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11.6 Troubleshooting
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11.6 Troubleshooting
11.6.1 Confirmation of connection with the hub unit
1) Are the hub unit and the CNC connected with each other via an STP cable?
Is the STP cable connected correctly?
In general, a straight cable is used to make a connection between a hub
unit and communication unit.
2) Are the hub unit and cable grounded?
3) Is the power to the hub unit turned on?
4) Is the LED (LED for LINK) of the connected hub unit turned on? (Some
hub units do not have an LED for LINK.)
The LED is not turned on when the hub unit is not connected to the CNC
or when the power to the CNC is not turned on.
5) Is the LIL LED of the fast Ethernet board turned on at all times? The LED
is not turned on when the board is not connected to the hub unit or when
the power to the hub unit is not turned on.
The PCMCIA Ethernet card is dedicated to 10BASE–T. Is a hub unit
dedicated to 10BASE–T used when the PCMCIA Ethernet card is used?
6) Is the LINK LED turned on when the embedded Ethernet port is used?
The LED is not turned on when the port is not connected to the hub unit
or when the power to the hub unit is not turned on.
11.6.2 Confirmation of each parameter setting
(1) Confirmation of settings on the CNC side
1) Is an MAC address displayed?
An MAC address can be checked on the parameter setting screen.
2) Is the correct IP address set?
Ensure that the IP address for each unit is unique.
3) Is the correct subnet mask set?
The setting must match that of the communication destination unit.
4) When communications via a router are performed, is the IP
address of the router set correctly?
(2) Confirmation of settings on the personal computer side
1) Is the correct IP address set?
Ensure that the IP address for each unit is unique.
2) Is the correct subnet mask set?
The setting must match that of the communication destination unit.
3) When communications via a router are performed, is the IP
address of the router set correctly?
(Communications beyond the router cannot be performed with the
DNC1/Ethernet function.)