User manual

48
© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
Instruction Manual
PS 8000 2U Series
Date: 02-09-2012
Operating the device
11.1.3 Mixed connections
Mixed connections are parallel and series connections within
one system. It is possible to do so, but we advise as follows:
First do the parallel connections, for example 3 units with 65V
and 10A each. Then do the series connection (same three units
again) in order to gain, for example, a 130V and 30A system.
If running high currents, it is advised to put the load in the middle
of parallely connected units, if an odd number.
Recommended
Not recommended
11.2 Networking
The gures below depict networking examples for the digital
control of multiple devices in star-shaped (USB, RS232) or
bus-like (CAN, GPIB) conguration.
Limitations and technical specications 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.
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 11. USB or RS232 networking
Figure 12. CAN networking example, also applies to GPIB