The Siemens Simatic S5 6ES5373-1AA61 is a 64 KB CMOS EPROM memory submodule designed for use with Simatic S5 series programmable logic controllers. This module provides reliable, non-volatile storage for PLC programs, configuration data, and setpoints. By utilizing EPROM technology, it ensures that critical control logic is retained even during total power loss, eliminating the reliance on battery-backed RAM and improving the overall stability of legacy automation systems.
This memory submodule is widely utilized in legacy industrial control environments, including power generation, chemical processing, and heavy material handling systems where permanent, reliable storage of control algorithms is required to prevent downtime.
| Model | 6ES5373-1AA61 |
| Memory Type | CMOS EPROM |
| Capacity | 64 KB |
| Operating Temperature | 0 to 60 deg C |
| Mounting | Plug-in module |
| Compatibility | Siemens Simatic S5 series |
No, the 6ES5373-1AA61 uses EPROM technology, which is non-volatile and does not require a battery to maintain its stored data.
Compatibility depends on the specific CPU model and its memory addressing capabilities. Please consult your Siemens Simatic S5 hardware manual to confirm that your specific CPU supports 64 KB EPROM submodules.
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