Is the Micro I/A similar to the CPs in that the current setpoints are only
saved to the database via upload? A checkpoint only saves the setpoint
and alarm parameters that are in the block at the time of configuration. To
save the current parameters that are changeable by the operator
I believe that one of our plants accomplishes this by having the historian
(the legacy historian, in our case) generate a report and then reading in
the report via a substitution list on the Display Manager. If you want, I
can delve into this some more, but I'm leaving on vacation for a week
The LMHost file is used by the NetBEUI protocol to resolve network
addresses. It is a hold-over from the old LAN Manager network operating
system, hence LMhost. I am not giving you much information here as I am
pulling from memory here, but I believe that is the purpose of the LMhost
file.
I solved similar problems by adding a PIC to control the upper limit of the
FIC.
Recently, I have been wondering if it would not be more efficient to link
the output of the PIC to the BIAS input of the FIC. (The output of the PIC
would have a range of -100 low to 0 high.) But what I have done
I don't know for certain about the C precursor commands. I am familiar
with C pre-processor commands. I wonder if precursor refers to them.
In case you are not familiar with them, the most common ones that I use are:
#include filename
#define MANUAL FALSE
#define AUTO TRUE
#define LOCAL
If the operators can interact with the process, I recommend putting GDEV
blocks to AUTO (then WAIT 2 seconds for the block to see it) right before
you use each one. It is the only way to be sure that the GDEV will be in
the correct auto/manual state when you need it to be. If you are going to
You have really opened up a can of worms here, Stan.
We use Integrator 30s at our plant. They cause a lot of pain in both set up
and operator usage. The work is done in the PLC 5s and the I/A is used for
operator interface. The Basic Processing Cycle of the AB Gateways is 2
seconds. Our
Is there a history of the messages passing through this list archived at the
web server or do I have to keep saving messages on my local machine? Many
interesting details and ideas are presented here, but I cannot possibly save
them all. Soon I will be guilty of asking a question for the third
When we converted to I/A about six years ago, we got the big Sony monitors
with the touch screen option. They are great to work with and the operators
really like them. Apparently they have a life span of about six years of
continuous use. We have burned out seven of them in the past three
My first suggestion is to get reservations somewhere else for 8:15.
As I recall, last year we closed down the available room in the convention
center. (Okay, we got kicked out.) Then we progressed to a restaurant. We
closed down the restaurant about 11:00. We all agreed to call it a night.
AW + a third party software which reads and sends alarms/messages to a
client PC
I've never seen a solution like this.
I believe that Logmate, www.logmate.com, has a product like this. I met
with them in the Invensys Pavilion at last year's Users' Group meeting in
Boston. In the end we
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