Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG
Digital input modules
Input/output (I/O) modules
6-13
6
For every 2 inputs, a 3-colour LED is tted:
LED is
I0 I1 I2 I3 I4 I5 I6 I7 I8 I9 I10 I11 I12 I13 I14 I15
off 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Red 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
Green 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
Yellow 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Input circuits and terminal designation
Depending on external wiring, this module may be used for source or sink operation.
Source operation (positive logic):
10 k 10 k
10 k 10 k
E1 E0L L
19 18 17 16 1 0
Ue 24 VDC
LED red
LED green
Screwless terminals
If both inputs 0 and 1 are
switched on, the yellow
(orange) LED lights up
Switch closed (+ at input): signal state "H", LED lights up
Switch open: signal state "L", LED off
Sink operation (negative logic):
E1 E0L L
19 18 17 16 1 0
Switch closed (- at input): signal state "L", LED off
Switch open: signal state "H", LED lights up
Screwless terminals
Ue 24 VDC
Watchdog: This module can interact with the watchdog, if it is used on base address
240. In this case, the last input with address 255 cannot be used.
Fordetails,pleaserefertothe"Watchdog" section, which describes the correct use of
the watchdog in conjunction with PCD2 components.