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.
Function & operation
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.
Lifecycle & availability
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.