2 ratings:

3 out of 5

Rate this Document

Letter of Volatility for M-Series DAQ Devices

Hardware: Multifunction DAQ (MIO)>>M Series

Problem:
I need official confirmation that sensitive data passing through National Instruments M-Series DAQ boards will be erased when the device loses power.

Solution:
Here is a list of the current information on our M-Series DAQ boards. The list below contains the types of memory in each device, the amount, and whether or not the information stored in that memory is retained. Volatile memory loses its contents when the device is powered off, while nonvolatile memory retains its contents when the device is powered off.

Storage Type	Size	Volatility	Access Restrictions
EEPROM	2k x 8-bit	Nonvolatile	The device configuration area is not accessible from any API. The section that stores calibration constants and digital power-up states does have portions that are user-accessible.
622X and 625X Analog Input FIFO	4k x 16-bit	Volatile	Hardware controlled. Not user-accessible.
628X Analog Input FIFO	2k x 32-bit	Volatile	Hardware controlled. Not user-accessible.
622X, 625X, 628X Analog Output	8k x 16-bit	Volatile	User has write access via API.
622X, 625X, 628X Counter Input FIFO	2k x 32-bit	Volatile	Hardware controlled. Not user-accessible.
622X, 625X, 628X Digital Input FIFO	2k x 32-bit	Volatile	Hardware controlled. Not user-accessible.
622X, 625X, 628X Digital Output FIFO	2k x 32-bit	Volatile	User has write access via API.

Related Links:
KB 3CPA3SHS: Letter of Volatility for E-Series DAQ Devices
KB 41O95AE1: Letter of Volatility for S Series DAQ Devices

Attachments:





Report Date: 04/12/2006
Last Updated: 02/02/2007
Document ID: 3WBH6BE1

Your Feedback!	Poor  |  Excellent							Yes	No
Document Quality?							Answered Your Question?
	1	2	3	4	5
Document needs work? Please tell us why.
Please Contact NI for all product and support inquiries.