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
75
7.4
Remote operation via Host Computer
A newly released suite of applications guarantees CAEN power supplies'
interoperability between virtually all available computing environments and
communication protocols (TCP/IP, CANbus ...).
In the latest years OPC (OLE for Process Control) has clearly emerged as one of the
most popular standards in the world of industry automation. OPC is an open interface
based on the OLE/COM (now ActiveX) and DCOM technology; OPC offers "Plug&Play"
connectivity between disparate control applications and hardware devices. The
introduction of the OPC interface has caused the number of driver developments which
hardware manufacturers implement for their components to be reduced to only one:
the OPC server. On the other hand, OPC client applications (from any vendor) can
communicate with the OPC server to exchange data and control commands in a
standard way. Each device property is accessed via an OPC item. An OPC server
creates OPC items on behalf of an OPC client. The client's OPC items are organized in
OPC groups with a hierarchical structure.
RS232
Standard PC
running a custom-
developed program
TCP/IP protocol via Ethernet
+
+
Computer connected to a TCP/IP Network (INTERNET/
INTRANET) and running a custom-developed program
TCP/IP, RS232 or H.S. CAENET
Computer connected via TCP/IP,
RS232 or H.S. CAENET and running
an OPC client application
SY2527 crate
1 2 3
4
1 5 6
7 8 9
.
0 -
CM
D
DEL
AC
K
Fig. 7.24 – Remote Operation Via Host Computer
CAEN, in close collaboration with CERN (IT-CO group) has developed an
OPC server
which allows powerful, flexible and yet simple control of its power supply systems,
indifferently through TCP/IP, RS232 or H.S. CAENET communication path by any OPC
compliant client application. For further details please refer to the
OPC Server for CAEN
Power Supplies User’s Manual
available from http://www.caen.it/computing.