Saia-Burgess Controls AG
Manual I/O-modules for PCD1 │ PCD2 series │ Document 27-600 – Release ENG09 │ 2019-05-01
5-41
I/O modules PCD1|PCD2
PCD2.A250
5
LEDs and connection terminals
A0
A1
A3
A4
A5
A7
A2
A6
0
1
2
3
4
5
6
7
8
9
10
11
12
13
A7 A6 A5 A4 A3 A2 A1 A0
C4 - 7 C0 - 3
Bus connector
Bus interface
Relay
LEDs
Screw terminals
Relay contacts
Supply 24 VDC for Relay coils
Output circuits and terminal designation
8
9
6
7
I/O Bus
PCD Bus
5
A1
2
3
A0
0
1
A2
Relay contacts
Terminals
24 VDC
4 relay contacts have
one common terminal
Address
LED A7
10
11
12
13
4
A3
A4
A5
A6
A7
C4 - 7 C0 - 3
Relay energized (contact closed):
LED on
Relay reset (contact open):
LED off
24 V
DC
must be connected to the +/- terminals.
Watchdog: This module can be used on all base addresses; there is no interac
-
tion with the watchdog on the CPUs. For details, please refer to the
section A4
“Hardware Watchdog”
, which describes the correct use of the watchdog in con-
junction with PCD components.
LED
Outputs
0
A0
1
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7