CONTACTLESS MEMO CARDs

   With its encapsulated construction and contactless data and energy transfer systems, the MEMO CARD is ideal for use under extreme conditions.

   MEMO CARDs are a hermetically sealed type of storage medium the size of a credit card, designed for use under extreme rugged environmental conditions.
   MEMO CARDs use a contactless energy supply with inductive energy through the read/write MEMO DRIVE unit. Data transmission between the DRIVE and the CARD is also contactless. Data storage on the CARD is fully electronic in solid state semiconductors. This type of storage technology ensures that data is stored even without power supply. SRAM cards rely on their own encapsulated interchangeable battery.

Absolutely safe data storage

Reliable function under extreme rugged conditions

Failsafe and comfortable card change

Troublefree data transport even by unskilled users

   It is the sum of these properties that make MEMO CARDs an ideal,transportable memory medium for extreme environments. Their simple handling allows for easy usage even by untrained personnel.

FEATURES

The complete storage capacity of a MEMO CARD is freely available for linear usage:

High data security is ensured with automatic checksum testing of every data batch.

Quick card control through selective checksum testing of a particular defined segment.

The card snaps into place in the DRIVE, reducing the chances of it being jostled out of place by vibrations or shocks.

A password protects against unauthorised writing to or reading from the CARD.

TYPES OF MEMORY

   EEPROM Memory (Electrical Erasable PROM’s) can be electronically written and read byte by byte. Writing new data into a storage cell automatically writes over and erases old data thus making a separate erasure cycle for old data unnecessary. Data is stored with no need for an external power supply or internal battery.

   FLASH PROM memory can be electronically read and written byte by byte. However, once programmed, existing storage cells data must be erased by the user before new data can be entered. Here too, data is stored with no need for an external power supply or internal battery.

   SRAM memory can be electronically read and written byte by byte. An erasure cycle for old data is not necessary. Use of SRAM memory does however, require an internal buffer battery.

CARD FUNCTIONS

   With MEMO CARDs the circuit designer need not worry about the electrical properties of the storage CARD or the timing of the semiconductor used for data storage.

   Power is supplied to MEMO CARDs by the MEMO DRIVE when they are in place. Data transfer between the CARD and the DRIVE follows an internal protocol. Since data flow is controlled by intelligent logic in the CARD as well as the reader DRIVE, the host system has to process only a simple command protocol.

   Connection of a MEMO CARD to a micro processor system is described on the data sheet accompanying the MEMO DRIVE.

APPLICATIONS

   MEMO CARDs with a small capacity, e.g. 128 bytes, are used to identify individuals, single jobs, or work pieces.

   Medium capacity MEMO CARDs, e.g. up to 128 KB, are often used to store design data about work pieces or machine parameters.

   High capacity MEMO CARDs, e.g. up to 8 MB, are used for data acquisition, program updates, and many more applications.

READ/WRITE INTERFACES

   In order to read or write the MEMO CARD, it must be inserted in a read/write interface, called a MEMO DRIVE.

   As a built-in option, MEMO DRIVEs can be connected via a parallel µP-bus or a serial interface.

   The external read/write station, called a MEMO OFFICE BOX, offers users a plug-n-play solution for connectivity to a serial printer port.

ELECTRIC PARAMETER

HANDLING AND USAGE

   Because of their sealed design the use of MEMO CARD is very easy. In designing the CARD, practically all conceivable handling errors have been anticipated:

Arrows show the correct direction for inserting the CARD.

Angled edges make insertion in the wrong direction impossible.

The individually markable labelling area remains visible even when the card is inserted.

PHYSICAL DIMENSIONS

   For all types of MEMO CARDs

CUSTOMIZED LABELS

   For individual graphic design on the MEMO CARD the slot of the DRIVE is designed to accommodate a 0.2 mm thick label, applied on the card.

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