Document type:
Title:
Revision date:
Revision:
User's Manual (MUT)
Mod. SY2527, Universal Multichannel Power Supply System
27/11/2000
0
NPO:
Filename:
Number of pages:
Page:
00103/97:2527y.MUTx/00
SY2527USERMANUAL_REV0.DOC
84
11
The User Software Interface features the usual friendliness of the previous CAEN
systems which now also includes a 7.7" colour LCD. A wide choice of interfaces provides
full communication compatibility with the previous systems and the possibility of
controlling heterogeneous external devices.
The
Board Section
can house up to 6 boards able to fulfil different functions. A new line
of boards and distributors, analogous with those available for the SY527 system, and a
set of branch controllers has been specially developed for this new system.
The concept of modularity has been extended up to the possibility of arranging ‘clusters’
constituted by one ‘intelligent’ SY2527 system able to drive other ‘non
systems, i.e. systems without CPU (to be implemented). The connections among the
systems constituting the cluster are realised through a new CAEN interface, the Local
Net.
The extreme flexibility of the system, which allows to house indifferently, inside the
same mainframe, boards with different functions, is further enhanced by the possibility of
developing
ad-hoc
boards and even complete custom peripheral systems, including their
hardware. The latter, actually, can be designed specifically for on-detector installation.
All the custom electronics can be anyway controlled by single boards which are inserted
in the SY2527 mainframe and act as branch controllers.
Fast, accurate set-up and monitoring of up to 1024 parameters (14-bit resolution on
Voltages and Currents with standard boards) is available for each branch controller
thanks to the use of one microprocessor per slot. All the operational parameters are
stored in a non-volatile memory (EEPROM) to be still available after Power-Off. The
parameters can be controlled either via CAEN traditional built-in links (RS232,
H.S. CAENET) or via CERN-approved Fieldbuses or via Ethernet (TCP/IP).
Programmable handling of parameters and errors is available as well.
Channel trip control on other crates is performed via four external differential trip lines. A
sophisticated trip handling via software allows to control and correlate trip conditions on
the channels of the crate as well as of other crates connected to it.
Live insertion and extraction of the boards, which reduces the down time of the global
system, and easy access to the computing core and peripherals of the system completes
the system flexibility.
Easy interfacing is another key-point of the SY2527 system. Thanks to the
H.S. CAENET interface, the system ensures full communication compatibility with the
previous models. Besides the RS232 and Ethernet (TCP/IP) interfaces provided with the
standard version of the system, CAN-bus can be furnished on request, as well as special
boards featuring optical links for remote communications. The Power Supply Section
and Board Section can be externally synchronised via front panel connectors.
Secure access to the system via Intranet is foreseen together with a multilevel
management of custom user's profiles. In particular, three different access levels have
been implemented:
Guest
,
User
and
Administrator
, each of which with password
protection.
Handy maintenance and upgrading, which constitute a major issue in the reliability of a
system, are further guaranteed by the possibility of accessing and servicing the system
via network facilities. Actually, Telnet and WWW access facilities allow remote
debugging and technical support of the system, including future firmware upgrading.
