Siemens 6ES5374-2KL21 Memory Card

Product manual:

Main features:
Series: SIMATIC S5
Model: 6ES5374-2KL21
Storage type: EPROM (erasable read-only memory), very suitable for applications that require long-term data retention.
Capacity: Provides a large storage capacity, specifically 256K bytes.
Data persistence: EPROM is a non-volatile memory that means data remains unchanged even after a power outage, making it suitable for long-term data storage of critical tasks.
Compatibility: Compatible with multiple CPU modules of SIMATIC S5 series, such as S5-135U and S5-155U.
Application scenarios:
Complex control system: used to store complex control programs and large amounts of data, suitable for high demand industrial automation systems.
Long term data retention: Suitable for use in environments that require long-term storage of important programs and control data, ensuring that data is not lost when the power is disconnected.
Large scale automation system: used in large production lines and process control systems, supporting a wide range of automation tasks and data management requirements.
Technical specifications:
Storage capacity: 256K bytes, suitable for storing large-scale user programs and large amounts of data.
Storage type: EPROM, ensuring data retention even after power failure.
Interface type: Standard SIMATIC S5 slot interface, easy to integrate with various S5 series PLC modules.
Data security: Once data is written, non-volatile memory ensures that the data remains intact even in the event of a power outage or system failure.

Product details picture:

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