SBC PCD2 Series - Page 56

Saia-Burgess Controls AG
Manual I/O-modules for PCD1 │ PCD2 series │ Document 27-600 – Release ENG09 │ 2019-05-01
5-47
I/O modules PCD1|PCD2
PCD2.B100
5
Input/output circuits and terminal designation
E/A5
E/A4
E/A3
E/A2
E1
E0
A6
A7
E1
E4
A4
A7
A6
E3
A3
A5
E0
E5
E3
A2
E2
I/O Bus
PCD Bus
24 VDC
Fuse
The example shows E/A2 and E/A3 used as inputs and
E/A4 and E/A5 used as outputs
The following applies for the inputs:
Switch closed (input positive): Signal state = “1” = LED on
Switchopen:    Signalstate=“0”=LEDo󰀨
Fuse: It is recommended that each module should be separately protected
with a fast-blow 3.15 A fuse.
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.