chromasens allPIXA, Руководство пользователя

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CD40047_R04_allPIXA_User-Manual.docx 34
5.4 Digital IO port
You need a 15-pin D-Sub connector (male) to establish a connection to the digital I/O interface
of the allPIXA camera. Other functions can be selected at the IO Configurator in CST.
Pin no. Level Description Default
1
RS 422 GPIO_P0 (input) Incremental encoder (high)
2
RS 422 GPIO_P1 (input) Light barrier (high)
3
LVCMOS
GPIO_P5
(BDir, PullUp)
Can be used for light barriers
or nSelMaster (Bridge to 0 V).
Only pin 3
:
V
in
5,0 V max. .
4
LVCMOS
GPIO_P6
(BDir, PullDown) Selectable with IO
Configurator
5
3.3 V over 100 Ohm Power
Output
6
LVCMOS
GPIO_P8
(BiDir, PullDown) Master/Slave interface
7
0 V Ground
-
8
LVCMOS
GPIO_10
(BiDir, PullDown) Master/Slave interface
9
RS 422 GPIO_N0 (input) Incremental encoder (low)
10
RS 422 GPIO_N1 (input) Light barrier (low)
11
0 V Ground
-
12
LVCMOS
GPIO_7
(BiDir, PullDown) Selectable with IO
Configurator
13
0 V Ground -
14
LVCMOS
GPIO_9
(BiDir, PullDown) Selectable with IO
Configurator
15
5 V over 100 Ohm Power supply Output
NOTE
Power supply with a 100 Ohm series resistor;
RS422 to RS422 standard
LVCMOS with 10 Ohm series resistor
Some requirements for using the RS422 interfaces:
a) Although RS422 is a differential signal, a proper ground connection is required additionally
between the source (for example encoder) and the drain (for example camera)
b) The allPIXA contains an internal termination for the RS422 signal lines. The advantage of
the internal termination is that you do not have to take care about termination if the RS422
is used as an interface between two devices. On the other hand, it is not possible to connect
two (or more) cameras to one sender.
If connection of more than one camera to one RS422 source is required, additional
hardware must be used. Alternatively using the master/slave configuration might be an
option.
Pin 1