What the mature status means for your panel
The 6ES7478-2BA00-0AC0 is a mature module. Verify firmware revision matches your CPU before ordering a swap. No formal successor exists; source this exact order code through surplus channels.
Siemens 6ES7478-2BA00-0AC0 MSM478 Mass Storage Module, Matur
MPN6ES7478-2BA00-0AC0
Siemens S7-400 MSM478 mass storage module, 6ES7478-2BA00-0AC0, 1.13 kg, mature lifecycle.
$970.58Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 1.13 kgs |
Product details
Frequently asked questions
What replaces the 6ES7478-2BA00-0AC0?
No official successor order code has been assigned by Siemens for this MSM478 mass storage module. The replacement path is to source the exact 6ES7478-2BA00-0AC0 through surplus or broker channels.
MPN
6ES7478-2BA00-0AC0