Siemens 6ES7954 Series Logic Module for Use with SIMATIC S7 PLCs

This memory card from Siemens is compatible with SIMATIC S7 PLCs (programmable logic controllers) and offers a convenient way to retain your system's essential data. It accommodates a minimum of 500,000 write or delete operations to give your system plenty of capacity to record and remove data as needed. Its compact size of 32 (height) x 24 (width) x 2.1mm (depth) makes it portable and simple to insert into your PLC's memory drive. Use this memory card to store data in a range of computing and automation applications.

• Memory of 4MB (megabytes) provides ample storage capacity
• Retains data for 10 years after final programming action for long-lasting, safe storage of important data

Flash-EPROM (erasable programmable read-only memory) is a type of non-volatile memory, meaning this memory card retains data even when the power is switched off. As its name implies, a memory card with this type of memory can be erased and reprogrammed, so you can easily free up space as needed to make room for additional data.