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Chapter 5 - MODBUS-RTU Communication
87
5.8 Troubleshooting
Refer to this chapter when a trouble is occurred.
The drive program
(Drive View)
operates?
Is the computer port
set correctely?
Yes
Yes
Yes
Initiate drive
program.
No
Set the correct
comm port.
No
Indication LED
(TXD, RXD) does not blink.
The Baud rate
(I/O-47) matches
with computer?
Yes
Set I/O-47
same as the
computer Baud
rate.
No
ROM version
(FU2-79) is over
1.09?
Yes
Change the
ROM.
No