Mitsubishi Electric MELSEC iQ-R Series User Manual page 23

• Output from the master station
 The device of the CPU module turns on.
 The device status of the CPU module is stored in the link devices (RY, RWw) of the master station by link refresh.
 The status of the link devices (RY, RWw) of the master station is stored in the link devices (RY, RWw) of each remote station by cyclic data transfer
processing.
 The status of the link devices (RY, RWw) of the remote station is output to the external device.
• Input from the remote station
 The status of the external device is stored in the link devices (RX, RWr) of the remote station.
 The status of the link devices (RX, RWr) of the remote station is stored in the link devices (RX, RWr) of the master station by cyclic data transfer processing.
 The status of the link devices (RX, RWr) of the master station is stored in the devices of the CPU module by link refresh.
■ Multicast mode
• The master station and remote station send data on the line in multicast mode in each send range.
• The master station receives all data, but the remote station discards the data of another remote station. Therefore,
communication at each station is performed in the same manner as unicast mode. ( Page 20 Unicast mode)
Master station and remote stations (motion control stations)
■ Unicast mode
Devices of a motion control station (RX, RY, RWw, and RWr) are assigned to the motion control area (which cannot be
referenced from the CPU module) instead of the link device area of the Motion module (which can be referenced from the
CPU module). 1:1 communications between the Motion module and motion control station. For the remote station of the
motion control station, the motion control output status is not outputted, and the input status is not stored in the link device
(RX, RWr) of the master station.
• When using the PLCopen Motion control FB mode
The Motion module operates the cyclic data in the motion control area with the motion calculation or slave label. The slave
label can be operated from the program in the Motion module. For the method to create a slave label, refer to "Connectable
device to CC-Link IE TSN" in the following manual.
MELSEC iQ-R Motion Module User's Manual (Application)
Class B
No. 0
Operation processing
Label
read/write
Slave
User
program in
the Motion
module
Motion
calculation
Operation
instruction/
status read
No. 0, No. 1, No. 2: Station No. 0 (master station), station No. 1, station No. 2
No. 1, No. 2: Send range: to station No. 1, send range: to station No. 2
No. 1, No. 2: Send range: from station No. 1, send range: from station No. 2
: Data refresh by operation cycle
Motion control area
→No. 1 RY
label
→No. 1 RWw
→No. 2 RWw
(RPDO)
No. 1 RX
No. 1 RWr
No. 2 RWr
(TPDO)
Class B
No. 1
No. 1 RY
No. 1 RWw
←No. 1 RX
←No. 1 RWr
Class B
No. 2
No. 2 RWw
(RPDO)
←No. 2 RWr
(TPDO)
1 FUNCTIONS
1.1 Cyclic Transmission
1
21