User manual

Page 18
EL 9000 T Series
www.elektroautomatik.de
[e-mail]
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
1.9.5.5 USB-Port (Front side)
The frontal USB port, located below the LED “Power”, is intended for the connection of standard USB sticks. This
can be used for uploading or downloading of sequences for the arbitrary function generator or data recording dur-
ing all operation modes.
USB 2.0 sticks must be FAT32 formatted and have a maximum capacity of 32GB.Allsupportedlestypesfor
loading must be held in a designated folder in the root path of the USB drive in order to be found. This folder must
be named HMI_FILES, such that a PC would recognise the path G:\HMI_FILES if the drive were to be assigned
the letter G.
ThecontrolpaneloftheelectronicloadcanreadthefollowingletypesfromanUSBstick:
wave_u<arbitrary_text>.csv
wave_i<arbitrary_text>.csv
Function generator for an arbitrary function on voltage (U) or current (I).
The name must begin with wave_u / wave_i,therestisuserdened.
prole_<nr>.csv Saveduserprole.Thenumberinthelenameisacounterandnotrelatedtothe
actualuserprolenumberintheHMI.Amax.of10lescanbestoredbytheHMI.
ThecontrolpaneloftheelectronicloadcansavethefollowingletypestoanUSBstick:
battery_test_log_<nr>.csv File with log data recorded from the battery test function. For a battery test log,
data different and/or additional to log data of normal logging is recorded. The <nr>
eldinthelenameisautomaticallycountedupifequallynamedlesalready
exist in the folder.
usb_log_<nr>.csv Filewithlogdatarecordedduringnormaloperationinallmodes.Thelelayout
is identical to the those generated from the Logging feature in EA Power Control.
The<nr>eldinthelenameisautomaticallycountedupifequallynamedles
already exist in the folder.
prole_<nr>.csv Saveduserprole.Thenumberinthelenameisacounterandnotrelatedtothe
actualuserprolenumberintheHMI.Amax.of10lestoselectfromisshown
whenloadingauserprole.
1.9.6 USB port (back side)
The USB-B port on the back side of the device is provided for
communicationwiththedeviceandforrmwareupdates.The
included USB cable can be used to connect the device to a
PC (USB 2.0 or 3.0). The driver is delivered on the included
USB stick and installs a virtual COM port. Details for remote
control can be found on the included USB stick or the web
site of Elektro-Automatik.
The device can be addressed via this port either using the
international standard ModBus protocol or by SCPI language.
The device recognises the message protocol automatically.
If remote control is going to be activated, the USB interface has no priority over any other interface and can there-
fore only be used alternatively to them. However, monitoring is always available, no matter if and via what interface
the device is remotely controlled.
1.9.7 “Sense” connector (remote sensing)
In order to compensate for voltage drops along the DC cables, the Sense input (between the DC
input terminals) can be connected to the source. The device will automatically detect when the
senseinputiswired(Sense+)andcompensatetheinputvoltageaccordingly.Themaximumpos-
siblecompensationisgiveninthetechnicalspecications.
Usingremotesensingiseffectiveinconstantvoltage(CV)operation.Keepingthisinputconnected
in other operation modes should be avoided as the typically thin lines can increase the oscillation
tendency. Also see section 3.2.5 for more about this topic.