Appendix 4.2 Reinitialization Process - Mitsubishi Electric QJ71E71-100 User Manual

Appendix 4.2
The reinitialization process sets the E71 to the status after startup without restarting the programmable controller (or
resetting the CPU module). Perform the reinitialization process using a program.
(1) Purpose of a reinitialization process
The purpose of a reinitialization process is described.
(a) To update address information of a connected device held by the E71
To prevent other devices from illegally accessing the programmable controller using the IP address of the
connected device with which communications are normally performed, the E71 holds the IP address of the
connected device and the corresponding MAC address.
replaced due to a failure, the address information of the connected device held by the E71 must be cleared by
the reinitialization process.
*1 MAC address is unique to a device. No devices share the same MAC address.
(b) To change the IP address of the E71 on the own station
When a system is changed, by only changing the own station IP address set by the programming tool,
communications with the connected device can be resumed.
(c) To change the Ethernet operation setting
By changing the communication conditions in the Ethernet operation setting set using the programming tool,
communications with the connected device can be resumed.
(d) To change the transmission speed and communication mode
By changing the transmission speed and communication mode, communications with the connected device
can be resumed.
Reinitialization process
*1
If a module or the board of the connected device is
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