Octagon 6000 Series, User Manual

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6-1
6000 Series user’s manual EZ I/O
Chapter 6:
EZ I/O
Note EZ I/O is available on the 6020, 6040, and 6050 PC Microcontrollers.
≡
Digital I/O lines
Several PC Microcontroller models feature the Octagon EZ I/O digital I/O
chip. Each EZ I/O chip supplies 24 I/O lines which can be individually
programmed as 5V input or 5V output. Each line can sink or source 15
mA.
EZ I/O lines can be used to sense switch closures, turn on lamps and LEDs,
and interface with other devices that have TTL input or output such as
printers and scales. The EZ I/O port can drive the Octagon MPB series
opto-isolation module racks directly, controlling AC and DC loads to 240V
at 3A. CAMBASIC has several commands to support the EZ I/O port when
working on bit, BCD, byte or word bases. Figure 6-1 shows typical EZ I/O
configurations.
Figure 6-1 Typical EZ I/O configurations
MPB Opto Rack
J1
J2
P8
1 2 7 6 5 4 3 8 9 14 13 12 1
1 10 15 16
+ –
LOGIC
0 1 2 3 4 5 6 7
CMA-26
ribbon cable
EZ I/O port
PC
Microcontroller
STB-26
J2 J1
EZ I/O port
PC
Microcontroller
CMA-26
ribbon cable
MPB Opto Rack
J1
J2
P8
1 2 7 6 5 4 3 8 9 14 13 12 1
1 10 15 16
+ –
LOGIC
0 1 2 3 4 5 6 7
STB-26
J2 J1
EZ I/O port
PC
Microcontroller
CMA-26
ribbon cable