Accessible Station - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

■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 B
Engineering tool
Ethernet
Station 2-1
CPU
module
Station C
*1 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
: 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 Target programmable controller (request source)
*2
device
1-1 station CPU
(Request
source)

A station

B station

C station

D station
*2 The A station can access the  station after the remote password for 1-1 station (1) is unlocked. The  station can be accessed if the
communication line is open.
The B station can access the  station if the communication line is open.
The C station can access the  station after the remote password for 2-2 station (1) is unlocked. The  station can be accessed if the
communication line is open.
The D station can access the  station after the remote password for 3-2 station (1) is unlocked. The  station can be accessed if the
communication line is open.
1 FUNCTIONS
178
1.13 Security Function
Station A
Network No.1
Station 1-1 (1)
Remote Remote
password password
check
CPU module RJ71EN71
Network No.2
(1) Station 2-2
Remote
password
RJ71EN71
CPU module
1-2 station CPU




Station 1-2 (1)
CPU
RJ71EN71
module
Ethernet
(2)
RJ71EN71
Network No.3
(1) (2)
Remote
password
check
RJ71EN71 RJ71EN71
2-1 station CPU 2-2 station CPU
 
 
 
 
Station 3-2 (1)
Remote Remote
password password
check
CPU module RJ71EN71
Station 3-1 (1)
CPU
RJ71EN71
module
3-1 station CPU




Ethernet
Station D
3-2 station CPU



