Specifications

4 - 18
4.8 Mounting and Dismounting the Module
This section explains the procedures when mounting/dismounting the Ethernet
module.
(1) Operation procedure when replacing the Ethernet module
(Step 1) Turn off the power supply to the Ethernet module installed station.
(Step 2) Remove the network cable and the Ethernet module.
(Step 3) Install and start up the new Ethernet module according to "4.3 Settings
and Procedures Prior to Starting the Operation".
(Step 4) Reset the external device.
POINT
When the Ethernet module is replaced, reset the external device as well.
(If the external device retains the Ethernet address of the communicating module, it
may be impossible to continue the communication because a module is replaced
and the Ethernet address changes.)
In the same way, when the external device (personal computer, etc.) is replaced,
restart the Ethernet module.
(2) Operation procedure when replacing the QCPU
(Step 1) Read the parameters for the Ethernet module from the PLC CPU and
save them using the GX Developer. (*1)
(Step 2) Replace the QCPU. (Refer to the applicable QCPU User's Manual.)
(Step 3) Load the parameters for the Ethernet module that have been saved in
GX Developer to the new QCPU.
(Step 4) Reset the external device.
*1 It is recommended to record and save parameters not only when the CPU is
replaced but also when parameters for the Ethernet module are created and
modified.