Mitsubishi Electric melsec q00ujcpu User Manual page 186

Programmable controller
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(b) When only a device is specified
Either word device or bit device can be specified.
1) When a word device is specified
Monitor data is collected when the current value of the specified word device becomes the specified value.
Enter the current value (in decimal or hexadecimal).
2) When a bit device is specified
Monitor data is collected when the execution status of the specified bit device becomes the specified status.
Select the execution condition (on the rising edge or falling edge).
(c) When a step number and device are specified
Monitor data is collected when the status previous to execution of the specified status or the status (current
value) of the specified bit device (word device) becomes the specified value.
When "Step No.[100]=<-P->, Word device [D1]=[K5]" is specified as an execution condition, a monitor execution condition is
established on the rising edge of the step 100 and also D1=5.
X0
M0
Figure 6.31 When the rising edge of the step 100 and D1=5 are specified
The monitor interval of GX Developer depends on the processing speed of GX Developer.
For the monitor execution conditions established at the interval shorter than the monitor interval of GX Developer, monitor is
executed only when the monitor execution condition is established at the monitor timing of GX Developer.
Step No.
D1=5
Monitor timing
(CPU module)
100
100
M0
X0
Figure 6.32 Monitor timing of GX Developer
CHAPTER6 FUNCTIONS
Step 100
Y20
INC D1
100
100
1
2
3
4
5
6
7
8
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