74
© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
Instruction Manual
PSI 8000 3U Series
Date: 05-03-2012
Operating the device
11.5 Networking
The figures below depict networking examples for the digital
control of multiple devices in star-shaped (USB, RS232, Ether-
net) or bus-like (CAN, GPIB, Profibus) configuration.
Limitations and technical specifications of the bus systems and
the interfaces apply.
With
USB
up to 30 units can be controlled with one PC, ap-
propriate USB hubs with custom power supply assumed.This
basically applies to RS232, too. Differences lie in the handling
and the cable lengths.
With
CAN
up to 30 power supplies per address segment can
be integrated into a new or existing CAN bus system. They
are addressed by the device node and the RID (see „7. Device
configuration“).
With
GPIB
there is a limitation of max. 15 units on one bus, con-
trolled by a GPIB master. Multiple GPIB masters can be installed
in a PC in order to increase the number of addressable units.
Figure 15. USB or RS232 networking
Figure 16. CAN networking example, also applies to GPIB
11.3 Accessories and options
Following accessories are optionally available:
a) Digital interface cards
Pluggable and retrofitable, digital interface cards for USB,
RS232, CAN, GPIB/IEEE (SCPI only), Ethernet/LAN (SCPI
only) or Profibus are available. There is one interface card slot
available with every device model.
b) Extended analogue interface
Pluggable and retrofitable, galvanically isolated, 25 pole ana-
logue card. For details refer to the seperate interface cards
instruction manual.
Following options are available:
a) High Speed Ramping
Increased dynamics of the output voltage by reduced output
capacity. It must be pointed out, that other output related values
also increase!
Note: this is a permanent modification which is not switchable.
b) Watercooling
Internally integrated water cooling block. The watercooling is
used prevent premature shutdown of the power output because
of overheating.
c) Internal resistance regulation
This option can be purchased subsequently and is unlocked
with a code number in the device‘s setup menu.
After it is unlocked, the user can choose between U/I/P or U/I/R
operation. The power set value will not be adjustable in U/I/R
mode, it is then only defined as a limit in the device settings.
Note: it will eventually be required to update the device firmware
before the option can be unlocked. Ask your supplier.
11.4 Firmware update
A firmware update of the device should only be done if the
device shows erroneous behaviour or if new features have
been implemented.
In order to update a device, it requires a certain digital inter-
face card, a new firmware file and a Windows software called
„Update tool“.
These interfaces are qualified to be used for a firmware update:
• IF-U1 (USB)
• IF-R1 (RS232)
• IF-E1 (Ethernet/USB)
• IF-PB1 (Profibus/USB)
In case none of the above interface types is at hand, the device
can not be updated. Please contact your dealer for a solution.
The update tool and the particular firmware file for your device
are obtainable from the website of the device manufacturer, or
are mailed upod request. The update too will guide the user
through the semi-automatic update process.
