Mitsubishi MELSEC F FX-40DU-E Handy Manual page 71

6.
SAMPLING MODE
IMPORTANT REMINDER
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(1)
When the sampling settings are registered, the FX-40DU-E must be set to RAM
operation. If it is set to EPROM operation at the time of registration the message "CAN
NOT WRITE IN DU MEMORY" will be displayed.
(In this case set DIP switch N0.3 at the rear of the unit to the ON position to set RAM
operation.)
(2)
Once registered, the conditions are protected by the back-up battery and will not be
lost from the memory when the power to the FX-4ODU-E is switched OFF. However,
all sampling data will be cleared when the power is switched OFF and the power should
therefore be left ON continuously if sampling is to be performed over long periods.
(3)
Note that, if the functions tabled below are selected during sampling, sampling will be
suspended, or the sampling data will be cleared.
r . -
Funcf,.dn--~
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I-'
~ a m p l i n ~ Sampling Data
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O i n E R VOUE SET
CLOCK
~ . s p e n a e a n n c n :ne c ocn s
samplea - p to
I
me of
I 1 I
set (if only time display, sam-
I
suspension is preserved, sam-
I
DATA TRANSFER
Reading1
comparison
DATE TRANSFER
Writing
DATA THROUGH
(4)
Bear in mind that the timing of sampling is managed in accordance with the clock setting
in the OTHER MODE. Accordingly, when performing sampling where the exact time is
important, make sure that the time set in the OTHER MODE is accurate.
piing continues).
Sampling continues
Suspended if conditions
change, continued if conditions
remain the same.
Suspended
piing continues after clock has
been set.
Sampling data is preserved
during reading or comparison
Data sampled up to time of
suspension is preserved.
Data sampled up to time of
suspension is preserved.