Siemens 6ES7516-3AN02-0AB0 Simatic PLC CPU Module

Siemens 6ES7516-3AN02-0AB0 is a SIMATIC S7-1500 CPU (1516-3 PN/DP) designed as the central processing unit for industrial automation systems that rely on PROFINET and PROFIBUS networking. It provides 1 MB of program memory and 5 MB of data memory, and includes three networking interfaces: PROFINET IRT with a built‑in 2‑port switch, PROFINET RT, and PROFIBUS, delivering 10 ns bit timing; a SIMATIC Memory Card is required for operation. This CPU is listed as a spare part with Siemens noting a successor model 6ES7516-3AP03-0AB0, and it is configurable in TIA Portal from version V17 (firmware V2.9) or higher (V16/V2.8) or higher, with older portal versions able to configure the AN01 variant.