SBC PCD1 Series Manual page 149

Saia-Burgess Controls AG
Input circuits and terminal designation
Depending on external wiring, this module may be used for source or sink operation.
Source operation (positive logic):
1, 3, 5, 7
9, 11, 13, 15
17, 19, 21, 23
25, 27, 29, 31
L
Ue 24 VDC
Sink operation (negative logic):
1, 3, 5, 7
9, 11, 13, 15
17, 19, 21, 23
25, 27, 29, 31
L
Ue 24 VDC
Watchdog: This module can interact with the watchdog; if it is used on base address
240 (or 496 for the PCD2.M17x), the last input with address 255 (or 511 for the
PCD2.M17x) cannot be used.
For details, please refer to the
the watchdog in conjunction with PCD2 components.
Manual Manual PCD 1 / PCD 2 Series │ D ocument 26 / 737 EN22 │ 2 013-11-26
10k 10k
10k 10k
30 32
Ribbon cable connector
E1 E0
Switch closed: (+ at input): signal state "H", LED lights up
Schalter open:
30 32
Ribbon cable connector
E1 E0
Switch closed: (- at input): signal state "L", LED off
Switch open:
"Watchdog"
If both inputs 0 and 1 are
switched on, the yellow (orange)
LED lights up
signal state "L", LED off
signal state "H", LED lights up
section, which describes the correct use of
Input/output (I/O) modules
Digital input modules
LED red
LED green
5
5-13