Write request to the RNI through the Matrikon OPC.

[felip...@gmail.com]

Hello,

I bought the Remote Network Interface (RNI), to communicate the RS3
(DCS from Fisher Rosemount), with another Control System.

In my case I will communicate the RS3, through an OPC Server from
Matrikon and the RNI, with the PCS7 (a Hybrid DCS from Siemens).

I found some problems when I was trying to make a written request to
the RNI,

In the configuration parameters of the RNI, I found that I can make 5
write requests to the RNI every second, but when I tried to make this,
I could not complete the task.

¿I do not know if the problem is from the Matrikon Server or the RNI?

Anybody Who has communicate with the RNI, please help me and tell me
How you did it, What is the best way to make the write request to the
RNI through the Matrikon OPC.

[Tom Turner]

Dear Fcela,

I have RS3 experience with the RS3, RNI and Matrikon OPC Server.
Perhaps I can help.

I have demonstrated the capabilty to set RS3 registers such as
setpoints from remote systems.

Before any RS3 register can be changed remotely, the Control Block
must be configured to accept a remote instruction. This is the first
place I would look.

If you have RS3 User Manuals, check out Supervisory Computer block
mode.

If this doesn't help, please give me more information on what you want
to write to RS3.

Regards,

Tom T.


On Apr 1, 5:39 pm, "felipec...@gmail.com" <felipec...@gmail.com>
wrote:

[felip...@gmail.com]

Dear Tom,

Thank you for your help.

I already configured the parameter for allow the write request in a
control block; this parameter is located in the “Continuos Face
Plate”.

I found the problem when I try to make a cyclic demand of the write
request, every second, to the Matrikon OPC Server; when I look at the
OPC Client in which I make the write request, I see than some requests
are not completed and the queue size every time is longer. For I get a
completed request, I need to send 5 write request every five seconds,
but I don’t know why I can’t get the response than I found in the
Emerson documentation (five request every one second)

I don’t know if changing the RNI configuration file, I can get a
better communication, for example, the “DDS.cfg” configuration file or
another configuration file.

Regards,


Felipe Cela



On Apr 2, 3:52 am, Tom Turner <tom.tur...@newenglandcontrols.com>
wrote:

> > RNI through the Matrikon OPC.- Hide quoted text -
>
> - Show quoted text -