Meilhaus Electronic redlab 1208fs, Руководство пользователя

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RedLab 1208FS User's Guide Functional Details
20
Analog output terminals (D/A OUT 0 and D/A OUT 1)
You can connect up to two analog output connections to the screw terminal pins 13 and 14 (
D/A OUT 0
and
D/A
OUT 1
). Refer to the pinout diagrams on page 16 for the location of these pins.
Each channel can be paced individually at rates up to 10,000 updates per second. Both channels can be paced
simultaneously using the same time base at 5000 updates per channel. The 0-4.096 V output range provides a
convenient 1 mV per LSB when setting the output voltage levels.
Digital I/O terminals (Port A0 to A7, and Port B0 to B7)
You can connect up to 16 digital I/O lines to the screw terminal containing pins 21 to 40 (
Port A0
to
Port A7
,
and
Port B0
to
Port B7
.) Refer to the pinout diagrams on page 16 for the location of these pins. You can
configure each digital port for either input or output.
When you configure the digital bits for input, you can use the digital I/O terminals to detect the state of any
TTL level input. Refer to the switch shown in Figure 9 and the schematic shown in Figure 10. If the switch is
set to the +5 V input, Port A0 reads
TRUE (1). If you move the switch to GND, Port A0 reads FALSE .
Figure 9. Digital connection Port A0 detecting the state of a switch
+5V +GND
Port A0
Figure 10. Schematic showing switch detection by digital channel Port A0
For more information on digital signal connections
For more information on digital signal connections and digital I/O techniques, refer to the Guide to Signal
Connections (available on our RedLab CD (root directory)).
Pin 40
GND
Pin 30
PC +5 V
Pin 21
Port A0