Instruction manual

8. TROUBLESHOOTING
IMR01H02-E3
80
Continued from the previous page.
Problem Probable cause Solution
No response Error in the data format Reexamine the communication program
Transmission line is not set to the receive
state after data send (for RS-485)
EOT return The specified identifier is invalid Confirm the identifier is correct or that
with the correct function is specified.
Otherwise correct it
Error in the data format Reexamine the communication program
NAK return Error occurs on the line (parity bit error,
framing error, etc.)
Confirm the cause of error, and solve the
problem appropriately. (Confirm the
transmitting data, and resend data)
BCC error
The data exceeds the setting range Confirm the setting range and transmit
correct data
The specified identifier is invalid Confirm the identifier is correct or that
with the correct function is specified.
Otherwise correct it