Digital In-Out Board; Figure 2-3. Digital Input-Output Board Layout - Emerson VILTER MicroVission Operation And Service Manual

Section 2 • Hardware Architecture

Digital In-Out Board

The digital input - output board converts signals gener-
ated by the MicroVission program into 120VAC signals
as well as detect external 120VAC inputs to signal the
MicroVission program. All the signals are digital and in
that there are only two states available either ON or OFF.
See board layout, Figure 2-3.
Signal LEDs
• In the following diagram, the Signal LEDs for out-
put are marked in a Blue color and for input they
are marked in a Light Blue color. These LEDs indi-
cate when a 120VAC output is being produced or a
120VAC signal is detected.
Voltage LEDs
• In the following diagram, the Voltage LEDs are
marked in an Orange color. These LEDs indicate the
correct voltage of both the 5V DC and 24V DC pow-
er sources.
2 – 6

Figure 2-3. Digital Input-Output Board Layout

MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.3
Communication LEDs
• In the following diagram, the Communication LEDs
are marked in a Green color. These LEDs show the
active communications between the digital input-
output board and MicroVission CPU board.
Address Dipswitches
• In the following diagram, the Address Dipswitches
are marked in a Red color. These dipswitches are
used to assign each board its address position. The
address is binary and therefore the address of a digi-
tal input-output board is 2 (0010).