7 - 48
7.7 Remote Password
7
COMMUNICATION USING BUILT-IN ETHERNET
PORTS OF CPU MODULE
(c) Remote password valid range
The remote password is valid only for access from the Built-in Ethernet port
QCPU for which the parameter settings were made.
When multiple CPU modules are used in a multiple CPU system, set a remote
password for each setting target CPU module respectively.
(d) When remote password mismatch count is set
If the checkbox of "Get an error when remote password mismatch count reaches
the upper limit" is checked on the Remote password detail settings screen in GX
Developer, an error may occur due to entry errors accumulated in a long period of
time by the user.
To prevent such errors, perform the following operations.
• Check the checkbox of "Clear mismatch count when remote password
matches" on the Remote password detail settings screen in GX Developer.
• Clear the accumulated count of remote password mismatches using the
special relay (SM1273).
Figure 7.31 Remote password in multiple CPU system
QnUDE(H)CPU No.1 QnUDE(H)CPU No.2
1)
2)
3)
4)
Remote password is checked in
access 1) and 2),
but not checked in access 3) and 4).
Ethernet
Enable/
Disable
Remote password
check
No remote password
parameter
Remote password
parameter
To Next Page
Loading...
Need help?
General
