Problem and Resolution
Data communication failure
1.
Make sure USB interface connection is correct.
2.
Make sure RS-485/RS-422 output interface
connection is correct.
3.
Make sure power supply is OK.
4.
Make sure the wire terminal connection is OK.
5.
Make sure the pilot lamp flashes when receiving.
6.
Make sure the pilot lamp flashes when sending.
Data missing or incorrect
Check to see whether if the data rate and format at both
ends of the communication equipment are consistent.