Mitsubishi Electric MELSEC-L Series - Page 187

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CHAPTER 14 OTHER FUNCTIONS
14
14.4 Remote Password 14.4.3 Remote password check procedure
Ex.
When a remote password and the remote password check have been set in multiple LCPU stations
The unlock/lock process can be performed for the following connected devices.
• 1) of the station 1-1: By the station A only
• 1) of the station 2-2: By the station C only
• 1) of the station 3-2: By the station D only
*1 The station A can access the stations marked with ● after the remote password unlock process is completed for 1) of the
station 1-1, and can access the stations marked with  when the communication lines are open. The station B can
access the stations marked with  when the communication lines are open. The station C can access the stations
marked with ● after the remote password unlock process is completed for 1) of the station 2-2, and can access the
stations marked with  when the communication lines are open. The station D can access the stations marked with ●
after the remote password unlock process is completed for 1) of the station 3-2, and can access the stations marked with
 when the communication lines are open.
To disable access from the connected devices to other stations through CC-Link IE Controller Network, CC-Link IE Field
Network, MELSECNET/H, and MELSECNET/10 relay communication functions, select "MELSOFT Application
Transmission port (UDP/IP), Dedicated Instruction, CC-Link IE, NET10(H) Relay Transmission Port" in the remote password
setting of the relay station or a station to be accessed.
●: Stations that can be accessed from the connected device after the remote password unlock process
: Stations that can be accessed from the connected device without performing the remote password
unlock process
: Stations that cannot be accessed from the connected device
Connected device
*1
(request source)
Target programmable controller station (request destination)
Station 1-1
LCPU
Station 1-2
LCPU
Station 2-1
LCPU
Station 2-2
LCPU
Station 3-1
LCPU
Station 3-2
LCPU
Station A ●  ● 
Station B 
Station C ●●
Station D ●
Ethernet
Ethernet
E71
Station C
Station D
E71
Station A
Remote
password
Remote
password
check
E71
LCPU E71
Ethernet
LCPU E71
LCPU E71
1)
Network No.1
Network No.2
Station 1-2
1)
Station 1-1
2)
1)
Station 2-1
1) 2) 1)
Station 3-1
1)
Station 3-2
Programming tool
LCPU E71
Remote
password
Remote
password
check
LCPU
Network No.3
E71
Remote
password
Remote
password
check
QCPU
Station B
Station 2-2