Re: [foxboro] CFT10 on a FBM43
- From: "Gillis, Dale" <Dale.Gillis@xxxxxxxxxxxxxxx>
- To: "'foxboro@xxxxxxxxxxxxx'" <foxboro@xxxxxxxxxxxxx>
- Date: Mon, 23 Mar 2009 11:44:26 -0500
Thanks for clearing this up guys.
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On
Behalf Of Johnson, Alex P (IPS)
Sent: Monday, March 23, 2009 1:22 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] CFT10 on a FBM43
Tom is correct.
The CFT10 is an FBM. It sits directly on the 100-Series fieldbus like
any other FBM.
Here's an excerpt from the PSS (PSS 1-2B3 C):
I/A Series System Fieldbus Interface
Connection to an I/A Series System is by direct connection to the
Fieldbus, as with other Foxboro Fieldbus Modules. This bus operates at
up to
268 kbaud, and incorporates dual circuits for faulttolerant operation.
The scan rate is determined by the configuration of the I/A Series
system. Direct digital communication removes the conversion errors which
are inherent in other systems.
The information which can be modified and displayed from the I/A Series
System Workstation is:
* Digital Output (Measured Values) in user selected Engineering Units
* Description
* Flowtube Calibration Database
* Engineering Units
* Location
* Tag Number
In addition, the Totalized Mass measurement can be reset to zero, and
the Zero point of the Flow measurement calibrated from the Workstation.
To ensure system security, once the I/A Series System has switched the
transmitter on line, remote operators cannot switch it off line or
change its configuration through the HHT or Display/Keypad (though they
can still read measurements and examine the configuration). This is to
ensure that the operation of a control loop cannot be inadvertently
upset by an operator in the field.
Regards,
Alex Johnson
Invensys Process Systems
10900 Equity Drive
Houston, TX 77041
713 329 8472 (desk)
713 329 1600 (operator)
713 329 1944 (SSC Fax)
713 329 1700 (Central Fax)
alex.johnson@xxxxxxxxxxxxxxxx
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Badura, Tom
Sent: Monday, March 23, 2009 11:13 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] CFT10 on a FBM43
Dale,
We use CFT10s and we were told that the only way to connect digitally to
the IA system is via the 100 series fieldbus. There are redundant
fieldbus terminals on the CFT10 for this purpose. I do not believe you
can connect a Foxcom FBM directly to the current output (I-, I+) of the
CFT10 as you can with other Foxboro instruments. There is also not a
Digital Output mode configuration option for the current output of the
CFT10. I do believe you need to use the ECB22 for the CFT10 and this is
not a child ECB. When we installed a new 200 series FBM system we had
to install a separate FCM100E just to provide the 100 series fieldbus
for the CFT10s. As a side note the new CFT50 does not provide any
Foxcom capability only Hart.
Tom Badura
Plastics Engineering Company
920-458-2121 x3366
tbadura@xxxxxxxxxx
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Gillis, Dale
Sent: Friday, March 20, 2009 6:05 PM
To: 'foxboro@xxxxxxxxxxxxx'
Subject: [foxboro] CFT10 on a FBM43
Hi all
I have a CFT10 Mass Flow Transmitter and I want to hook it up to a
FBM43. I'm running P91 Version 8.3 Software and it is hanging off a
FCP270 FT Pair. After reading the manuals B0193AW I can only find an
ECB22 for a CFT10 and I think this is when you hang it off the PIOBUS
which I'm not doing. I would rather use the 4 to 20 mA Signal as an
input to the FBM43. I have 6 other channels working on this FBM with
FoxComm Transmitters in Digital Mode 4800 BAUD and they work fine. When
I make my CFT10 a Child (ECB18) of this FBM43 it looks like it
communicates and it goes online ok but I cannot talk to it with IFDC
which is on the same BOX (P91). I keep getting the following errors :
over and over again...........Any help or guidance would be greatly
appreciated.
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