AppendixAppendix

Appendix 1 Troubleshooting the RS-232C Faults 


Check the items in the following table in the event of operating 
problems with the RS-232C interface.

(1)The RS-232C does not operate at all. 

  -1.Is the cable properly connected?
  >> Refer to "Interface" on the instruction manual.
  -2.Is the setting of the RS-232C correct?
  >> Refer to "RS-232C Setting" on the instruction manual.
  -3.Are all the devices that are connected powered on?


(2)An attempt to read data using the CALL RECEIVE statement causes the RS-232C 
bus to hang. 

  -1.Each and every CALL RECEIVE statement must be 
  preceded by a query.
  -2.Is the query transmitted incorrect?


(3)Although a command was transmitted,the unit did not operate. 

  -1.Use the "*ESR?" query to check the standard event status
  register for anomalies.
  >>See CHAPTER 1 , "1.2 The Status Byte and the Event Registers." 


(4)Even though a number of queries were sent, only one response was received. 

  -1.Has an error occurred?
  -2.The response should be read immediately after each query.
  >> To read several responses in one operation, the corresponding
  queries must be combined into a single line using the message
  separator.


(5)An overrun error or a framing error occurs. 

  -1.Is the transfer rate too high?
  >> Reduce the transfer rate.





Appendix 2 Troubleshooting the 10BASE-T Faults 


Check the items in the following table in the event of operating 
problems with the 10BASE-T interface.

(1)The 10BASE-T LAN does not operate at all.

  -1.Is the cable properly connected?
  >> Refer to "Interface" on the instruction manual.
  -2.Is the setting of the 10BASE-T LAN
  >> Refer to "LAN Setting" on the instruction manual.
  -3.Are all the devices that are connected powered on?


(2)The communication is not proper with 10BASE-T LAN

  -1.Set the delimiter properly.
  >> Refer to "Delimiter" on the instruction manual.


(3)Although a command was transmitted,the unit did not operate.

  -1.Use the "*ESR?" query to check the standard event status
  register for anomalies.
  >>See CHAPTER 1 , "1.2 The Status Byte and the Event Registers."


(4)Even though a number of queries were sent, only one response was received.

  -1.Has an error occurred?
  -2.The response should be read immediately after each query.
  >> To read several responses in one operation, the corresponding
  queries must be combined into a single line using the message
  separator.
