Octagon 6000 Series, User Manual

Page: 97 / 233

8-2
Analog I/O 6000 Series user’s manual
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Analog I/O interface
To interface analog I/O devices to J7 of the 6040, use an STB-20 termi-
nal board and a CMA-20 cable. See the following diagram.
Figure 8-1 Interfacing analog I/O devices to the 6040
CMA-20
ribbon cable
STB-20
+
–
Analog input device
Analog I/O port
6040
J7
+
–
Analog output device
≡
Configuring and programming the analog I/O
port
Configuring and reading from analog input with CAMBASIC
To configure the 6040 for analog input, use CAMBASIC’s CONFIG AIN
command. For more details regarding CONFIG AIN, refer to your
CAMBASIC user’s manual.
Example
An analog input program example using CAMBASIC’s AIN command is
provided below.
10 CONFIG AIN 0,0: ‘Config A/D channel 0 to 0 to 5V
input range
20 CONFIG AIN 1,1: ‘Config A/D channel 1 to -5 to 5V
input range
30 CONFIG AIN 2,2: ‘Config A/D channel 2 to 0 to 10V
input range