Mitsubishi Q00JCPU User Manual page 559

7
COMMUNICATION
PORTS OF CPU MODULE
(1) Communication method when a remote password is set
The communication procedure with the Built-in Ethernet port QCPU with a preset
remote password is described below.
(a) Access enable processing (unlock processing)
(b) Access processing
(c) Access disable processing (lock processing)
USING
An external device such as a personal computer performs remote password
unlock processing for the CPU module.
When unlock processing is not performed, an error occurs in the external device
since the CPU module does not accept access.
Access is enabled after the remote password unlock processing is completed
normally.
Remote password lock processing is performed from the external device to
disable subsequent access after the access is completed.
<Accessing the CPU on host station>
(a) Unlock processing
(c) Lock processing
Enable/
Disable
Remote password
check
<Accessing the CPU on another station>
(a) Unlock processing
(c) Lock processing
Enable/
Disable
QnUDE(H)CPU
Remote password
check
Figure 7.28 Remote password operation overview
BUILT-IN ETHERNET
Ethernet
(b) Access
QnUDE(H)CPU
Remote password
parameter
Ethernet
(b) Access
Network, such as CC-Link IE controller network
Remote password
parameter
7.7 Remote Password
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