Siemens 6ES5943-7UB11
Plant PE · Line 2 · Mazak VCN-530C
Health
81/100 · low confidenceReplace soon
Remaining life: 1.5–4.5 years
Based on: Label date code (age floor) · Thermal snapshot (walkthrough) simulated sensor data
Life used since install (2002)
135%
Expected end of life: 2028 (middle of the typical life range)
discontinued SIMATIC S5
Recommended action
Discontinued: order the successor 6ES7515-2AM02-0AB0 from the manufacturer or your usual distributor by Apr 2028 (~$4,990, ~125 days + migration work). A used or refurbished 6ES5943-7UB11 is only a stopgap.
Order by: April 2028
Fastest delivery: ~3 days + 14-day safety buffer before expected end of life
Financial view
Not a line stopper: no downtime exposure counted.
Money model says: migrate
discontinued with few trusted listings: plan the move to an alternative
Part value (real listings): $949–$4,267
Where to get one (8 options)
| Source | Seller | Condition | Price | Delivery | Warranty | Trust |
|---|---|---|---|---|---|---|
| Successor, from manufacturer Recommended 6ES7515-2AM02-0AB0: needs migration | Authorized distributor E | new | $4,990 +$25 ship | 125 days | 12 mo | 97 sample listing |
| Marketplace | aslme78 not authorized: counterfeit risk, test on arrival | used | $32 +$65 ship | - | none | - |
| Marketplace | maranos_de not authorized: counterfeit risk, test on arrival | used | $72 +$55 ship | - | none | - |
| Marketplace | chipsgate-top not authorized: counterfeit risk, test on arrival | new surplus | $849 | - | none | - |
| Refurbisher | Radwell (refurbished) not authorized: counterfeit risk, test on arrival | refurbished | $949 | 3 days | 24 mo | - |
| Refurbisher | Radwell (never used, Radwell packaging) not authorized: counterfeit risk, test on arrival | new surplus | $3,372 | 3 days | 24 mo | - |
| Refurbisher | Radwell (never used, original packaging) not authorized: counterfeit risk, test on arrival | new surplus | $4,565 | 9 days | 24 mo | - |
| Successor, from manufacturer 6ES7515-2AM02-0AB0: needs migration | Manufacturer direct C | new | $5,070 +$45 ship | 170 days | 12 mo | 97 sample listing |
Recommended order: a spare already on a shelf, then the manufacturer or your usual authorized distributor (for discontinued parts, the official successor), then other sources. Sample listings are illustrative until real marketplace data is connected.
Evidence
The label photo image recognition read:
PE-IMG0128 · rendered photo · quality: ok
Image recognition read: 6ES5943-7UB11 B
Read confidence 0.9 · overall 0.9 · reviewer not yet reviewed
Lifecycle source and alternatives
S5-115U CPU 943
Official successor: 6ES7515-2AM02-0AB0
- 6ES7515-2AM02-0AB0 · successor · migration: new firmware/program conversion, wiring and mounting check
- Similar-part search · similar · TBD: similar-part search (possible Physna collaboration)