Omron NJ101-10 Series, Руководство пользователя

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9-4-2
Slave Replacement Methods
The slave to be replaced is first disconnected from the network and then reconnected after you re-
place it.
Use one of the following methods to disconnect and reconnect the slave.
• Method 1: Connecting and Reconnecting Specified Slaves from the Sysmac Studio
• Method 2: Executing the Disconnect EtherCAT Slave and Connect EtherCAT Slave instructions.
Execute the following instructions in the user program. You can use a pushbutton or an HMI to input
the execution condition.
Function Instruction Description
Disconnect EtherCAT Slave EC_DisconnectSlave Temporarily disconnects a slave from the
EtherCAT network for maintenance, such as
replacement of the slave.
Connect EtherCAT Slave EC_ConnectSlave Reconnects a temporarily disconnected
slave to the EtherCAT network after mainte-
nance, such as replacement of the slave.
If the EtherCAT slave to replace has backup parameters, we recommend that you use the Sysmac
Studio to replace the slave. (You can specify backup parameter settings in the EtherCAT slave from
the Sysmac Studio.)
Precautions for Correct Use
For the slaves in the ring topology, you cannot perform the disconnect operation from the Sys-
mac Studio and execute the Disconnect EtherCAT Slave instruction. If you perform the discon-
nect operation from the Sysmac Studio or execute the Disconnect EtherCAT Slave instruction
to the slaves in the ring topology, the slaves end in errors.
If you replace the salve in the ring topology, you need to disconnect the originating slave of the
ring and then disconnect the entire ring topology. When the originating slave of the ring is dis-
connected, the EtherCAT master stops process data communications with slaves in the ring
topology and slaves that are connected to the drop line from the ring.
Additional Information
For slaves that are disabled with the EC_ChangeEnableSetting (Enable/Disable EtherCAT
Slave) instruction or EtherCAT Slave Enable/Disable Settings, you cannot disconnect and re-
connect them from the Sysmac Studio. If you execute the Disconnect EtherCAT Slave and Con-
nect EtherCAT Slave instructions, they end in errors.
9 Troubleshooting
9-27
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
9-4 Replacing Slaves during Communications
9
9-4-2
Slave Replacement Methods