Mitsubishi F940GOT-SWD-E Operation Manual page 84

Graphic Operation Terminal F940GOT
n n n n Important point
• Mechanism and responsibility of sampling
Sampling is performed in the following way.
1st time
2st time
3st time
n
* It is recommended to take the sampling time of 1 second or more both for a trigger and a constant cycle.
c) END COND. (Paragraph 5.2.3)
• Set the timing at which sampling is finished.
d) SAMPLING DEV. (Paragraph 5.2.4)
• Specify a data register (16 bits) whose data is to be
• The set condition is backed up by the battery even if
GOT
When the sampling
start condition is
satisfied and the
specified trigger or
constant cycle is
given, data is
transferred.
When the end
condition is satisfied,
sampling is stopped.
NUMBER: Sampling is finished when sampling has
been performed by the specified number
of times.
Trigger (DEVICE): 2,000 times maximum
Constant cycle (CYCLIC): 2,000 times maximum
DEVICE : Sampling is finished when a specified bit
device becomes ON or OFF.
TIME : Sampling is finished at the specified date
and time (date, hour, minute and second).
If the end time is not reached even after
sampling has been performed more than
2,000 times, the data acquired so far is
deleted from the oldest one and the latest
data is acquired.
acquired.
Only one device can be specified here. Then, data on
four registers, D (specified one), D+1, D+2 and D+3,
will be acquired.
the power of the GOT is turned off or another mode is
selected.
Data is always read in a
cycle of 200 to 300 ms.
Time of 500 ms maximum is required for
sampling after a trigger or constant cycle is
given. Accordingly, if the trigger or the
constant cycle is set so that sampling will be
performed at a high speed, sampling may be
performed incorrectly.
Sampling Mode 5
PLC
Data register
5-4