Buffer Memory; Configuration Of The Buffer Memory - Mitsubishi MELSEC-A Series User Manual

4. FUNCTIONS
MELSEGA
(9)
Communication fault area clear request (YO2)
(a) This signal
i s
turned ON to completely clear the communication fault
(b) It is turned OFF by the sequence program when the communication
(c) This signal is used in accordance with the sequence shown below.
area of the buffer memory.
fault area clear completion signal has come ON.
(1 0 )
Communication fault area type selection (Y03)
(a) Used to select the type of communication fautl area (ring type
or
fixed type). (See Section 4.4.2 (4))
(b) To select the ring type, this signal is set "OFF, and to select the
fixed type, it is set "ON".
(c) This signal becomes effective when the module is started up and
when the communication fault area clear request signal (Y02) comes
ON.
4.4
Buffer
Memory
4.4.1
Configuration o f
the
buffer
memoly
The configuration of the buffer memory
PC CPU is shown below.
used for data communication with the
Address (decimaVhexadecimal) Units: words
38F
I
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