Number Of Send Points Extension - Mitsubishi Electric MELSEC iQ-R Series User Manual

Number of send points extension

This function is used to increases the number of send points (a maximum of 2000 bytes per station) to a maximum of 8000
bytes by mounting multiple RJ71LP21-25s with the same network number to one CPU module.
Ex.
A maximum of 4000 bytes can be sent by installing the control station (station No.1) and normal station (station No.2) at
network No.1 in one CPU module.
CPU module
B
(2)
(1)
(3)
(1)
(4)
(5)
(1) 2000 bytes maximum
(2) Network No.1, control station (station No.1)
(3) Network No.1, normal station (station No.2)
(4) Network No.1, normal station (station No.3)
(5) Network No.1, normal station (station No.4)
Precautions
Pay attention to the following points when installing multiple RJ71LP21-25s with the same network number on one CPU
module.
• Multiple network modules cannot be set on the same station number.
• Multiple stations cannot be set as a control station.
• Changing the setting of "Link Refresh Setting" under "Basic Settings" is required.
• For the function of specifying the target RJ71LP21-25 by a network number, such as the link direct device or the dedicated
instruction, the smallest slot number on the base unit will be the target.
1 FUNCTIONS
46
1.4 Application Function
(2) (3)
LB LB
(2) (2)
(3) (3)
(4)
(4)
(5) (5)