The Siemens 6ES7478-1AP00-0AA0 is a 16 MB memory expansion module for the SIMATIC S7/M7 family, designed specifically for the PG 720 and PG 720C programming devices, as well as the M7-FM 456-4 and CPU 488-4 controllers. This is a targeted spare for legacy S7/M7 systems — not a general-purpose expansion for the broader S7-300/400 line. If you're supporting a plant floor with these specific controllers or programming devices, this is the exact memory module to hold as a critical spare.
Siemens 6ES7478-1AP00-0AA0 Memory Expansion, 16 MB
MPN6ES7478-1AP00-0AA0
Siemens SIMATIC S7/M7 memory expansion, 16 MB, for PG 720/720C, M7-FM 456-4, CPU 488-4.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.0045 kgs |
Product details
Frequently asked questions
What devices is this memory expansion compatible with?
It is designed for the SIMATIC S7/M7 PG 720 and PG 720C programming devices, plus the M7-FM 456-4 and CPU 488-4 controllers.
How do I source this part?
This module is sourced to order against an RFQ through independent inventory channels. Given its mature lifecycle, securing a unit now is advisable if you are supporting legacy equipment.
MPN
6ES7478-1AP00-0AA0