6ES7 513-1AL02-0AB0 SIEMENS central processing unit with work memory
Description
The 6ES7 513‑1AL02‑0AB0 is a central processing unit (CPU) for the modular PLC family SIMATIC S7-1500. Its CPU type designation is CPU 1513‑1 PN.It provides work memory of 300 KB for program, and 1.5 MB for data,
which is the capacity for user program blocks, data blocks, variable memory, etc.For communications, it features a built‑in PROFINET IRT interface with a 2‑port switch — so it supports Ethernet
(Industrial Ethernet / PROFINET) connectivity natively, useful for networked I/O or distributed automation architecture.Form factor / mounting: it's designed to mount on the standard
S7‑1500 mounting rail (DIN‑rail) along with other I/O and expansion modules as part of a rack.It supports typical PLC programming languages and functions common to
S7‑1500: OB/FB/FC/DB blocks, timers, counters, and so on — suitable for mid‑sized automation tasks, machine control, process control, distributed I/O
systems.Important note about lifecycle: According to the official product catalog, 6ES7 513‑1AL02‑0AB0 has been classified as a spare‑part / legacy
product: it has been discontinued for new production as of 2025‑04‑01, replaced by a successor model
6ES7 513-1AM03-0AB0 with larger memory and higher performance.
Frequently Asked Questions About 6ES7 513-1AL02-0AB0
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Q: What is the 6ES7 513‑1AL02‑0AB0 CPU used for?
A: It serves as the “brain” of an S7‑1500 PLC system — running user logic, handling I/O exchanges (via connected modules), communicating over PROFINET, and
managing automation tasks like machine control, process control, or distributed automation.
Q: What kind of applications is it suited for?
A: Medium‑size automation projects: manufacturing lines, distributed I/O setups, networked controllers, integration with PROFINET I/O devices.
Also suitable where an Ethernet‑based network (PROFINET) is required.
Q: Is that enough for large programs?
A: For many standard or moderately complex automation tasks, yes — but for very large projects, big data handling, or heavy logic,
the memory might be limiting. Because this CPU has been superseded, newer CPUs offer more memory.
Q: How much memory does it have?
A: 300 KB for user program code + 1.5 MB for data (variables, data blocks, internal data, etc.).
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