Advanced Trace Settings

Overview

The Advanced Trace Settings dialog box opens if you click the Advanced... button in the Trace Configuration dialog box with Record Settings. It includes settings for the data recording, such as buffer size on the runtime or development system that the trace editor reads. The interval that the application uses to record data is derived from the task configuration.

Advanced Trace Settings dialog box

You configure the buffer size by defining a number of samples. Using settings from the task configuration, EcoStruxure Machine Expert calculates time intervals according to the number of samples. The calculation is possible only if the task cycle time is determinable. The result is displayed on the right, outside the table in a standardized style, for example, 1h1m1s1ms .

Description of the Parameters

Parameter	Description	Comment
Measure in every n-th cycle	Defines how often a data record is taken (every cycle, every second cycle,...). This is the scanning rate. Default: 1 Therefore, one data set is recorded each cycle.	For example, the scanning interval of the data recording is every 10 ms.
Recommended runtime buffer size (samples)	The maximum number of samples that EcoStruxure Machine Expert calculates and that the runtime system can store per trace variable. EcoStruxure Machine Expert calculates the number in the task cycle time from the value in Refresh interval and the value in Measure in every n-th cycle. The Recommended runtime buffer size (samples) is only used if the option Override runtime buffer size is not activated.	Maximum length of the time interval during which the runtime system collects data, for example, 2 s (if Refresh interval = 500 ms and Measure in every n-th cycle = 1).
Override runtime buffer size	When this option is selected, the application does not use value set for Recommended runtime buffer size (samples). The number of samples per trace variable that the application records. This is the size of the runtime buffer. Range: From 10 on, but not larger than the value set for the trace editor buffer. Default value: 100	Maximum length of the time interval during which the runtime system collects data, for example, 6 s.
Trace editor buffer size per variables (samples)	Limits the trace buffer provided by EcoStruxure Machine Expert for internal use.	–