|
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-30 10:01:29 |
|
Hi Jiri !!
I'm thinking about use magic_bit_aliases.
If I set magic_bit_aliases = 1,
all points in this module must be 32 bit long (or 16bit),
and each of them has 32(or 16) alias points ?
If I make a point called my_point,
can I get point handle by alias name (my_point.0)?
And is it 1 bit point ?
Also get handle of my_point and it's 32 bit long?
thank you
ikeya
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-30 13:15:46 |
Hello,
takeshi ikeya:
> I'm thinking about use magic_bit_aliases.
> If I set magic_bit_aliases = 1,
> all points in this module must be 32 bit long (or
16bit),
> and each of them has 32(or 16) alias points ?
Any size of points is allowed regardless of the
magic_bit_aliases setting.
> If I make a point called my_point,
> can I get point handle by alias name (my_point.0)?
Yes.
> And is it 1 bit point ?
There are two possibilities:
* if my_point is at least 1 bit long, my_point.0 will be a 1
bit point.
* if my_point is 0-length, my_point.0 will also be 0-length
A third possibility would be if the offset is greater than
the length of the
point. For instance, if my_point is 5 bits long, my_point.31
is invalid.
(Note that there is a special case: if my_point is 0-bit,
all sub-points are
valid and 0-length. This makes it possible to "comment
out" a point by making
it 0-length even if it does have sub-points.)
> Also get handle of my_point and it's 32 bit long?
my_point will have whatever length is declared in the
matplc.conf file.
Jiri
--
Jiri Baum <jiri baum.com.au> http://www.baum.com.au/~
jiri
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|
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-30 13:15:46 |
Hello,
takeshi ikeya:
> I'm thinking about use magic_bit_aliases.
> If I set magic_bit_aliases = 1,
> all points in this module must be 32 bit long (or
16bit),
> and each of them has 32(or 16) alias points ?
Any size of points is allowed regardless of the
magic_bit_aliases setting.
> If I make a point called my_point,
> can I get point handle by alias name (my_point.0)?
Yes.
> And is it 1 bit point ?
There are two possibilities:
* if my_point is at least 1 bit long, my_point.0 will be a 1
bit point.
* if my_point is 0-length, my_point.0 will also be 0-length
A third possibility would be if the offset is greater than
the length of the
point. For instance, if my_point is 5 bits long, my_point.31
is invalid.
(Note that there is a special case: if my_point is 0-bit,
all sub-points are
valid and 0-length. This makes it possible to "comment
out" a point by making
it 0-length even if it does have sub-points.)
> Also get handle of my_point and it's 32 bit long?
my_point will have whatever length is declared in the
matplc.conf file.
Jiri
--
Jiri Baum <jiribaum.com.au> http://www.baum.com.au/~
jiri
------------------------------------------------------------
-------------
Using Tomcat but need to do more? Need to support web
services, security?
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make your job easier
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Apache Geronimo
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sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/mat-devel
|
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-30 22:17:03 |
|
Thank you Jiri!
I understood magic_bit_aliases is not good for my purpose.
I'm making a server module which reads in the status of points (to real world) and drive fieldbus master card.
I think it's time consuming to read points one by one, so I'm planinng to read them at a word.
Is there any good way ?
ikeya
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-30 22:17:03 |
|
Thank you Jiri!
I understood magic_bit_aliases is not good for my purpose.
I'm making a server module which reads in the status of points (to real world) and drive fieldbus master card.
I think it's time consuming to read points one by one, so I'm planinng to read them at a word.
Is there any good way ?
ikeya
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-31 06:44:35 |
Hello,
takeshi ikeya:
> I'm making a server module which reads in the status of
points (to real
> world) and drive fieldbus master card.
> I think it's time consuming to read points one by one,
so I'm planinng to
> read them at a word.
> Is there any good way ?
Unfortunately, no.
We were planning to add this to the I/O library, but we
haven't done it yet -
it's a difficult thing to do well in general.
Actually, thinking of it now, maybe it wouldn't be that
difficult after all;
we could simply have multiple MatPLC points specified in the
"map" table;
they'd be concatenated before being sent through to the I/O.
Would that solve the problem?
Jiri
--
Jiri Baum <jiribaum.com.au> http://www.baum.com.au/~
jiri
------------------------------------------------------------
-------------
Using Tomcat but need to do more? Need to support web
services, security?
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make your job easier
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Apache Geronimo
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sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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|
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-31 06:44:35 |
Hello,
takeshi ikeya:
> I'm making a server module which reads in the status of
points (to real
> world) and drive fieldbus master card.
> I think it's time consuming to read points one by one,
so I'm planinng to
> read them at a word.
> Is there any good way ?
Unfortunately, no.
We were planning to add this to the I/O library, but we
haven't done it yet -
it's a difficult thing to do well in general.
Actually, thinking of it now, maybe it wouldn't be that
difficult after all;
we could simply have multiple MatPLC points specified in the
"map" table;
they'd be concatenated before being sent through to the I/O.
Would that solve the problem?
Jiri
--
Jiri Baum <jiribaum.com.au> http://www.baum.com.au/~
jiri
------------------------------------------------------------
-------------
Using Tomcat but need to do more? Need to support web
services, security?
Get stuff done quickly with pre-integrated technology to
make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on
Apache Geronimo
http://sel.as-us.falkag.net/
sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
MAT-devel mailing list
MAT-devellists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/mat-devel
|
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-31 12:01:50 |
|
2006/10/31, Jiri Baum < jiribaum.com.au">jiribaum.com.au>:
we could simply have multiple MatPLC points specified in the "map" table;
they'd be concatenated before being sent through to the I/O.
services, security?
What is map table ?
Where have I go to ?
; ikeya
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-31 12:01:50 |
|
2006/10/31, Jiri Baum < jiribaum.com.au">jiribaum.com.au>:
we could simply have multiple MatPLC points specified in the "map" table;
they'd be concatenated before being sent through to the I/O.
services, security?
What is map table ?
Where have I go to ?
; ikeya
|
| Does magic_bit_alias affect all points
in that module? |
|
2006-10-31 12:09:13 |
Hello,
Jiri Baum:
> > we could simply have multiple MatPLC points
specified in the "map" table;
> > they'd be concatenated before being sent through
to the I/O.
takeshi ikeya:
> What is map table ?
> Where have I go to ?
I'm sorry, I was thinking of possible additional
functionality for the
"map ..." lines in the matplc.conf file.
It's not currently possible to do that; however, it might be
reasonably easy
to add such functionality there. The question is whether it
would help...
Jiri
--
Jiri Baum <jiribaum.com.au> http://www.baum.com.au/~
jiri
------------------------------------------------------------
-------------
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services, security?
Get stuff done quickly with pre-integrated technology to
make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on
Apache Geronimo
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sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
MAT-devel mailing list
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https://lists.sourceforge.net/lists/listinfo/mat-devel
|
|