The Siemens 6ES7488-4GY00-0AC0 is a CPU488-4 central processing unit for the S7-400 programmable logic controller family. It's the brain of a rack-based automation system, executing the control logic and coordinating I/O across the backplane. This is a mature-lifecycle part, meaning it's no longer in active volume production but remains available through the aftermarket and surplus channel. If you're filling a BOM line for an installed S7-400 system, this is the exact order code to specify.
Siemens 6ES7488-4GY00-0AC0 CPU488-4 Central Module, Mature L
MPN6ES7488-4GY00-0AC0
Siemens S7-400 CPU488-4 central processing unit, order code 6ES7488-4GY00-0AC0, mature lifecycle, 1.54 kg.
$849.63Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 1.54 kgs |
Product details
Frequently asked questions
Will the 6ES7488-4GY00-0AC0 drop into a panel designed for the 6ES7314-1AE03-0AB0?
No. The 6ES7488-4GY00-0AC0 is an S7-400 family CPU, while the 6ES7314-1AE03-0AB0 is an S7-300 CPU. They use different rack form factors, backplane buses, and mounting systems. They are not mechanically or electrically interchangeable without a full panel redesign.
MPN
6ES7488-4GY00-0AC0