Siemens 6ES5374-1KJ11 Memory Card

Programmable logic controllers require reliable program storage for system operation. The Siemens 6ES5374-1KJ11 memory card delivers this essential function for SIMATIC S5 systems. This card stores user programs, configuration data, and system parameters. It enables quick program transfer between controllers and simplifies system backup.

Technical Architecture and Specifications

This memory card features a compact form factor for direct insertion into S5 CPUs. Its dimensions measure 8.5 cm in width and 5.5 cm in height. The Siemens 6ES5374-1KJ11 weighs approximately 0.05 kilograms for secure handling. It interfaces with the CPU via a card-edge connector with gold-plated contacts. This connector ensures reliable electrical connection for data transfer.

The internal assembly contains a single printed circuit board with non-volatile memory chips. Engineers will note the EPROM technology that retains data without battery backup. This design eliminates the need for periodic battery replacement. The card operates on 5 V DC power supplied by the CPU during access. It consumes minimal current for extended reliability.

Memory Specifications

The Siemens 6ES5374-1KJ11 provides dedicated memory capacity for S5 program storage. It supports the storage of both code blocks and data blocks. For installation, it inserts directly into the memory card slot on the CPU front panel. The card requires no additional configuration or addressing. Status indicators on the CPU display memory card presence and access activity. You can explore similar industrial memory solutions here for reference.

Specification	Detail
Model	6ES5374-1KJ11
Manufacturer	Siemens
Product Line	SIMATIC S5
Dimensions (W x H)	8.5 cm x 5.5 cm
Weight	0.05 kg
Memory Type	EPROM (Non-Volatile)
Power Supply	5 V DC from CPU
Connector Type	Card-Edge with Gold Contacts
Data Retention	Battery-Free
Compatibility	S5 CPU Memory Card Slot

System Integration and Reliability

The Siemens 6ES5374-1KJ11 operates reliably across standard industrial environments. It functions within a temperature range of 0°C to 60°C. The EPROM technology retains program data indefinitely without power. Maintenance personnel can transfer programs between controllers without programming devices. This card simplifies system backups and disaster recovery procedures. Users can store multiple program versions for different machine configurations.