Troubleshooting/Service 
Procedure #9 
Table 7-13 explains how to troubleshoot an Ethernet Communications failure. 
Table 7-13  Troubleshooting an Ethernet  Communications Failure 
Step  What to do  How to do it 
1 
Check the IP address, Subnet 
Mask address and Gateway 
address settings. 
See the PIE Tool Manual. 
2 
Check if the Ethernet Connection 
is active. 
Looking into the instrument, there should be steady 
green LED.  If this is not present, then the 
instrument is not seeing a valid Ethernet 
connection.  See Section 2.7 for wiring diagrams.  A 
second green LED will blink during actual Ethernet 
transactions. 
3 
Change Ethernet 
Communications board. 
Installation instructions provided with new 
board. 
4 
Change Controller   
 
168  UDC3200 Universal Digital Controller Product Manual  12/04