LS ELECTRIC XGT Series, User Manual, Page: 577 / 804

Chapter 11. Communication and Special Function Blocks
11-90
[Description of Dialog Box]
a. Trace: decides to allow the trace or not.
b. Trigger settings: specifies the condition for trace start. As a trigger condition bit condition or word
condition can be selected.
c. Bit condition: decides to use bit trigger condition or not. As for bit trigger setting, refer to 1) Setting Bit
Trigger item.
d. Device: specifies the device to monitor the bit trigger condition.
e. Word condition: decides to use word trigger condition or not. As for word trigger setting, refer to 2) Setting
Word Trigger item.
f. Device: specifies the device to monitor the word trigger condition.
g. Sampling frequency: specifies the cycle to collect data.
h. Total sample: specifies the number of samples in total to collect. The number of samples in total will be
decided based on the input sample device.
i. Samples after trigger: specifies the number of samples to collect after triggered.
j. OK: saves the changed items and closes the dialog box.
k. Cancel: closes the dialog box.
Notes
-
Use the number of samples in total and the number of samples after triggered to apply various
collection methods.
a. Number of Samples in Total = Number of Samples after triggered: a method to collect data after
triggered, which will be used when the data before triggered is not necessary.
b. Number of Samples in Total > Number of Samples after triggered
(≠0):
a method to collect data even
before triggered, which will be used when the data before and after triggered is necessary.
c. Number of Samples after triggered = 0: a method not to collect data after triggered, which will be used
when the data after triggered is not necessary.
1) Setting Bit Trigger
It uses the variation of the bit device value as a trigger condition.
[Sequence]
1. Select the check box of bit condition.
2. Input the device to use as a bit condition. Bit device format only is available.
3. Specify trigger condition, where rising or falling is available. Rising means that the device value changes
from 0 to 1, and falling means that the device value changes from 1 to 0.
2) Setting Word Trigger
It uses the variation of the word device value as a trigger condition.