Mitsubishi Electric MELSEC iQ-R Series User Manual page 197

■Accessible station
The station accessible from the external device when a remote password is set for the CPU module and the station that can
unlock/lock the remote password are limited to those in the same network number.
The following figure shows an example of when the remote password is set for multiple stations in the system.
Ex.
Station 1-1
Remote
password
Station B
CPU module
Engineering tool
Network No.2
Ethernet
Station 2-1
RJ71GN11-EIP
CPU
module
Station C
The password can be unlocked and locked by the following external devices.
• 1-1 station (1): A station only
• 2-2 station (1): C station only
• 3-2 station (1): D station only
The A station accesses the  station after the remote password for 1-1 station (1) is unlocked and access the  station if the
communication line is open.
The B station accesses the  station if the communication line is open.
The C station accesses the  station after the remote password for 2-2 station (1) is unlocked and access the  station if the
communication line is open.
The D station accesses the  station after the remote password for 3-2 station (1) is unlocked and access the  station if the
communication line is open.
: Station accessible from external device after remote password is unlocked
: Station accessible from external device even if remote password is not unlocked
: Station that cannot be accessed from external device
External device Target programmable controller (request source)
(Request
1-1 station CPU
source)
A station 

B station

C station

D station
Station 1-2
Station A
RJ71GN11-EIP
CPU
module
Network No.1
(1) (2)
Remote
password
RJ71GN11-EIP
check
RJ71GN11-EIP
(1) Station 2-2
Remote Remote
password
password
check
CPU module RJ71GN11-EIP
1-2 station CPU 2-1 station CPU
 
 
 
 
(1)
Ethernet
Station 3-2
Remote
password
CPU module
Network No.3
(1) (2) Station 3-1
RJ71GN11-EIP RJ71GN11-EIP
CPU
module
2-2 station CPU 3-1 station CPU
 
 
 
 
(1)
Remote
password
check
RJ71GN11-EIP
Ethernet
(1)
Station D
3-2 station CPU




9 FUNCTIONS
9.5 Security
9
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