Appendix
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?

Cable connection exsample for default setting.
(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.