B&B Electronics WOP-2121V-N4AE - Manual - Manual (Page 355)

11
PM Designer Operation Manual
11-2
11.2. Setting Up Alarm Processing
You can set up the alarm processing with the Alarm Properties dialog box. In this dialog, you can determine the required
memory for alarm logging buffer, choose default color and font for the alarm message, specify how to save the alarm
history records to a text file and configure the global alarm marquee if you want to show it on the screen. To open the
dialog box of alarm processing, please double click the node named Alarms in the PM Designer's Project Manager tool
window. The following is an example of the Alarm Properties dialog box.
The table below describes each property in the Alarm Properties dialog.
Property Description
Size The maximum number of records that the alarm logging buffer can hold. For
example, 100 means when the 101
st
alarm happens, the 1
st
record will be
overwritten.
Alarm Logging
Buffer
Required
non-volatile
memory The size of the alarm logging buffer. The unit is byte. The formula to calculate the
size is: Alarm Logging Buffer Size = Number of Records * 20 + 16
Continued
CHAPTER 11 ALARMS AND ALARM DISPLAYS