SBC PCD2 Series - Page 200

Saia-Burgess Controls AG
Manual I/O-modules for PCD1 │ PCD2 series │ Document 27-600 – Release ENG09 │ 2019-05-01
6-57
I/O modules PCD3
PCD3.B100
6
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 I/O2 and I/O3 used as inputs and
I/O4 and I/O5 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 pro-
tected
with a fast-blow 3.15 A fuse.
Watchdog:Thismodulecanbeusedonallbaseaddresses;
there is no interaction with the watchdog on the CPUs.