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Siemens 6ES7518-4AP00-0AB0 — PLCs (Programmable Logic Controllers)

Siemens 6ES7518-4AP00-0AB0 CPU 1518-4 PN/DP, 32 Gbyte SIMATIC card

MPN6ES7518-4AP00-0AB0
NRND

Siemens 6ES7518-4AP00-0AB0 — now in phase-out and being discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.

$5,207.00 – $11,467.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jun 2026

Specifications

6ES7518-4AP00-0AB0 — Processor & Memory
ParameterValue
Execution time, bit operations (typ.)1 ns
Execution time, word operations (typ.)2 ns
Execution time, floating-point arithmetic (typ.)6 ns
Size, max.16 kbyte
6ES7518-4AP00-0AB0 — I/O
ParameterValue
Input data area32 kbyte; All inputs are in the process image
Output data area32 kbyte; All outputs are in the process image
6ES7518-4AP00-0AB0 — Programming
ParameterValue
Programming language: FBDYes
Programming language: LADYes
Programming language: SCLYes
6ES7518-4AP00-0AB0 — Electrical
ParameterValue
Rated value (DC)24 V
Current consumption (rated)1.55 A
Permissible range, lower limit (DC)19.2 V
Permissible range, upper limit (DC)28.8 V
Power loss (typ.)24 W
6ES7518-4AP00-0AB0 — Environmental
ParameterValue
Installation altitude, max.5 000 m; Restrictions for installation altitudes > 2 000 m, see manual
Temperature, min.-40 °C
Temperature, max.70 °C
Operating temperature, min. (horizontal mounting)0 °C
Operating temperature, max. (horizontal mounting)60 °C; Display: 50 °C, at an operating temperature of typically 50 °C, the display is switched off
6ES7518-4AP00-0AB0 — Mechanical
ParameterValue
Width175 mm
Height147 mm
Depth129 mm
Weight (approx.)2 079 g

Product details

Overview

The 6ES7518-4AP00-0AB0 is a Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP processor module, the top-tier controller in the 1518 line, with one PROFINET port and support for up to 32 Gbyte SIMATIC memory cards. It runs on 24 W and is rated IP20 for in-cabinet mounting, weighing 2079 g with dimensions 175 mm wide by 147 mm high by 129 mm deep.

As the central controller of an S7-1500 station the CPU 1518-4 PN/DP executes the user program and coordinates I/O and communication modules on the backplane. Its single PROFINET port handles plant networking, MRP (Media Redundancy Protocol) for ring topologies, and MODBUS TCP for legacy device integration. The 32 Gbyte SIMATIC memory card maximum is the figure that sizes the application it can hold — enough for large machine logic with extensive data handling, recipe management, and firmware updates, far beyond the entry-level S7-1200 CPUs. A maximum of 8 communication modules (CMs/CPs) for PROFIBUS, PROFINET, or Ethernet can be inserted, giving the 1518-4 PN/DP the flexibility to integrate multiple fieldbus networks from one controller.

The 6ES7518-4AP00-0AB0 is an active production part in Siemens' SIMATIC S7-1500 portfolio. No end-of-life notice or phase-out date has been published. As a current-generation CPU it is normally sourced to order; confirm current lead time and minimum order on the quote.

Pricing & sourcing

The 6ES7518-4AP00-0AB0 is an active high-end CPU normally sourced to order; confirm current lead time and minimum order on the quote.

MPN
6ES7518-4AP00-0AB0