Yokogawa Data Logging Software GA10 - Manual (Page 74)

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IM 04L65B01-01EN
4.9 Things to Consider
4.9.1 Time Zone and Daylight Saving Time
Be sure to set the same time zone and daylight saving
time settings on the PC running the GA10 server, the PC
running the GA10 client, and the data collection devices.
If they are not the same, data time may not be displayed
correctly.
4.9.2 Error Data
If collected or recorded data is in error, it is displayed
or recorded using indications other than values. For the
different types of error data, see “Data that indicates
errors.”
• Data Display in a Digital Monitor Set or Meter
Monitor Set
Display Data Condition *
+OVER +OVER
–OVER -OVER
INVALID INVALID
BURNOUT BURNOUT
ILLEGAL ILLEGAL
LACK LACK
OFF OFF
* See “Data that indicates errors.”
• Display in the Trend Monitor Set
Waveform Cursor Value Data Condition *
Drawn exceeding the
scale upper limit
+OVER +OVER
Drawn exceeding the
scale lower limit
-OVER -OVER
Nothing INVALID INVALID
BURNOUT BURNOUT
ILLEGAL ILLEGAL
LACK LACK
(blank) OFF
* See “Data that indicates errors.”
• Data in Recording Data Files
Data in Binary Data
Files
Data in Excel Data
Files
Data Condition *
+OVER +OVER +OVER
–OVER –OVER -OVER
INVALID INVALID INVALID
BURNOUT BURNOUT BURNOUT
ILLEGAL ILLEGAL ILLEGAL
LACK LACK LACK
OFF OFF OFF
* See “Data that indicates errors.”
• Data That Indicates Errors
The following table shows the different types of data
that indicates errors.
Data Description
+OVER +Over-range data
–OVER -Over-range data
SKIP Channels that have been set to skipped
INVALID Invalid data
The data type and decimal place specified on
the Tag Setting Page do not match those of the
collected data.
BURNOUT Burnout data
ILLEGAL Illegal data
LACK Indicates that the device failed to acquire the data
OFF Indicates one of the following conditions.
• Data collection has not been performed since
the project was opened.
• Channels are not assigned to tags.
• When the data time is set to PC time, the
collected data is SKIP data.
• Communication error condition
• Initialized condition as a result of changing the
Device Setting Page or Tag Setting Page while
data collection is stopped
• An attempt was made to collect data from a
device using the backfill function, but there is
no data recorded in the device.
4.9.3 Reflecting Changes Made on the Monitor
Page to the Setting Page
If the access privilege is Owner or Manager, changes
made to the following settings on the Monitor Page are
reflected on the corresponding Setting Page (Display
Group or Acquisition & Monitor). If the access privilege is
Operator or Monitor, the changes are not reflected.
• Monitor Set size adjustment
• Waveform display on/off state, Y-axis display on/
off state, Detail/Compact, Zoom in/Zoom out, and
movement in the Trend Monitor Set
• Trip line position
4.9.4 Changing the Time on the Device after
Starting Data Collection and Recording
Do not change the time on the device after starting data
collection and recording, because doing so will cause
adverse effects on the monitor screen and recorded data.
Related topic “Changes to devices during data
collection and recording”: Q11
Chapter 4 Monitoring Data Collection