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Chapter 4. Basic instructions
4-37
The fault of conveyer detecting circuit (example of TRTG instruction)
1. Operation
Detect the fault of conveyer by check that a product is passed within a specified period or not.
2. System diagram
3. Program
0
1
2
.
.
.
.
.
.
F
Input module
P02
Conveyer
Detector
Supplier
(
M100
)
P020
T005
[
TRTG T005 00200
]
If there is no product passing during 20
seconds, the timer turns off and M100 is
switched off.
During normal operation, the M100
keeps on state.
Detecting
signal
P020
T=20sec
T5
M100
Timer
contact
Operating
indicator