The MEF 004 EPROM memory card stores firmware and program data for Schneider automation controllers. This compact cartridge lets engineers transfer logic between systems quickly. Technicians value it for reliable non-volatile storage in legacy installations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | EPROM Memory Card |
| Compatibility | Schneider Automation Controllers |
| Memory Capacity | 32 KB EPROM |
| Memory Type | UV-Erasable Programmable ROM |
| Interface | Card Edge Connector, 28 Pins |
| Dimensions | 85 mm x 55 mm x 12 mm |
| Weight | Approximately 0.06 kg |
| Component Count | 6 Active Electronic Components |
| Energy Storage | None Required (Non-Volatile) |
| Voltage Rating | 5 VDC |
| Access Time | 250 ns |
| Operating Temperature | 0°C to 60°C |
| Relative Humidity | 5% to 95%, Non-Condensing |
Memory and Storage Design
The card carries 32 KB of UV-erasable programmable read-only memory. Therefore, it retains program data without any backup power source. Furthermore, a quartz window allows ultraviolet erasure for reprogramming cycles. Consequently, engineers reuse the cartridge across multiple projects.
Interface and Installation
A 28-pin card edge connector links the MEF 004 to the host controller slot. As a result, program transfer happens through direct physical insertion. Additionally, the compact housing fits standard card cages without adapters.
Performance Characteristics
The memory delivers 250 ns access time for fast instruction retrieval. Moreover, it operates on a standard 5 VDC supply from the controller. Consequently, it matches the timing needs of legacy Schneider processors.
Handling Notes
Operators should cover the quartz window with opaque tape during normal use. The card tolerates 0°C to 60°C within industrial control cabinets. However, users should avoid excessive bending of the card edge contacts.
Details
| Weight | 0.15 kg |
|---|---|
| Dimensions | 110 × 72 × 38 mm |
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