12. OPERATION OF EACH SPECIAL MODULE MONITOR SCREEN
12 - 5
MELSEC
GOT
12.1.5 Test for special function module
CAUTION
•
Read the manual carefully and fully understand the operation before the test
operation (modifying the current value of a buffer memory) of special function
module monitor.
In addition, never modify data in a test operation to a device which performs a
crucial operation to the system. It may cause an accident by a false output or
malfunction.
Testing can be performed for all buffer memory data displayed on the current monitor
screen.
This section describes the operation for changing the current value of the buffer
memory and turning the output signal from the PLC CPU to the special module on and
off.
POINTS
(1) When testing, test for the buffer memory to be written in from the PLC CPU
and the output signal that is output from the PLC CPU.
(2) Be sure to carry out the test operation with the PLC CPU in STOP status.
If the PLC CPU is tested during RUN status, it returns to the output values
and output status from the sequence program.
[Operation procedure]
Display monitor screen.
1
2)
3)
(Touch)
Data
Chg.
SET/
RESET
,
