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
The PCD2.M5_ is equipped with a Profi S-Net interface as standard. This can be
used both for programming and for communication with other CPUs (that support
Profi S-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-protocol operation on the same interface)
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
(direction control)
5
SGND
1
)
Date communication potential
(earth to 5 V)
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)
Mandatory signals (must be provided by the user).
Specially the both signals SGND and +5V are provi
ded by the PCD, if the Profibus configuration is correct.
Port 10: Pins 3, 4, 5, 6 and 8 are insulated from the system. Pin 2 serves as a backlink for Pin 7.
For details of the configuration and programming of Profi S-Net functions, please
consult the specialised manuals.
Port 10
or 3
Port 0