Transmitting Data At The Device And Status Change; Outline - Mitsubishi MELSEC AJ65BT-R2 User Manual

7 USING FRAMES WHEN EXCHANGING DATA

7.4 Transmitting data at the device and status change

7.4.1 Outline

Master station
Buffer memory
~
RXF
~
RX7FF
~
RYF
~
RY7FF
RW0
RWFF
Remote module
With this function, the R2 monitors the device and status according to the details
preset by the user. When the data transmission command (data transmission timing) is
detected, the contents of the user-designated transmission table are transmission to
the external device. (Monitor transmission function)
When the user transmits data with this function, the R2 process can be randomly
designated by the user.
1) Device of master station or status of master station and programmable controller
CPU monitored by the R2 to detect the data transmission timing
2) Conditions for establishing data transmission timing (Refer to section 7.4.2)
3) Monitor interval time for R2 to monitor device or status used as data
transmission timing
By using this function, the programmable controller CPU does not need to be aware of
the data transmission timing.
RX0
1) Setting for monitor
transmission
RX7F0
RY0
1) Setting for
RY7F0
transmission table
2) Monitor of RX/RY/RW, etc.
ON
Generation of
transmission trigger
1) Designate the monitor transmission data in the monitor interval time
designation ( R 2 70
designation 1 to 64 ( R 2 78
Designate the No. of the registered frame to be transmitted (the transmission
area can also be designated) in the transmission table designation ( R 2 122
to 185 ).
H
2) R2 monitors the device or status on CC-Link.
3) When the transmission trigger is detected, the R2 follows the details of the
transmission table designated by the user, and transmits the contents of the
transmission table to the external device.
R2
Buffer memory
specific
application area
Transmission
table
Remote module
), No. of monitor designation ( R 2 71
H
to F7 ) areas.
H H
7 - 13
MELSEC-A
Transmission table
RS-232-C
3) Transmit data according
to details designated in
transmission table
), and monitor
H
External device
Recep-
tion
H