Re: [foxboro] AW: Foxboro and Allen Bradley, multiple PLCs
- From: "Johnson, Alex (Foxboro)" <ajohnson@xxxxxxxxxxx>
- To: foxboro@xxxxxxxxxxxxx
- Date: Wed, 2 Jan 2002 15:13:11 -0500
Let's see if I understand what you are saying:
* Install one or more PROFIbus DP interface cards in the Micro-I/A.
* Connect the PLC as a PROFIbus slave device to the PROFIbus network
* Configure the Micro-I/A to read the PLC data as if it were PROFIbus
data
Is this correct?
Regards,
Alex Johnson
System Products - Invensys Systems, Inc.
10707 Haddington
Houston, TX 77043
713.722.2859 (office)
713.722.2700 (switchboard)
713.932.0222 (fax)
ajohnson@xxxxxxxxxxx <mailto:ajohnson@xxxxxxxxxxx>
-----Original Message-----
From: Maurer, Heinz [SMTP:hmaurer@xxxxxxxxxxx]
Sent: Wednesday, January 02, 2002 3:49 AM
To: 'foxboro@xxxxxxxxxxxxx'
Subject: [foxboro] AW: Foxboro and Allen Bradley, multiple
PLCs
Hi,
if you want to connect multiple PLCs to one Micro for monitoring
and
operating, you can use up to 3 profibus DP masters, each with more
than =
one
client (PLC).
We have experiences.
Heinz Maurer
Invensys Systems GmbH
Vertriebsb=FCro D=FCsseldorf
Heerdter Lohweg 53-55
40549 D=FCsseldorf
Deutschland
Tel.: +49 (0) 211 5966 -333
Fax.: +49 (0) 211 5966 -300
Mob.: +49 (0) 173 25 32 515
Email: heinz.maurer@xxxxxxxxxxxx
http://www.invensys-process-systems.de
> -----Urspr=FCngliche Nachricht-----
> Von: Johnson, Alex (Foxboro) [SMTP:ajohnson@xxxxxxxxxxx]
> Gesendet am: Freitag, 28. Dezember 2001 19:11
> An: foxboro@xxxxxxxxxxxxx
> Betreff: Re: [foxboro] Foxboro and Allen Bradley
>=20
>=20
> The micro-I/A approach supports:
>=20
> * One and only one PLC
> * Dual Nodebus interface
> * Single electronics
>=20
> If it were not for the limitation of support for one PLC it would
be =
a
> very
> nice solution.
>=20
>=20
> Regards,
>=20
>=20
> Alex Johnson
> System Products - Invensys Systems, Inc.
> 10707 Haddington
> Houston, TX 77043
> 713.722.2859 (office)
> 713.722.2700 (switchboard)
> 713.932.0222 (fax)
> ajohnson@xxxxxxxxxxx <mailto:ajohnson@xxxxxxxxxxx>=20
>=20
>=20
> -----Original Message-----
> From: Chris Browder [SMTP:chris_browder@xxxxxxxxx]
> Sent: Friday, December 28, 2001 11:53 AM
> To: foxboro@xxxxxxxxxxxxx
> Subject: Re: [foxboro] Foxboro and Allen Bradley
>=20
>=20
> Not much to add, but aren't there MicroIA solutions
> available that will connect via ethernet/ip to PLC's?=20
> No one has mentioned them yet. There was also some
> talk a while back about there being a redundant option
> (in addition to fault tolerant) available in the
> future.
>=20
> If available the MicroIA would then be used instead of
> the AB30's...
>=20
> chris.
>=20
>=20
> --- Rick de la Cierva <rcierva@xxxxxxxxxxxxxxxx>
> wrote:
> >=20
> > Bob,=3D20
> >=20
> > I think you caught many on vacation since this topic
> > usually has many
> > interested subscribers willing to dive in. While I
> > was at lunch tough I
> > did see Joe provided some feedback also.
> >=20
> > The AB30 is a standard Foxboro module that can be
> > configured redundant.
> > One of the ports is configured to communicate to the
> > CAM (see modules
> > listed below) that converts it to DH+. The
> > limitations are: "The Gateway
> > supports a maximum of 16 I/A Series Allen-Bradley
> > Scan Blocks (ABSCAN)
> > to perform input/output functions with up to eight
> > PLC controllers". I
> > believe these are not hard limitations but mostly
> > throughput limitations
> > one should follow. This module is basically just a
> > control processor 30
> > that can interface to PLCs. It only performs control
> > functions.
> >=20
> > The Foxboro edocs indicate the interface modules
> > that can be used with
> > the the AB30 are " The Gateway interfaces to the
> > Allen-Bradley Data
> > Highway using 1771-KE/KF, 1770-KF2 Series B, or
> > 1779-KFL (in 1771-KE/KF
> > Emulation Mode) Communication Adapters". Note that
> > they are all for data
> > highway and not direct to ENET. I looked at the
> > information on the
> > 1761-NET-ENI and it seems like it should work also
> > but Rockwell has the
> > following note on their about this module: "Lets you
> > connect MicroLogix
> > (or other products with an RS-232-C port and DF1
> > protocol) to an
> > EtherNet/IP network and initiate a single-hop
> > message with any
> > EtherNet/IP device via a connected CIP message.
> > Supports the NetLinx
> > services." - Note the single hop - I am not sure how
> > your network looks.
> >=20
> > As Joe indicated, the other options to go directly
> > to the PLCs on
> > Ethernet is using either a 51 series(Solaris) or 70
> > series Integrator -
> > though these are not redundant. Basically these are
> > either a Sun Box or
> > a Windows NT PC that run the Foxboro blocks inside
> > and connect to the
> > PLC directly on Ethernet. I have not tried the 70
> > series integrator but
> > have used the 51 series. On these AB Interchange
> > software is loaded and
> > is used to communicate to the PLCs. These also have
> > a lot more
> > horsepower for blocks and your limitation is not the
> > number of PLCs but
> > the throughput on the communication network and the
> > ability of the PLC
> > to respond in adequate time. Since you mention the
> > AB30 module I am
> > guessing you have a typical Foxboro nodebus system
> > and not a standard
> > Ethernet system. You can add a second Ethernet card
> > to these integrators
> > to connect them to the PLC Ethernet network and
> > connect the first
> > Ethernet to a DNBT cart so that the integrator is
> > also on your standard
> > Foxboro nodebus network.
> >=20
> > Give me a call if you want to discuss further.
> >=20
> > Rick de la Cierva
> > DLC SOLUTIONS CORP.
> > 203-207-9917
> >=20
> >=20
> > -----Original Message-----
> > From: Marchal, Andre L.
> > [mailto:AMarchal@xxxxxxxxxxxxxxx]=3D20
> > Sent: Friday, December 28, 2001 10:36 AM
> > To: 'foxboro@xxxxxxxxxxxxx'
> > Subject: Re: [foxboro] Foxboro and Allen Bradley
> >=20
> >=20
> > Bob,
> >=20
> > I also tried to connect an INT30 to Allen Bradley
> > 5/40E's without =3D3D
> > success.
> > I used an 1761-NET-ENI to do the DF1-RS232/Ethernet
> > conversion.
> > I do not know what the problem was (improper wiring,
> > protocol, etc...).
> > Please let me know if you find a successful method.
> >=20
> > Bob, this is what I understand: the INT30 for Allen
> > Bradley can =3D3D
> > communicate
> > with up to 8 PLCs. It has 2 redundant RS232 ports
> > (that is a powerful =3D
> > =3D3D
> > and
> > easy to use feature). If you want to communicate
> > with more PLCs, you =3D
> > =3D3D
> > would
> > have to use one of the configured PLCs as a "mail
> > box".
> >=20
> > Here is what I used for my test:
> > INT30=3D3D20
> > SCSI cable P0500UX
> > Serial connector P0970VB
> > Ethernet interface 1761-NET-ENI (Allen Bradley)
> > Serial cable 1761-CBL-PM02 (Allen Bradley)
> >=20
> > Andr=3D3DE9 Marchal
> > -----Original Message-----
> > From: Robert Driscoll [mailto:rdrisco@xxxxxxxxxxx]
> > Sent: Friday, December 28, 2001 7:55 AM
> > To: foxboro@xxxxxxxxxxxxx
> > Subject: [foxboro] Foxboro and Allen Bradley
> >=20
> >=20
> >=20
> > Hello List,
> >=20
> > I am installing several Allen Bradley PLCs and I
> > want to connect them =3D
> > =3D3D
> > to a=3D3D20
> > Foxboro system. I know a few things about the
> > Foxboro hardware but I =3D
> > =3D3D
> > have a
> >=20
> > few questions.
> >=20
> > How many PLCs can a single AB30 module be directly
> > connected to? The =3D
> > =3D3D
> > module
> >=20
> > has four ports, so I assume it can go to four
> > different PLCs?
> >=20
> > I read the Foxboro on-line document and it discussed
> > the RS232 =3D
> > direct=3D3D20
> > connection to a PLC, or a connection through a CAM.=20
> > My PLCs will =3D
> > be=3D3D20
> > networked together through a hub. Is there a
> > Foxboro way of =3D3D
> > communicating=3D3D20
> > to the PLCs via ETHERNET? I could not find that in
> > the
> > documentation. Is it possible to connect the Fox
> > module(s) into the =3D3D
> > hub and
> >=20
> > have the devices talk that way?
> >=20
> > Any other pitfalls with the AB30 (or other modules
> > that may apply =3D3D
> > here)?
> >=20
> > Bob Driscoll
> > Bravo Northwest Power Systems
> >=20
> >=20
> >=20
> >
>
_________________________________________________________________
> > Join the world's largest e-mail service with MSN
> > Hotmail.=3D3D20
> > http://www.hotmail.com
> >=20
> > =3D3D20
> > =3D3D20
> >
>
___________________________________________________________________
> > This list is neither sponsored nor endorsed by The
> > Foxboro Company.
> > Use the information obtained here at your own risk.
> > For disclaimer,
> > see
> >
> http://www.thecassandraproject.org/disclaimer.html#maillist
> >=20
> > list info: //www.freelists.org/list/foxboro
> > subscribe: =20
> >
> mailto:foxboro-request@xxxxxxxxxxxxx?subject=3D3D3Djoin
> > unsubscribe:
> >
> mailto:foxboro-request@xxxxxxxxxxxxx?subject=3D3D3Dleave
> >=20
> =3D=3D=3D message truncated =3D=3D=3D
>=20
>=20
> __________________________________________________
> Do You Yahoo!?
> Send your FREE holiday greetings online!
> http://greetings.yahoo.com
> =20
> =20
>
___________________________________________________________________
> This list is neither sponsored nor endorsed by The Foxboro
Company.
> Use the information obtained here at your own risk. For
disclaimer,
> see
http://www.thecassandraproject.org/disclaimer.html#maillist
>=20
> list info: //www.freelists.org/list/foxboro
> subscribe:
mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin
> unsubscribe:
mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave
> =20
> =20
>
___________________________________________________________________
> This list is neither sponsored nor endorsed by The Foxboro
Company.
> Use the information obtained here at your own risk. For
disclaimer,
> see http://www.thecassandraproject.org/disclaimer.html#maillist
>=20
> list info: //www.freelists.org/list/foxboro
> subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin
> unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave
___________________________________________________________________
This list is neither sponsored nor endorsed by The Foxboro Company.
Use the information obtained here at your own risk. For disclaimer,
see http://www.thecassandraproject.org/disclaimer.html#maillist
list info: //www.freelists.org/list/foxboro
subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave
___________________________________________________________________
This list is neither sponsored nor endorsed by The Foxboro Company.
Use the information obtained here at your own risk. For disclaimer,
see http://www.thecassandraproject.org/disclaimer.html#maillist
list info: //www.freelists.org/list/foxboro
subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave
Other related posts:
- » Re: [foxboro] AW: Foxboro and Allen Bradley, multiple PLCs
