Description
If you want to save the information captured by trending,
Check the box besides Log Samples to File.
The following dialog box will appear requesting for file name and path. The file is saved as
‘csv’ (comma separated values) file, which can be viewed and manipulated with
compatible third-party software. Ensure that the sample rate not less than 5 seconds,
otherwise some data may not get written to the file.
To limit the size of the saved file, enter a number in the Limit File
Capacity To box.
The minimum number of samples is 1000. At a sampling rate of 5
seconds (or 1 sample every 5 seconds), the file will contain data
collected during the past 5000 seconds. The EnerVista 745 Setup
software will automatically estimate the size of the trending file.
Press “Run” to start the data logger.
If the Log Samples to File item is selected, the EnerVista 745 Setup
software will begin collecting data at the selected sampling rate and will
display it on the screen.
The data log will continue until the Stop button is pressed or until the
selected number of samples is reached, whichever occurs first.
The 745 event recorder can be viewed through the EnerVista 745 Setup software. The
event recorder stores transformer and system information each time an event occurs. A
maximum of 256 events can be stored, where E256 is the most recent event and E001 is
the oldest event. E001 is overwritten whenever a new event occurs. Refer to Event Records
on page 6–17 for additional information on the event recorder.
Use the following procedure to view the event recorder with EnerVista 745 Setup:
The EnerVista 745 Setup software provides a means to program the 745 user map
(Modbus addresses 0180h to 01F7h). Refer to GE publication GEK-106636B: 745
Communications Guide for additional information on the user map.
Select a connected device in EnerVista 745 Setup.
Select the Setpoint > User Map menu item to open the following
window.
This window allows the desired addresses to be written to User Map locations. The User
Map values that correspond to these addresses are then displayed.
4.6.6 Viewing Actual Values
You can view real-time relay data such as input/output status and measured parameters.
From the main window menu bar, select Actual Values to open a
window with tabs, each tab containing data in accordance to the
following list:
- System status:
- The status of the logic inputs and virtual inputs/outputs
- Targets.
- The status of the output relays.
- Any self-test errors.
Metering data:
- Instantaneous current measurements including phase, neutral,
and ground currents for each winding, along with differential,
restraint, positive-sequence, negative-sequence, zero-sequence,
and ground restraint currents.
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