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saia-pcd.com
PG5
SCADA
PG5
SCADA
S-IO
Communication & Interaction
2.5
S-Net for communicating between Saia PCD® devices
2.5.1
The basic features of S-Net
S-Net incorporates the S-Bus and S-I/O system protocols for commu-
nicating between SBC devices. Both protocols are optimised for SBC
devices and compared to other standard protocols (e.g. Modbus)
offer more functionality and can be used more simply and efficiently
in the application.
S-Bus
supports all services and functions regarding the exchange of
data, programming, commissioning and service of Saia PCD® control-
lers. The S-Bus protocol does not depend on the physical aspects
and can be used on Ethernet, USB, Profibus-FDL and serial interfaces
(RS-232, RS-422, RS-485).
The
S-IO
protocol supports the operation of SBC remote I/O stations
with Ethernet (PCD3.T66x) and Profibus (PCD3.T760)
Management level
S-Net for communication between SBC devices across all levels
Services and functions using S-Bus
Programming and commissioning
S-Bus is the programming device system protocol. It supports all programming,
commissioning and diagnostic functions.
Access with the programming device via Ethernet,
USB or serial interface
Exchanging data between PCD controllers via Ether-
net, Profibus or serial interfaces
Connecting to SCADA systems via Ethernet, USB,
Profibus or serial interfaces
Access to the PCD web server is also possible via
USB and Serial interfaces
Visualisation with web browsers
S-Bus supports HTTP protocol transmission. This also allows websites to be
transmitted together with “SBCWeb.Connect” via USB and serial interfaces and displayed
on a Windows PC with the standard web browser or a micro browser web panel.
Visualisation with OPC servers and SCADA systems
S-Bus together with an OPC Server or the SBC.Net-Suite supports access
(reading and writing) to all PCD data with a Windows SCADA system.
Exchanging data between PCD controllers
S-Bus supports the transmission of all PCD media (register, flags, timer/counter,
database and text) and is optimised for the exchange of data between PCD controllers,
whereby Ethernet and Profibus allow multi-master operation.
Serial interfaces (RS-232, RS-422, RS-485) enable “single”-master slave mode or S-Bus
master multiple slave mode.
Automation level
Field level
