Siemens 6ES7954-8LC04-0AA0 SIMATIC S7 Memory Card 4 MB Flash PLC Memory Card

The Siemens 6ES7954-8LC04-0AA0 is a SIMATIC S7 memory card with 4 MB of 3.3 V Flash-EPROM storage for S7-1x00 CPUs and SINAMICS drives. It stores the user program, configuration, and firmware, rated for a minimum of 500,000 write/delete operations before data-retention limits apply. The card measures 24 x 32 x 2.1 mm and weighs 3 g.

Technical Specifications

Selection Notes

4 MB covers the program, configuration, and firmware for a single CPU or SINAMICS drive; check the project's retentive and load memory size before ordering — a project over 4 MB needs a larger-capacity card from the same SIMATIC memory card family. The 500,000-cycle write/delete rating matters most where recipe or parameter data is logged to the card during operation rather than a static program that is written once.

Applications

Loading and retaining the user program, hardware configuration, and firmware on SIMATIC S7-1x00 CPUs and SINAMICS drive controllers, and transferring a program between controllers without a PG/PC connection.