Sd Card Slot; Factory Reset Button; Ethernet Connector; Ground Connector - Measurement Computing WebDAQ 504 User Manual

WebDAQ 504 User's Guide
Label State
3: ERROR Blinking yellow
Off
4: MEDIA Blinking yellow
Steady yellow
Blinking green
Steady green
WebDAQ LEDs behave differently when software is being updated on the device. The following table defines
the LED states during a software update.
LED State
All LEDs Solid yellow
POWER Blinking yellow
STATUS Blinking green
Blinking yellow
ERROR Blinking green
Blinking yellow
Refer to Updating WebDAQ firmware on page 19 for more information about WebDAQ firmware.

SD card slot

The SD slot accepts SD (Secure Digital), SDHC, SDXC, MMC, and TransFlash memory cards. Memory cards
can be ejected using the web interface or the hardware
start/stop an acquisition.
When removable media is plugged into the WebDAQ, the operating system opens it for writing. Use the
button (page 14) or web interface to unmount the SD card before removing.
Acquiring data at high speeds can generate large file sizes
If you expect to acquire a large amount of data to a single file when logging to external media, do not use media
formatted with the FAT32 file system. FAT32 is limited to a 4 GB maximum file size. If the log file on FAT32
media grows beyond that size, a "File too large" error is returned and the acquisition stops. Before starting a
logging session of this type, reformat the media using a different file system such as NTFS. Refer to
the WebDAQ help FAQ for more information about file formats.

Factory reset button

The recessed button labeled
When pressed, the default settings are written to the device and the WebDAQ is rebooted. Refer to page 11 for a
list of the default settings that are restored.

Ethernet connector

The WebDAQ has one 10 Base-T/100 Base-TX, auto-negotiation, high-speed communication port. The port
connector is an RJ-45, eight-position connector. The Ethernet port accepts shielded or unshielded twisted pair
cable. The maximum communication distance without using a repeater is 100 m (328 ft).

Ground connector

The WebDAQ ships with a screw in the connector labeled
lug to a 14 AWG (1.6 mm) wire. Connect the ring lug to the grounding screw on the WebDAQ rear
panel. Attach the other end to a safety ground.
Description
Error condition is detected. This LED blinks even when the software is
configured to ignore the error
Error state is cleared when the next schedule starts.
No error detected
A job is configured to log to external media, but the job hasn't started yet;
pushbutton will not let you eject media
External media is inserted into the SD card slot or USB storage port
Currently logging to an external SD card or USB storage device
Media has been made safe for removal using the function button, but has not
been removed
LED states – software update mode
Description
Software update is starting
Software update is running
Update file is located; device is being updated
Update file cannot be located; insert media with update file
Update is successful; device will reboot in approximately 5 seconds
Update failed; user must retry
restores network and alarm settings to factory default values.
CONFIG RESET
15
button, unless the button is configured to
FUNC
. To ground the WebDAQ chassis, attach a ring
#6-32
Functional Details
FUNC