Hidden Menu; Memory; Clock; Recorder Construction - Siemens SIREC D Handbuch

D. Hidden Menu -
passcode protected and can only be accessed by
pressing a certain combination of buttons. The
hidden menu allows the user to Initialize the re-
corder, perform ADC Control and perform Diag-
nostics on the recorder. Refer to Chapter 4.

1.2.5 Memory.

Memory in the Recorder is battery backed. This
enables the unit to recover in the event of a mains
failure with minor data loss. Any programming will
be protected in the event of power removal and
past browse data is maintained in the off state. The
battery is the rechargeable type (Nicad. Non-
rechargeable lithium available as a special option)
and will keep memory intact for at least 12 months.

1.2.6 Clock.

A real time clock keeps time and
date in the event of a power loss. It operates off the
same battery as the memory.

1.2.7 Recorder Construction.

Display Recorder features modular construction.
Most options are field installable (Alarms, Commu-
nication, Loop Power Supply, Channel expansion)
with little effort. Power Supply and Analog condi-
tioning modules are conveniently accessible for
fast and simple troubleshooting and/or removal. All
operating controls and indicators are located on the
touch screen panel and the Disk Drive or PCMCIA
slot is located conveniently behind a protective
panel on the front of the unit.

1.3 RECORDING OPTIONS

1.3.1 General.

The user can order the Re-
corder with one of two storage mediums, a stan-
dard PC compatible floppy disk drive or an indus-
try-standard PCMCIA memory card drive. The
merits of the two are discussed briefly below. The
Data-Chart Companion software provided with the
unit supports both media types.

1.3.2 Floppy Disk Drive.

1.44 Megabytes of data which translates to ap-
proximately 700,000 data samples (each sample is
16 bits). The disks are magnetic media and the
drives are mechanical.
This limits their use in harsh environments where
vibration or temperature is a problem.
Siemens AG C79000-G7374-C211-01
SIREC D Manual
This menu item may be
All the Random Access
The disks can store

1.3.3 PCMCIA Memory Card.

PCMCIA card (Personal Computer Memory Card
Interface Association) is a small solid state card
about the size of a credit card and about 0.125 inch
(3mm) thick containing either battery backed up
Static RAM or the newer Flash memory. The Flash
memory cards are significantly less expensive than
the battery backed RAM cards and are available in
larger capacities. The memory cards are more
expensive than floppy disks, but are not prone to
the same vibration or temperature constraints. Both
memory card types up to 20 Megabytes in size (up
to 220 Mbyte with firmware release 2.5 or higher)
are supported which is approximately 10,000,000
data samples. The cards do require a special drive
in the PC.
The following is a recommendation of
tested ATA Flash cards:
The
Brand
Sandisk

1.4 SUPPLIED EQUIPMENT

1.4.1 Equipment Listing.

items are supplied with your SIREC D Display Re-
corder:
1 - Floppy Disk or PCMCIA Card (depending upon
options chosen)
1 - User Manual
General Description
NOTE
Size
4 – 20 Mbyte
The following
The
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