Communication With Intelligent Device Stations - Mitsubishi Electric L26CPU-BT User Manual

8.1.4

Communication with intelligent device stations

This section explains an overview of the communication between the master and intelligent device stations.
(1) Communication between the master station and intelligent device stations by
cyclic transmission
Handshaking signals with intelligent device stations (positioning complete, positioning start. etc.) are sent or
received using remote input RX and remote output RX.
Numeric data (positioning start number, present feed value, etc.) is sent or received using remote register RWw
and remote register RWr.
Programmable
controller CPU
Network
parameters
Automatic
refresh
parameters
X
Y
W
W
124
Master station
1)
Buffer memory
3)
Remote input
Automatic refresh
4)
Remote output
Automatic refresh
6)
Remote register
Automatic refresh
9)
Remote register
Automatic refresh
Network
parameters
2)
Link scan
RX
5)
Link scan
RY
7)
Link scan
RWw
8)
Link scan
RWr
Intelligent
device station
Remote input
RX
Handshaking signals
such as initial data
processing request and
positioning complete
Remote output
RY
Handshaking signals
such as initial data
processing complete
and positioning start
Remote register
RWw
Numeric data such
as positioning start
number and speed
change value
Remote register
RWr
Numeric data such
as present feed
value and send speed