Halytech
hydroSpider2 User’s Manual v1.23
Page 35
5.5.4
Channel Logging
Channels log differently depending on their channel type:
Switch type channels automatically log any input change. If a switch input turns ON and then
back to OFF, both of these changes are logged separately, including the duration (in seconds)
for how long the switch was in the ON state.
Event channels automatically log a single record per pulse
2
All other channel types log at a regular interval (called the
logging period
), which can be
specified individually for each channel.
Regardless of the logging period or channel type, all channels are logged automatically every
midnight. This ensures that at least one sample is recorded every day, even with slowly varying
inputs.
5.5.5
Advanced – Additional Input Options
Each channel type has a number of configurable options which can change the channel’s behaviour
or provide additional data.
To change a channel’s options, simply click on the options button (the ‘cog’) to the right of the
channel. This will bring up a dialog:
Options dialog
2
Log records are generated no more than once per second. If more than one pulse is detected on an event
channel in a single second, the number of pulses counted during that second will be logged.
