National Instruments 2 SD Card Memory Module NI 9802 Manuale utente
OPERATING INSTRUCTIONS AND SPECIFICATIONS
NI 9802
2 SD Card Memory Module
NI 9802 Operating Instructions and Specifications 2 ni.com
The National Instruments 9802 is an SD Card storage module that
can read from and write to SD Cards.
Note The NI 9802 is supported only in CompactRIO
active chassis, such as the cRIO-910x.
This document describes how to use the NI 9802 and includes
specifications for the NI 9802. For information about installing,
configuring, and programming the system, refer to the system
documentation. Visit ni.com/info and enter the info code
rdsoftwareversion to determine which software you need for
the modules you are using.
Note The safety guidelines and specifications in this
document are specific to the NI 9802. The other
components in the system might not meet the same safety
ratings and specifications. Refer to the documentation for
each component in the system to determine the safety
ratings and specifications for the entire system.
© National Instruments Corp. 3 NI 9802 Operating Instructions and Specifications
Safety Guidelines
Operate the NI 9802 only as described in these operating
instructions.
Hot Surface This icon denotes that the component may be
hot. Touching this component may result in bodily injury.
Safety Guidelines for Hazardous Locations
The NI 9802 is suitable for use in Class I, Division 2, Groups A, B,
C, and D hazardous locations; Class 1, Zone 2, AEx nA IIC T4,
and Ex nA IIC T4 hazardous locations; and nonhazardous
locations only. Follow these guidelines if you are installing the
NI 9802 in a potentially explosive environment. Not following
these guidelines may result in serious injury or death.
Caution Do not insert or remove SD Cards unless power
has been switched off or the area is known to be
nonhazardous.
Caution Do not remove modules unless power has been
switched off or the area is known to be nonhazardous.
NI 9802 Operating Instructions and Specifications 4 ni.com
Caution Substitution of components may impair
suitability for Class I, Division 2.
Caution For Zone 2 applications, install the system
in an enclosure rated to at least IP 54 as defined by
IEC 60529 and EN 60529.
Special Conditions for Hazardous Locations Use in Europe
This equipment has been evaluated as Ex nA IIC T4 equipment
under DEMKO Certificate No. 07 ATEX 0626664X. Each module
is marked II 3G and is suitable for use in Zone 2 hazardous
locations. If you are using the NI 9802 in Gas Group IIC hazardous
locations or in ambient temperatures of –40 °C ≤Ta ≤70 °C, you
must use the device in an NI chassis that has been evaluated as
Ex nA IIC T4 equipment.
Special Conditions for Marine Applications
Some modules are Lloyd’s Register (LR) Type Approved for
marine applications. To verify Lloyd’s Register certification, visit
ni.com/certification and search for the LR certificate, or
look for the Lloyd’s Register mark on the module.
Caution To meet radio frequency emission requirements
for marine applications, use shielded cables and install
© National Instruments Corp. 5 NI 9802 Operating Instructions and Specifications
the system in a metal enclosure. Suppression ferrites
must be installed on power supply inputs near power
entries to modules and controllers. Power supply and
module cables must be separated on opposite sides of the
enclosure and enter/exit through opposing enclosure
walls.
Inserting and Removing SD Cards
The NI 9802 has two SD Card slots into which you can insert
NI-approved SD Cards.
Note Using SD Cards that are not approved by NI might
invalidate specifications and result in unreliable
performance.
The card slots each have a door to protect the SD Cards while in
the module. Each door is connected to a switch that indicates to the
NI 9802 software when it is safe to read from or write to the
SD Card.
The NI 9802 has four LEDs that indicate which slots contain an
SD Card and if the SD Card is active. Refer to Figure 1 for the
designation of SD Card slots and LEDs. Refer to Table 1 for
NI 9802 Operating Instructions and Specifications 6 ni.com
descriptions of each of the LEDs on the NI 9802 and when it is safe
to remove SD Cards from the NI 9802.
Figure 1. NI 9802 Card Slots and LEDs
1 Present (Card 0)
2 Busy (Card 0)
3 Present (Card 1)
4 Busy (Card 1)
5 Card Slot Doors
6 SD Card Slot 1
7 SD Card Slot 0
5
6
7
2
4
1
3
© National Instruments Corp. 7 NI 9802 Operating Instructions and Specifications
LEDs
Table 1. LED Descriptions
LED SD Card Slot Description
Present (Card 0),
Green
SD Card Slot 0 This LED is lit when an SD Card is
in Slot 0 and the SD Card slot door
is closed.
Busy (Card 0),
Yellow
SD Card Slot 0 This LED is lit when the card in
Slot 0 is active. This LED is
flashing when the NI 9802 is
performing I/O on the card in
Slot 0. Do not remove the SD Card
while this LED is lit or flashing.
Present (Card 1),
Green
SD Card Slot 1 This LED is lit when an SD Card is
in Slot 1 and the SD Card slot door
is closed.
Busy (Card 1),
Yellow
SD Card Slot 1 This LED is lit when the card in
Slot 1 is active. This LED is
flashing when the NI 9802 is
performing I/O on the card in
Slot 1. Do not remove the SD Card
while this LED is lit or flashing.
NI 9802 Operating Instructions and Specifications 8 ni.com
SD Card Slot Doors
Do not open an SD Card slot door or remove an SD Card while the
yellow LED for that card is lit or flashing. If you open an SD Card
slot door while the yellow LED for that card is lit or flashing, the
NI 9802 software acts to protect the file system of the SD Card.
Refer to the software documentation for more information.
Caution Opening an SD Card slot door or removing an
SD Card while the yellow LED for that card is lit or
flashing might result in incomplete data.
You must close the slot door for the NI 9802 software to read from
or write to the SD Card.
Note Screw the slot doors closed completely using a
#1 Phillips screwdriver. Do not overtighten.
Sleep Mode
This module supports a low-power sleep mode. Support for sleep
mode at the system level depends on the chassis that the module is
plugged into. Refer to the chassis documentation for information
© National Instruments Corp. 9 NI 9802 Operating Instructions and Specifications
about support for sleep mode. You can enable sleep mode in
software. Refer to the driver software documentation for more
information.
Caution Do not enable sleep mode while either of the SD
Card slot yellow LEDs are lit or flashing. Enabling sleep
mode while either of the SD Card slot yellow LEDs is lit
or flashing might result in incomplete data.
Typically, when a system is in sleep mode, you cannot
communicate with the modules. In sleep mode, the system
consumes minimal power and may dissipate less heat than it does
in normal mode. Refer to the Specifications section for more
information about power consumption.
Specifications
The following specifications are typical for the range –40 to 70 °C
unless otherwise noted. Certification standards for some
specifications vary based on the system in which you use the
module.
NI 9802 Operating Instructions and Specifications 10 ni.com
Data Storage Characteristics
Number of SD Cards ........................ 2
Storage .............................................. 2 GB max storage for each
SD Card
Data transfer...................................... 2 MB/s read/write for one
SD Card at a time
MTBF ............................................... 2,106,312 hours at 25 °C;
Bellcore Issue 6, Method 1,
Case 3, Limited Part Stress
Method
Note Contact NI for Bellcore MTBF specifications
at other temperatures or for MIL-HDBK-217F
specifications.
Power Requirements
Power consumption from chassis
Active mode ............................... 400 mW max
Sleep mode ................................. 1 mA max
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