-shipment functional testing on every unit to confirm that the CPU initializes correctly, communicates on PROFINET, and accepts a TIA Portal program download without errors. This eliminates the risk of receiving a non-functional unit during a time-critical maintenance window. Units are dispatched with original packaging and documentation to support site acceptance testing requirements.

Retrofit Support FAQ

Q1: Is the 6ES7513-1AL02-0AB0 a direct replacement for the 6ES7513-1AL01-0AB0?
Yes. The -1AL02- revision is the current production successor to the -1AL01- variant. The hardware footprint, backplane connector, and PROFINET interface are identical. The TIA Portal project requires a CPU version update in the hardware catalog, after which the program can be recompiled and downloaded without structural changes. Verify that all installed I/O module firmware versions are compatible with the updated CPU firmware before going online.

Q2: Can this CPU communicate with legacy PROFIBUS DP field devices?
The 6ES7513-1AL02-0AB0 does not include a native PROFIBUS DP interface. PROFIBUS connectivity is achieved by adding a CP communication module — such as the 6GK7342-5DA02-0XE0 — to the S7-1500 rack. This module acts as a PROFIBUS DP master and integrates transparently into the TIA Portal hardware configuration, allowing existing PROFIBUS device GSD files and network parameters to be reused.

Q3: What pre-shipment testing is performed, and what does the support terms confirmed by quotation cover?
Every unit undergoes a functional power-on test, PROFINET port verification, and TIA Portal communication check before dispatch. The support terms confirmed by quotation cover hardware defects and functional failures under normal operating conditions from the date of shipment. Units that fail during the confirmed support period are replaced or repaired at no additional cost. Long-term supply agreements with guaranteed inventory availability are available for maintenance programs requiring 12 to 36 months of forward stock.

Q4: How do I confirm installation space and power budget before ordering?
The CPU 1513-1 PN occupies one slot on the S7-1500 mounting rail and requires 24VDC supply from the PS module via the backplane bus, drawing approximately 3.5W. Before ordering, confirm the number of free slots on the existing rail, the rated output current of the installed PS module, and the total backplane current consumption of all installed I/O modules. This data is available in TIA Portal’s hardware configuration power budget view or in the existing project’s system documentation.

© 2026 KNMKS. All rights reserved.
Original Source: https://knmks.com
Contact: [email protected] | +86 18359268345

Product Identification

Brand / Ecosystem

Siemens
Siemens

Model / Series

6ES7513-1AL02-0AB0
SIMATIC Series

Product Family

PLCs & Controllers

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

Pre-Quote Check

Exact SKU, brand, series, quantity, nameplate photos and destination country are checked before quotation

Specification & Inquiry Focus

Control platform

PLC, PAC and modular controllers

Common needs

CPU, rack, power and I/O expansion

Project support

Replacement, cabinet build and maintenance

Inquiry Support

• Model cross-checking before quotation
• CPU, power, rack and expansion module matching
• Support for replacement and project inquiry

What to Send Us

• Brand and exact model number: Siemens 6ES7513-1AL02-0AB0
• Quantity and required delivery time
• Application, replacement requirement or nameplate photo
• Destination country and shipping preference