Functions for Trend

ResetTrend(“YT Trend Name”, Pen number)

Resets min/max values of the pen to the default value in the YT trend.

SetPenStatus(“YT Trend Name”, Pen number, Option)

Shows or hides a pen from the YT trend.

SetTrendRatio(“YT Trend Name”, Pen number, Min value ratio to set, Max value ratio to set)

Changes min/max values ratio of the pen in the YT trend.

SetTrendZoom(“YT Trend Name”, Pen number, Min value to set, Max value to set)

Changes min/max values of the pen in the YT trend.

TrendCsvWr(“TrendName”, Location)

Saves the trend data as a CSV file.

TrendGetPenVal(“YT Trend Name”, Pen number, Set value)

Returns set value from the min/max value of the pen in the YT trend.

TrendSetPenVal(“YT Trend Name”, Pen number, Set value, min/max value to set)

Sets description or min/max value of the pen in the YT trend.

Resets min/max values of the pen to the default value in the YT trend.

ResetTrend(“YT Trend Name”, Pen number)

You can reset the minimum and maximum value of a specified pen to the default value.

YT trend name: The name of the YT trend object.

Pen number: Pen number to reset min/max value (1~16).

Resets the min/max value of the first pen to the default value in the YT trend object named “Trend”.

ResetTrend(“Trend”, 1);

Shows or hides a pen from the YT trend.

SetPenStatus(“YT Trend Name”, Pen number, Option)

You can show or hide the specified pen from the YT trend.

YT trend name: The name of the YT trend object.

Pen number: Pen number to show or hide (1~16).

Option: Show 1, Hide 0.

Shows the first pen in the YT trend object named “Trend”.

SetPenStatus(“Trend”, 1, 1);

Changes min/max values ratio of the pen in the YT trend.

SetTrendRatio(“YT Trend Name”, Pen number, Min value ratio to set, Max value ratio to set)

Changes the minimum and maximum value ratio of the pen by assigned set values. Changed values can be reset by using the ‘ResetTrend’ subroutine. Each parameter has the following criteria:

YT trend name: The name of the YT trend object.

Pen number: Pen number to change min/max value ratio (1~16).

Min value ratio to set: A ratio of minimum value (0~99).

Max value ratio to set: A ratio of the maximum value (1~100).

The minimum value ratio cannot be bigger than the maximum value ratio.

Changes the min/max value ratio of the first pen in the YT trend object named “Trend” as 20% and 80%.

SetTrendRatio(“Trend”, 1, 20, 80);

Changes min/max values of the pen in the YT trend.

SetTrendZoom(“YT Trend Name”, Pen number, Min value to set, Max value to set)

Changes the minimum and maximum values of a pen by assigning set values. Changed values can be reset by using the ‘ResetTrend’ subroutine. Each parameter has the following criteria:

YT trend name: The name of the YT trend object.

Pen number: Pen number to change min/max value (1~16).

Min value to set: A value larger than the current minimum value but smaller than the current maximum value.

Max value to set: A value larger than the current minimum value but smaller than the current maximum value.

The minimum value to set cannot be bigger than the maximum value to set.

Changes the min/max value of the first pen in the YT trend object named “Trend” as 30 and 100.

SetTrendZoom(“Trend”, 1, 30, 100);

Saves the trend data as a CSV file.

TrendCsvWr(“TrendName”, Location)

Saves the assigned TrendName to the assigned location in CSV file format.

When you assign 0 at Location, it means the local. The value 1 means the SD/MMC and the value 2 means the USB.

You can also assign the Location as shown below.

0: _LOCAL_

1: _SDMEM_

2: _USBMEM_

The file is saved as “Trendname_MMDDHHmmss.CSV”.

Saves the trend object named “Trend” as a CSV file in the USB memory.

TrendCsvWr(“Trend”,2);

Returns set value from the min/max value of pen in the YT trend.

N = TrendGetPenVal(“YT Trend Name”, Pen number, Set value)

Returns min/max value of the specified pen.

YT trend name: The name of the YT trend object

Pen number: Pen number to return min/max value (1~16)

Set value

Minimum value

Maximum value

Current value in historical mode

Current time in historical mode (Numerical value, time_t format)

Minimum value of the current frame in historical mode

Maximum value of the current frame in historical mode

Current time in historical mode (String value, YYYY-MM-DD hh:mm:ss)

Returns the maximum value of the first pen in the YT trend object named “Trend”.

N = TrendGetPenVal(“Trend”, 1, 3);

Sets the description for the min/max value of pen in the YT trend.

N = TrendSetPenVal(“YT Trend Name”, Pen number, Set value, min/max value to set)

Configure the settings of the specified pen in the YT trend.

YT trend name: The name of the YT trend object

Pen number: Pen number to change the settings.

Set value: Description 1, minimum value 2, maximum value 3

The function returns 1 when the value set is successful. Otherwise, the function returns 0.

Set the minimum value of the first pen in the YT trend object named “Trend” to 10.

N = TrendSetPenVal(“Trend”, 1, 2,10);