Redundant System Settings - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Redundant System Settings

Set when using an Ethernet-equipped module in a redundant system.
Item
Own Node (System A) IP Address
System B IP Address
Own Node (System A) Station Number
System B Station Number
Use of Control System IP Address
Control System IP Address
Own Node (System A) Module Operation
Mode
System B Module Operation Mode
*2*3
Port Group Setting
System Switching Request Issuing at
*2
Disconnection Detection
Disconnection Detection Monitoring Time
System Switching Request Issue at
*2
Communication Error
*2
User Connection
2 PARAMETER SETTINGS
276
2.3 Application Settings
Description
The IP address set in "Own Node Settings" under "Basic Settings" is
displayed.
Not displayed when it has not been set.
Set the IP address of system B.
Ensure that this address has the same class and subnet address as
"Own Node (System A) IP Address".
Set the IP address class within the range of classes A, B and C.
Page 277 System B IP Address
The station number set in "Own Node Settings" under "Basic Settings"
is displayed.
Not displayed when it has not been set.
*2
Set the system B station number.
Set when the station number is set in "Own Node Settings" under
"Basic Settings".
*3
Set whether to use the control system IP address or not.
• When "Use" is selected, set the control system IP address. When the
control system IP address is used, access using the control IP
address is possible even if system switching occurs.
• When "Not Use" is selected, access is made using the own node
(system A) or system B IP address.
When the RJ71EN71 is used, pay attention to the following.
• When using port group settings, the setting for "Use of Control
System IP Address" should be the same for port 1 and port 2.
*3
Set the control system IP address.
Set so that the IP address has the same class and subnet address as
the IP addresses used in the system. Consult with the network
manager for the IP address setting.
Set the IP address not to overlap the one used in the system.
Set the IP address class within the range of classes A, B and C.
Set the same control system IP address for system A P1 and system B
P1, or for system A P2 and system B P2.
The module operation mode set for "Module Operation Mode" under
"Application Settings" is displayed.
*2
Set the module operation mode of system B.
For details on the module operation mode, refer to the following.
Page 275 Module Operation Mode
Set the port group.
Set the same value for port 1 and port 2.
If "No Setting" is selected, when a system switching error occurs on
either port, performs system switching.
Set whether to issue a system switching request when a cable
disconnection is detected.
*2
Set the time between cable disconnection detection after
communication starts normally and issuance of a system switching
request to the control system CPU module.
Set whether to issue a system switching request when a
communication error occurs.
Set the connection for issuance of a system switching request when a
communication error occurs, from the connections set in "External
Device Configuration" under "Basic Settings".
By setting the comment for the connection device in "External Device
Configuration" under "Basic Settings", the connection can be easily
identified. ( Page 244 External Device Configuration)
Setting range

• Blank
• 0.0.0.1 to 223.255.255.254
(Default: Blank)

1 to 120
(Default: 2)
• Not Use
• Use
(Default: Not Use)
• Blank
• 0.0.0.1 to 223.255.255.254
(Default: Blank)

• Online
• Offline
• Module Communication Test
(Default: Online)
• No Setting
• Switch Systems When a System
Switching Error Occurs in Port 1
• Switch Systems When a System
Switching Error Occurs in Port 2
• Switch Systems When a System
Switching Error Occurs in Both of
Port 1 and Port 2
(Default: No Setting)
• Enable
• Disable
(Default: Enable)
Unit [s]: 0.0 to 30.0
*1
Unit [ms]: 0 to 30000
(Default: 2s)
• Enable
• Disable
(Default: Disable)
• Not to Issue
• Issue
(Default: Not to Issue)