The Siemens 6ES7591-1BB00-0AA0 is a 70 mm display module spare part for S7-1500 CPUs. Built for the control cabinet, it sits on the CPU front slot and shows diagnostics, alarms, and process values without needing a programming device.
Sourcing takeaway
No alternate-pin swap or second-source option on this line — it's a direct Siemens spare. But because it's active and standard-class, it can be quoted to order without last-time-buy deadlines. Drop an RFQ with your CPU model to confirm fitment.
