6ES5490-7LB12| SIEMENS SIMATIC S5 490

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Technical information for SIEMENS 6ES5490-7LB12

1. Memory Size: The 6ES5490-7LB12 module has a memory size of 64 KB (kilobytes).

2. Type: It is an EPROM (Erasable Programmable Read-Only Memory) module.

3. Compatibility: This module is compatible with Siemens Simatic S5-95U PLCs and possibly other models in the Simatic S5 series.

4. Functionality: EPROM modules like the 6ES5490-7LB12 are used to store the PLC program and possibly system configuration data. EPROMs are non-volatile memory modules, meaning they retain their stored data even when power is removed, but they require special programming devices (EPROM programmers) to erase and reprogram them.

5. Installation: The module is typically installed in a dedicated slot in the PLC rack and interfaces with the PLC's CPU via the backplane bus.

6. Programming: To update the program stored in the EPROM module, it needs to be removed from the PLC rack and programmed using an EPROM programmer. This process involves erasing the existing program and writing a new one.

7. Usage: EPROM modules store the PLC program, which controls the industrial automation process. They ensure that the program remains intact and operational even after power cycles.

8. Documentation: For detailed installation instructions, programming guidelines, and usage specifications, refer to the Siemens documentation specific to the Simatic S5 series and the 6ES5490-7LB12 module.

9. Replacement: When replacing or upgrading EPROM modules like the 6ES5490-7LB12, ensure compatibility with the specific PLC model and version of the programming software being used.

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