Datalog Menu - Walchem WDP420 Instruction Manual

5.10

Datalog Menu

This menu is available if the data logging option has been purchased. This is indicated in the model
code by the letter U at the end of the model code. This menu allows you to save data from the controller
to a USB flash drive.
The controller has four logs, the Current Datalog, the Backup Datalog, the Event Log, and the Reset
Log. All files are in a CSV format that may be opened in a spreadsheet such as Microsoft Excel.
Current Datalog
Backup Datalog
Event Log
Reset Log
Current or Backup
Datalog
Copy Event Log
Copy Reset Log
Contains the following data taken at 10 minute intervals:
pH or ORP
Temperature (only for pH sensor types)
When the current datalog is downloaded to a USB stick, it is erased and a new
log file is started.
If the current datalog is not downloaded before it reaches its maximum size (at
least 60 days of data) the oldest data is overwritten by the newest data.
Contains the same data as the current log but it is never erased. When the backup
log reaches its maximum size (at least 60 days of data), the oldest data is
overwritten by the newest data.
Contains columns for each relay and flow switch input, as well as the date and
time. Each time any of these change state, the date and time is updated and it will
show a 1 if the relay is on and 0 if it is off, and a 1 if the flow switch indicates no
flow, 0 if there is flow. Tens of thousands of events will be recorded before the
oldest data is overwritten by the newest, the number varying with the controller's
configuration.
Consists of time stamps of when power was lost, when it was returned, and the
cause of the reset.
Place a USB flash drive with at least 10 MB capacity into the USB port on the front panel
of the controller. Press the Enter key to download the file from the controller to the disk.
The file name for the Current Datalog will be Datalog<serial number><date><time>.csv
using the date and time it was downloaded. The file name for the Backup Datalog will be
Datalog<serial number><date><time> .csv using the date and time it was created.
The controller will display the progress of the file download process. If the file was
successfully copied to the USB disk the controller will display Transfer Success.
Place a USB flash drive with at least 10 MB capacity into the USB port on the front panel
of the controller. Press the Enter key to download the file from the controller to the stick.
The file name will be Eventlog<serial number><date><time>.csv.
The controller will display the progress of the file download process. If the file was
successfully copied to the USB disk the controller will display Transfer Success, otherwise
Transfer Fail 1.
Transfer Success
Place a USB flash drive with at least 10 MB capacity into the USB port on the front panel
of the controller. Press the Enter key to download the file from the controller to the stick.
The file name will be Resetlog<serial number><date><time>.csv.
The controller will display the progress of the file download process. If the file was
successfully copied to the USB disk the controller will display Transfer Success.
Transfer Success
40
Transfer Fail 1
Transfer Fail 1