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Saia-Burgess Controls AG
Hardware manual for PCD3 series │ Document 26-789 ENG19│ 2018-06-29
Communication interfaces
5-8
Onboard interfaces
5
5.3.3
RS-485 / RS-422 (port 3)
This interface is routed to a 9-pin D-sub connector
(socket) and is of type RS-485 / RS-422.
5560
S-Net / MPI
Saia PCD3.M
PCD3.M5340, PCD3.M5360
PCD3.M5xx0
5
4
3
2
1
9
8
7
6
10
11
RS-422
Port 3
RS-485
Port 3
D-Sub
pin
Signal
Explanation
Signal
Explanation
1
/RXD
Receive data -
---
---
2
/CTS
Ready to send -
---
---
3
/TXD
Send data +
/RxD /TxD Receive/Send +
4
/RTS
Send request -
---
---
5
PGND
Data ground
PGND
Data ground
6
RXD
Receive data +
---
---
7
CTS
Ready to send +
---
---
8
TXD
Send data -
RxD TxD
Receive /
Send -
9
RTS
Send r
---
---
Port 0
Port 3
10/11
*)
PGND
Shield dimensions
PGND
Shield
dimensions
*)
*) Mounting screws of the D-Sub female connector housing
5.3.4
RS-485 / S-Net / MPI (port 10)
This interface is routed to a 9-pin D-sub connector
(female) and is of type RS-485.
5560
S-Net / MPI
Saia PCD3.M
PCD3.M5xx0
(except PCD3.M5340 and PCD3.M5360)
5
4
3
2
1
9
8
7
6
10
11
S-Net / MPI / RS-485
Port 10
D-Sub
pin
Signal
Explanation
1
GND
GND
2
M24
0V of the 24V power supply
3
RxD/TxD-P
1)
Receive/Transmit data pos.
4
CNTR-P
Control signal for repeaters (direction control)
5
DGND
1)
Data transmission potential (volume to 5V)
6
VP
2)
Supply voltage of the terminating resistors-P
7
P24
Output voltage plus 24V
8
RxD/TxD-N
1)
Receive/Transmit data neg.
9
n.c.
---
10/11
*)
PGND
Shield dimensions
*)
Port 0
Port 10
*) Mounting screws of the D-Sub female connector housing
1)
Obligatory signals (it is imperative that the user makes this available)
2)
The signal is provided by the controller