
A.TROUBLESHOOTING APPENDIX B-63644EN/02
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A.3 CHECKING COMMUNICATION
This section describes how to check the communication status between
a CNC and the other communicating partner (personal computer). If
communication with the CNC sometimes fails or is not possible, first
make sure that the communication path is normal by the following
procedure. The "ping" command is used to check communication.
In the following example, a personal computer running the
WindowsNT4.0 is used.
• Checking the communication path
Open the DOS window, and enter 'ping "IP address of CNC"'. If a
response is returned from the CNC, the Fast Ethernet board is
connected to the CNC.
1) When a response is returned (normal connection)
2) When a response is not returned (abnormal connection)
When a response is not returned, probable causes are either
the hardware connection or a software setting, or both.
Check the hardware connections and software settings again.