Satchwell IAC 600 - Logic Modules

MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
LOGIC MODULES
Deviation
1 to 10,000 0
Time
1 to 10,000
Seconds
0 Secs
LOGIC MODULES
x 20, total number of an
y
combination of ‘NOT’,
‘AND’ and ‘XOR’ Gates
‘NOT’ Modules
This module re
q
uires no settin
g
and is used to reverse the di
g
ital
inputs i.e. On/Off inputs. This can be an
y
On or Off si
g
nal within the
IAC. For example, if a di
g
ital si
g
nal is Off when it
g
oes into the inverter
it will be transmitted out as On and vice versa. In con
j
unction with the
"AND"
g
ates, and ‘XOR’ Gates these inverters can perform interlock
functions.
‘AND’ Gate Modules
This module is used to take 2 di
g
ital inputs and "AND" them to
g
ether to
g
ive a new di
g
ital output. The
g
ate must have both di
g
ital si
g
nals as
On before it will
g
ive an On output. In con
j
unction with the ‘NOT’
g
ates
and ‘XOR’
g
ates these
g
ates can perform interlock functions.
XOR (EXCLUSIVE OR) Gates
XOR GATE, one input onl
y
must be On to
g
ive an On out. E.
g
. Off, On
= On out
NOTE:-
All di
g
ital inputs work as a normal OR Gate within normal
modules when multiple di
g
ital si
g
nals are applied to a sin
g
le di
g
ital
input. That is an
y
number of the inputs are On then the output is On.
E.
g
. Off, On, Off, On, On in = On out
B
y
placin
g
a NOT Gate after an AND Gate the output is inverted thus
providin
g
a NAND
g
ate e
q
uivalent. A ‘NOR’
g
ate is created b
y
connectin
g
two or more inputs into a ‘NOT’
g
ate. B
y
placin
g
a NOT
Gate after an XOR Gate an EQUIV Gate is created
(
if both inputs are
the same then the output is on if not the output is OFF
)
.
LATCH MODULES
x 8
The Latch module is used to take a momentar
y
Di
g
ital input and
g
ive a
latched output. The output will now sta
y
on until it is cleared b
y
the
reset input bein
g
set momentaril
y
to on.
This module is used to monitor a pulse t
y
pe si
g
nal and create a lon
g
er
si
g
nal.
DELAY MODULES
x 8
The Dela
y
module enables an incomin
g
di
g
ital si
g
nal to be
manipulated. B
y
dela
y
in
g
the on state
y
ou can ensure that the
incomin
g
si
g
nal must be on for a minimum amount of time before it is
reco
g
nised. B
y
dela
y
in
g
the off state of the incomin
g
si
g
nal a
minimum on time can be
g
uaranteed. The output from the module can
then be used as an output to another module.
Period
0 to 10,000 Seconds 0 Secs
Hold On/Off
On or Off On
Rising Edge/Falling Edge
Risin
g
or Fallin
g
Fallin
g
Re-trigger
Yes or No No
Input
Output
Input
Output
Input
Output
Example 1: Start Up Delay:
Period = T
Dela
y
T
y
pe = Hold Off
Ed
g
e = Risin
g
Re-tri
gg
er = No
Example 2: Minimum Run Time:
Period = T
Dela
y
T
y
pe = Hold On
Ed
g
e = Risin
g
Re-tri
gg
er = No
Example 3: Minimum Off Time:
Period = T
Dela
y
T
y
pe = Hold Off
Ed
g
e = Fallin
g
Re-tri
gg
er = No
05/98 5 - 24 DS 2.951A