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3. AD57G MONITORING FUNCTIONS
MELSEC-A
(3) Sequence program set by using the PC CPU
A sequence program which satisfies the following items is necessary.
However, it is not necessary to create the following sequence program
if the sequence program data for monitoring control can be used without
modification.
(a) Data collection trigger
A sequence program is necessary to turn ON and OFF the bit device
which works as a data collection trigger by setting the timing using
the leading edge and falling edge of the device.
(b) Monitor device
A sequence program is necessary to store each character code of a
character string to be displayed i n corresponding word devices.
If O O H character code is stored, the subsequent characters are
blank.
(4)
Restrictions when creating monitor screens
See Section 4.9 for restrictions when using a monitoring function in
which a character string is t o be displayed.
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