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The 6ES5374-1FG11 functions as a removable storage module for SIMATIC S5 systems. This memory card uses EEPROM technology for non-volatile program retention. You can rely on it for critical machine code or firmware storage without battery backup.
Key Technical Parameters
The table below lists all essential technical specifications for this memory card.
| Specification | Details |
|---|---|
| Part Number | 6ES5374-1FG11 |
| Product Type | Memory Card (EEPROM) |
| Compatibility | SIMATIC S5 PLC systems |
| Memory Technology | EEPROM (electrically erasable) |
| Storage Capacity | 64 KBytes |
| Write Cycles | 10,000 minimum |
| Data Retention | 10 years minimum |
| Dimensions (W x H x D) | 45 mm x 32 mm x 8 mm |
| Weight | Approx. 0.05 kg |
| Interface Type | Edge connector for S5 CPU slot |
| Voltage | 5V DC (bus-powered) |
| Battery Backup | Not required (non-volatile) |
| Programming Method | In-system or external programmer |
| Operating Temperature | 0°C to 55°C |
Physical Characteristics and Installation
This memory card weighs only 0.05 kg, making it extremely lightweight. Its compact dimensions measure 45 mm x 32 mm x 8 mm. You simply insert the card into the dedicated slot on your S5 CPU. The edge connector provides a secure electrical interface. No additional cables or mounting hardware are necessary. A write-protect switch prevents accidental data overwrites.
Memory Technology and Data Retention
The 6ES5374-1FG11 uses EEPROM technology for flexible reprogramming. Unlike EPROM, you can erase this card electrically without UV light. The card retains all stored data for 10 years minimum without external power. You can rewrite the memory up to 10,000 times for development or updates. Consequently, this feature makes it ideal for frequent program changes.
Usage and Compatibility
First, program this memory card using a compatible EEPROM programmer. Alternatively, some S5 CPUs allow in-system programming. Then, insert the 6ES5374-1FG11 into your SIMATIC S5 CPU slot. Finally, power up the system to load the stored program. The card works seamlessly with S5-90U, S5-95U, S5-100U, and S5-115U models. The non-volatile design eliminates battery maintenance concerns.