Instructions

UM-0085-B09 DT80 Range User Manual Page 50
RG
 Default Schedule Options
All schedule options are optional. Default settings are:
• Destination is B: (internal flash drive)
• New data and alarms overwrite earlier data/alarms once the store file fills
• Space allocated for data is 1MB
• Space allocated for alarms is 100KB
• Space allocated for each logged alarm text string is 60 bytes.
 Examples
RA"Fred"(DATA:NOV:15D)15M
Schedule A is given the name "Fred". Data and alarms are stored on the internal drive and sufficient space is allocated
for 1440 readings (15 days worth, based on a 15 minute scan rate). In this case earlier data is considered more valuable
than later data, so no-overwrite mode is selected. If any alarms are defined in this schedule they will use the default
storage parameters (100KB, overwrite enabled).
Schedule Trigger
RA"Test1"("B:",DATA:OV:14D)2S 1TK 6R(4W) 7TT
Schedule ID
Schedule Name
Schedule Options
Schedule Trigger
Channel List
All schedules have a trigger, which defines when the schedule is to execute the processes assigned to it. Here are the
DT80’s schedule triggers:
• an interval of time, see Trigger on Time Interval (P52)
• a time of day, see Trigger at Date/Time (P52)
• an external event (such as a digital input transition), see Trigger on External Event (P53)
• an internal event (such as a CV changing), see Trigger on Internal Event (P54)
• a poll command, see Trigger on Poll Command (P54)
Triggers can also be conditional upon an external or internal state (that is, trigger only while a particular external state or
internal state exists) — see Trigger While (P55).
Channel List
RA"Test1"("B:",DATA:OV:14D)2S 1TK 6R(4W) 7TT
Schedule ID
Schedule Name
Schedule Options
Schedule Trigger
Channel List
Most often schedules will be created that instruct the DT80 to carry out channel-related tasks, such as scanning one or
more of its input channels and/or setting one or more of its output channels. When these schedules are created, group
the channel details (their IDs and optional instructions) together in a channel list within the schedule. Figure 7 (P48)
shows a typical schedule — notice its schedule header and channel list components.
A channel list may contain just one channel entry or many, and each channel in the list must be separated from the next
by one or more space characters. Similarly, a schedule’s header must be separated from its channel list by one or more
space characters.
The DT80 processes the channels in a channel list from left to right.