Saia-Burgess Controls AG
Hardware manual for PCD3 series │ Document 26-789 ENG19│ 2018-06-29
Connections on orange terminal block
PCD3.Mxxx0 Classic CPU and expansion enclosure
3-40
3
10k
10k
4k7
µC
CF 5272
WD
+24V
WD
1
2
3
4
5
6
7
GND
INT1
INT0
4.7 nF
/D
D
8
Input signals source mode:
H = 15...30 V
L = -30...+ 5 V or unconnected
Source mode
PCD3.Mxxx0
Periphery
Do not connect to D and /D. The RS-485 interface works with 5VDC and can thus
be destroyed!
Function description:
With a positive edge at the input
INT0
the
XOB 20
is called. The reaction time up
to the call of XOB 20 is a maximum of 1 ms. The code of these XOBs determines
how to respond to the events, e.g. by incrementing a counter (input frequency
max. 1 kHz with pulse / pause 50% each, sum of the two frequencies (INT0 and
INT1) max. 1 kHz). Regardless of whether the XOB is programmed, input 8100 is
set (the same applies to INT1 with XOB21 and input 8101, see table above).
The interrupt inputs to the following CPU do not work directly:
PCD3.M3160 PCD3.M5360 PCD3.M6360
PCD3.M3360 PCD3.M5560 PCD3.M6560
PCD3.M6860
Both Interrupt inputs can be mapped to 2 flags in the
Device Configurator
.