DISCO-B4 H
ARDWARE
M
ANUAL
V
ERSION
1.0.3
6.1.2.2
How to use these pins as digital Inputs (Pin 4, 5, 6)
These pins are high active when used as digital inputs, so you can set
V
IN(LOW)
and
V
I
N(HIGH)
to any levels within the range from +0 to +32.0 VDC. The High and Low levels
can be set with PFAL command (e.g.
PFAL,IO
0[1,2]
.Config=DI,5,10
)
-
where 0, 1 and 2
are indices corresponding to IO1 (pin 4), IO2 (pin 5) and IO3 (pin 6) respectively. While
the values 5 and 10 are min. and max. voltages that will be used to generate Low and
High events respectively.
Detailed information can be found in software manual
“
steppIII_FOX-LT_bolero_lt_PFAL_Configuration_Command_Set.pdf
“.
The figure below illustrates how these inputs can be used in practice. When the internal
software detects input changes from
High
to
Low
or vice versa, a
Falling
or
Rising
edge
Event is respectively generated. Therefore, depending on the alarm type, the DISCO-
B4 can react to the input changes and release different alarms such as sending out an
SMS, email message, TCP packet, opening a CSD connection or activating an output
port. The alarm type is user-dependant.
Figure 6:
Connection example when using it as digital input
A completed circuit example for all inputs is attached in section
8.1.1
.
This confidential document is a property of FALCOM and may not be copied or circulated without previous permission.
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