Saia-Burgess Controls AG
H
ardware manual for PCD3 series │ Document 26-789 ENG19│ 2018-06-29
Connections of the RIO head station PCD3.T76x for 4 modules
RIO (Remote Input Output) head stations
4-4
4
4.3
Connections of the RIO head station PCD3.T76x for 4 modules
760
Saia PCD3.T
Bus connection
to PCD3.LIOs
module carrier
Earth
LED
power ok
RS-232
Profibus
Profibus
address
24VDC
supply
LEDs for
operating states
4.3.1
Meaning of the connections
Network connection Profibus DP or Profi S-Net
760
Saia PCD3.T
The bus is designed
for a baud rate of up to
1.5 Mbps. More detailed
specifications of the
Profibus communication
can be found in the manual
26/765, Profibus DP.
On a PCD3.M3 or PCD3.
M6 (orange terminal block)
the /D corresponds to pin 3
(RxD / TxD-P, red) and D to
pin 8 (RxD / TxD-N, green).
1
PGND
2
GND
3
B = RxD/TxD-P | red =
/D
4
CNTR-P
5
SGND
6
+5V-Ext
7
24 VDC
8
A = RxD/TxD-N | green =
D
9
NC
Serial interfaces RS-232
760
Saia PCD3.T
This connection allows
configuration with a
browser such as Internet
Explorer or Netscape
Navigator (with connection
cable PCD3.K225).
1
TXD
2
RTS
3
RXD
4
CTS
5
PGND
6
DSR