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6.
DATA LOGGING
Data logging will be done in
LogBox-BLE
’s internal memory. The internal memory capacity is up to 140,000 logs. The number of logs that can be
stored in the internal memory depends basically on the number of input channels that are enabled, as well as factors such as recording or not
recording the digital input event.
Any channel types (analog, counts, or events) can be recorded in the memory. In the case of analog channel logs or the digital input in pulse
counting mode, the logging is periodic and has its interval configured through the configurator software. At the end of each log interval, the current
values of the enabled channels are logged in the memory. In case the digital input is configured as event log, the logs detected by it will be
performed asynchronously to the frequency of the other channels and will be performed at the moment the event occurs.
There are several ways to start and stop logs, many of which can be combined freely. During logging, all selected channels will be logged in the
memory and the range between logs will be respected.
Depending on the type of start and stop selected, there may be log “snippets” in the memory and, therefore, periods with no logged data. This is
fully compatible with the device and is not a problem at all.
In addition to the start and end modes, you must also configure the memory mode, which can be:
●
Circular Memory: Logs will be made continuously in the selected memory. When the memory is full, the oldest data will be erased so that the
most recent data can be saved.
●
Full Memory: Logs are terminated when the memory has no more space available.
The available start modes are as follows:
●
Immediate Start: The logs will start immediately after reconfiguring the device.
●
By Date/Time: The logs will start in the configured date/time.
●
Via Keyboard: There is a screen in the display where you can change the log status to
enabled
. Therefore, the logs will start at this point if they
are not already started.
●
Via Digital Input: When the Digital Input is triggered, the logs are started. In this case, the Digital Input channel must have been set to Log
Control. To control the logs by Digital Input, 4 modes are possible:
○
Starts logs at each rising edge;
○
Initiates logs at each falling edge;
○
Logs at logical level “1” - logs while at logical level “1”;
■
In this mode the configured stop mode should be "Via Digital Input" too.
○
Logs at logical level “0” - logs while at logical level “0”;
■
In this mode the configured stop mode should be "Via Digital Input" too.
●
Via Software: Logs are started with a
NXperience-BLE
or
NXperience
command.
●
Daily: The logs are started every day, at the configured time. A Daily log start mode also requires a Daily log end mode!
The available end modes are as follows:
●
Memory Mode Only: The configuration chosen for the “memory mode” will dictate the logs behavior: if “full memory” is chosen, the logs will end
as soon as there is no more memory space; if “circular memory” is chosen, the logs will continue indefinitely.
●
By Date/Time: The logs will be finalized at the configured date/time.
●
Via Keyboard: There is a screen in the display where you can change the log status to
disabled
. Therefore, the logs will be paused at this point
if they are not already paused.
●
Via Digital Input: When the Digital Input is triggered, the logs are ended. In this case, the Digital Input channel must have been set to Log
Control. To control the logs by Digital Input, 4 modes are possible:
○
Pauses logs at each rising edge;
○
Pauses logs at each falling edge;
○
Pauses at logical level “0” - pauses while at logical level “0”;
■
In this mode the configured start mode should be “Logs in Logical level “1””.
○
Pauses at logical level “1” - pauses while at logical level “1”;
■
In this mode the configured start mode should be “Logs in Logical level “0””.
●
Via Software: Logs are ended with a
NXperience-BLE
or
NXperience
command.
●
Daily: The logs are paused every day, at the configured time. A Daily log end mode also requires a Daily log start mode!
Number of Channels and Logs Maximum Capacity
Number of Enabled Channels
Logs Maximum Capacity
1
143,147 logs from 1 channel
2
111,336 logs from 2 channels
3
91,093 logs from 3 channels
4
77,079 logs from 4 channels
Table 04
– Data Logging
