Buffer Memory - Mitsubishi A1SJ61BT11 User Manual

3 SPECIFICATION
Master station
Remote input (RX)
Remote output (RY)
POINT
(1) Yn0 is set (on) before the data link start up.
(2) Yn0 is turned off when the PC CPU is in the STOP status.
(15) Module ready: XnF
Indicates if the module is ready for operation.
Used as an interlock signal when a sequence program is used to make access to
the master/local module.
(a) Turns on automatically when the module becomes ready for operation.
(b) Turns off when one of the following conditions occur:
There is an error in the module switch settings.
The module reset request signal (Yn4) is turned on.
The module error signal (Xn0) is turned on.
If the module is inoperative (XnF is OFF), do not execute the FROM/TO
instruction for the module.
Module ready
(XnF)
Module error
(Xn0)
Module reset request
(Yn4)
(16) Refresh command: Yn0
Indicates if the content of remote output RY (address 160
memory is effective or not. Same meaning for local stations.
For remote input RX and remote register RWr/RWw except remote output RY,
refresh is continued independently of this signal.
OFF : Not effective (Sends all-off data.)
ON : Effective (Sends data in "remote output (address 160

buffer memory.)

Remote I/O station
Input
Output
Power supply ON
Remote device station
Remote input (RX)
Remote output (RY)
3 - 16
MELSEC-A
to 1DF ) in the buffer
H H
to 1DF )" in the
H H
Local station
Remote output (RY)
Remote input (RX)