Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG Communication interfaces
5
5-7
Onboard interfaces
5.3.5 D-Sub x1 S-Net/MPI
ThePCD2.M5_isequippedwithaProS-Netinterfaceasstandard.Thiscanbe
usedbothforprogrammingandforcommunicationwithotherCPUs(thatsupport
ProS-Bus)and / or SBC RIOs.
Technical details:
Transmission rates: up to 1.5 MBit / s
Number of stations: up to 124 stations in segments of 32 stations each
Protocols:
Profi S-Bus, Profi S-IO, DP Slave, HTTP in preparation
(multi-protocoloperationonthesameinterface)
Connection diagram
S-Net / MPI / RS-485
Port 10 or 3
D-Sub
pin
signal Explanation
1 PGND GND
2 GND 0 V of 24 V supply
3 RxD/TxD-P
1
)B(red) Receive / transmit data positive
4 RTS/CNTR-P Control signal for repeater
(directioncontrol)
5 SGND
1
) Date communication potential
(earthto5V)
6 +5V
1)
Supply voltage to P line
termination resistors
7 MPI24V Output voltage plus 24 V
8 RxD/TxD-N
1
)A(green) Receive/send data negative
9 not used
1)
Mandatorysignals(mustbeprovidedbytheuser).Specially the both signals SGND and +5V are provi
dedbythePCD,iftheProbuscongurationiscorrect.
Port 10: Pins 3, 4, 5, 6 and 8 are insulated from the system. Pin 2 serves as a backlink for Pin 7.
FordetailsoftheconfigurationandprogrammingofProfiS-Netfunctions,please
consult the specialised manuals.
Port 10
or 3
Port 0