B&B Electronics WOP-2121V-N4AE - Manual - Manual (Page 374)

12
PM Designer Operation Manual
12-2
CHAPTER 12 DATA COLLECTION AND HISTORIC DISPLAYS
12.1.2. General Settings
Use the General page to define the general settings for a data logger. The following is an example of the General page.
The table below describes each property in the General page.
Property Description
Name The data logger's name. The maximum length of the name is 48 characters.
ID The data logger's ID number. Select a number between 1 and 16. The number is
unique among all data loggers of the panel application.
Use battery backed RAM Check this option so the logging buffer of the data logger will be located in the battery
backed RAM. The logged data will not be lost after power down if the battery backed
RAM is used for the logging buffer. If this option is not selected, the logging buffer will
be located in ordinary RAM and the data logger will clear the logging buffer whenever
the target panel is powered up.
Sample Size The size of the data to be sampled. The unit is word.
Number of Samples Specifies the maximum number of samples that the logging buffer of the data logger
can hold.
Logging Buffer Size The size of the logging buffer. The unit is word. The formula to calculate the size is:
Logging Buffer Size = Number of Samples * (Sample Size + 5)
Latest Sampled
Data Word
Address You can use the addresses shown here to refer to the latest sampled data of the data
logger for configuring screen objects and writing macros.
Read Address Specifies the variable representing the data block to be sampled.
Click to enter an address for this field. Click to select a tag for this field. The
size of the data block is specified in the Sample Size field.
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