Communication Between The Master Station And Remote I/O Station - Mitsubishi A1SJ61BT11 User Manual

4 FUNCTIONS

4.2 Communication Between the Master Station and Remote I/O Station

PC CPU
SET Yn0
SET Yn8
FROM
TO
POINT
The data link can be started from the parameters written in the "parameter information area" in
the buffer memory. (Refer to Chapter 6.)
The overview of the communication between the master station and remote I/O station
is described.
1
2
4
5
[Data link startup]
Turn on the refresh specification (Yn0) and make the remote output (RY) data valid.
1
When the refresh specification (Yn0) is off, all the remote output (RY) data is treated
as 0 (off).
Turn on the data link startup by the E
2
link.
However, the parameters must be set in E
When the data link is started normally, the host data link status (Xn1) turns on.
Master station
Refresh specification
Data link startup
2
by E PROM
parameters
Buffer memory
Remote input
(RX)
Remote output
(RY)
2
PROM parameters (Yn8), and start the data
2
4 - 2
Remote I/O station
3
Link scan Input
6
Link scan Output
PROM beforehand.
MELSEC-A