Moore Industries NET Concentrator System AOM, Руководство пользователя

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NET Concentrator System
®
NCS
- 23 -
Moore Industries-International, Inc.
www.miinet.com
Configuration Figure 7. Data Logger Configuration Web Page
Data Logger
The Data Logger records process variable data at a
selected interval from specified I/O channels. From
the Data Logger menu item you can access web
pages where you can configure the data logger, view
status or data log records.
The Interface Modules are capable of storing 64,000
points of time-stamped data. Upon power loss,
non-volatile memory retains the most recently stored
18,000 data log records. A station can be configured
to store data from one, or all, of its input channels.
Sampling rate is user-selectable for any period
between 100msec to once every 24 hours. Follow
the directions below to complete the Data Logger
configuration.
Upon recovery from power loss, or if the Data Logger
is intentionally stopped and then started, new data is
appended to the previously saved data.
Note:
Before configuring the Data Logger, ensure that
you log on with the appropriate security rights. For
information on security rights, see the Interface
Module Security Overview section of this user’s
manual.
1. From the Home Page of the Interface Module,
select the
Configure Data Logger
option located in the
Data Logger
dropdown menu.
2. In the
Channel Selection
area, choose the
channels that you want to log. If you want to log more
than one channel, hold the
Control
key down while
selecting the multiple channels. Alternatively, you
can use the
Shift
key to select a group of contiguous
channels.
3. Next, specify the
Sample Period
at which you
want to log the selected channels.
4. In the Maximum Records Per Channel area, enter
the number of records per channel you would like to
log. If you are logging two channels and you entered
a value of 25, your data log file will contain a total
of 50 records. If the number you enter exceeds the
maximum number of records, the maximum number
will be adjusted when you click Update.
5. Now select how you would like the Data Logger
to react if power is lost to the Interface Module while
the Data logger is running. By selecting Start the Data
Logger , the Data Logger will be restarted upon power
up. However, this only applies if the Data Logger was
running when power was lost. These settings do not
apply if the logger was off prior to power loss.
6. After reviewing your configuration, click the
Update
button to send the setup details to the
Interface Module.
Note:
Clicking the
Update
button clears the log,
whether or not changes have been made.
7. Finally, click the
Start
button to start the data
logger.
You can now view the recorded data on the
View
Logger Status
option from the
Data Logger
menu.
When the
Maximum Records Per Channel
value has
been reached the data logger will overwrite the oldest
stored data.
Refer to the Interface Module Web Server section
(Step 5) of this manual for information regarding
downloading of logged data.
Note:
Data cannot be downloaded while
the Data Logger is running.