@
BOSCH
Flexible
Automation
Description Stage 4 Chapter 2
CC lOOM
User Manual
Machine parameters for timing of auxiliary functions
Definition:
Auxiliary
functions
and
other
data
can
be
output
via
the
BeD
bus.
The
timing
of
this
output
can
now
be
selected.
If
machine
parameter
21
is
not
enter~,
the
timing
is
fixed
and
compatible
with
previous
software
versions
(see
Interface
conditions,
Pages
3-27/3-28).
The
diagram
below
shows
the
times
whose
values
can
be
entered:
A
address
r
A data
fOnL
T2
A strobe
Tl
=T3
Entering the times:
Times
Tl
andT2
can be selected
via
machine parameter
21
between 10 ms and 127
ms
(1.27 sec.).
The
minimum
permitted
time
unit
is
10
ms.
The
input
range
of
the
machine
parameter
is
two
times
0-
127
time
units.
The
two
times
may
differ.
The
first
time
unit
for
T1
(T3)
can
be
specified
with
2
digits.
The
second
time
unit
for
(T2)
must
be
programmed
with
three
digits
(e.g.
T2 =
50
ms
•
time
unit 5 • entry for T2 = 005).
Machine parameters:
P21
: xxx
yyy
T
T.
T2
_
Tl
YYY
E
[0.127)
XXX
E [0.127)
Example entry:
Time
Tl
(T3) is to be programmed with 330 ms, and time T2 is to
be
programmed with 1.2
sec.
Entry for
Tl
(T3): 330
msll0
ms = 33
Entry for T2 : 1200
msll0
ms= 120
Entry syntax in
MP
21: 033120
[ENTER)
For
reasons
related
to
compatibility
with
software
versions
< S40. a machine parameter
entry
of
o
must
be
accepted.
The
following
times
are
set
fixed
in
this
case:
P21:
xxx
yyy
1
T::,
Tl
= 20 ms with PlC 200
Tl
= 10
ms
with
PC
coupling
T2 = 50
ms
with PlC 200
or
T2 = 20
ms
with
PC
coupling
Advantage:
Output of H functions to the
PLC
can
be
speeded
up
substantially.
2-3
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