Rockwell Automation T6200 Compressor Anti-Surge and Capacity Controller - Manual (Page 82)

HMI-6200 Operator Interface
6-16
Scheduler –
Critical and control related timed-tasks normally reside in the T6200 control module(s). However,
timed tasks for reports, supervisory recipes, trend and math are typically handled by the HMI-6200
Scheduler module.
The timed-task module (scheduler) supports reports, logs, recipes and general actions (math and logic
functions). It provides for the scheduling, definition and detection of timed tasks. The tasks may be
scheduled to execute automatically once, or any number of times at fixed intervals as pre-defined by the
user.
The Clock event is used to trigger actions based on regular time intervals such as timers and counters.
The base time (minimum of 100 ms) is set in the Time column. In the Tag column, one must configure
the tag that will receive the result from the expression configured in the Expression column. The
Disable field can be used to prevent an expression in the line from being executed.
The Calendar event is used to trigger actions on a scheduled time. Also, it is possible to specify a fixed
date for an event in the Date column.
The Change event is used to trigger an action upon a change in tag value (such as special trend on incip-
on). In the Trigger column, one must configure a tag that will be used to trigger the event when the
change in value has occurred.
FIGURE 6-9
Workspace Window
Task Tab
FIGURE 6-10
Scheduler
Configuration
Example for Incip-
Initiated Trending