SBC PCD2.M5 Series - Pcd2.M5 Xx0 Communication Interfaces

Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG Communication interfaces
5
5-1
5 PCD2.M5xx0 Communication interfaces
Using the SBC S-Bus
The proprietary SBC S-Bus has been designed essentially for
communication with the engineering and debugging tools, and for
connecting the management level/process control systems.
It is neither suitable nor approved for the connection of eld devices from
diverse manufacturers. An open, vendor-neutral eldbus will be more
effective in achieving this end.
SBC S-Net, the networking concept from Saia-Burgess Controls AG, is based on
theRS-485,ProbusandEthernetopenstandards.Ethernetcoverslayers1and2
of the ISO / OSI layer model. Based on layer 2, a variety of different protocols and
applications can be run in parallel on the same network.
Layer2(FieldDataLink-FDL)fromProbusalsoallowsparallelrunningofdifferent
applicationprotocolssuchasDP,FMSandothers.TheuseofthisfacilityallowsPro
S-Nettobeusedtocreatea"PrivateControlNetwork(PCN)".ThismakesallSBC
units into active network components.
ProbusLayer2(FDL)isintegratedintotheoperatingsystemofthePCD2.M5_
CPUs,givingtheseunitsaProS-Netconnectionwithtransmissionspeedsupto
1.5 Mbp / s.
ThedevicessupportProbusDPandS-Netonthesameport.ThisallowsProbus-
basednetworkstobeconstructedcheaplyandexibly.
The PCD2.M5_ type controls have a Saia PCD
®
COSinus operating system with
whichhighertransferspeeds(SBC S-Bus up to 115 kBit / s)canbeachieved;how-
ever,lowerbaudrates(300and600Baud / sec.)arenolongersupported.
A2
A1
E/A-Slot
C
PCD2.M5540
0
321
7
456
x3,Port 2
x4,Port 1
Port 8