Siemens 6ES5234-1AC11 is a memory/parameter entry module for the SIMATIC S5-210 microcomputer system. It provides 4 KB of CMOS RAM and features 12 EPROM receptacles, enabling storage of memory and parameter data for the S5-210 controller. It is used within legacy automation installations that deploy SIMATIC S5-210 controllers and require dedicated memory and parameter-entry capabilities.
