KEYENCE N-400 - Manual (Page 59)

Chapter 3 N-400 Setup Procedure
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4. If the settings of the N-400 were successfully read, the following message
appears.
If the host computer failed to read the data, the following message appears.
If this message is displayed, check the following points:
• Check that [COM PORT] is set to the values listed in step 1. when the N-
400 displays “S0 ( 50 ).”
• Check that the power to the N-400 is ON.
• Check that the RS-232C cable pin assignment of the N-400 is the same as
that of the host computer.
5. After the settings are read, press the N-400 test switch once to reset the “S0
( 50 )” condition. (If the N-400 does not display “S0 ( 50 )”, you do not need to
press the test switch. )
When the N-400 displays “00”, the reading procedure is completed.