Mitsubishi FX3U Series User Manual page 112

FX Series Programmable Controllers
3U
User's Manual - MODBUS Serial Communication Edition
MODBUS
Error
Code
Invalid Device Address
0210 The selected MODBUS Device Address or
the Device Address + Device Count exceeds
the supported range of this slave
Communication Timeout
0211
Timeout occurred after the set number of
retries failed
Exception Response Error
Slave answers by exception response
(See Exception Code List at the end of this
0212 Section)
Details:
H-Byte: Abnormal function code
L-Byte: Exception code
Slave Node Address Mismatch
The Slave Node address of the response
does not match the Slave Node address of
0213 the request
Details:
H-Byte: requested Slave Node address
L-Byte: received Slave Node address
Function Code Mismatch
The function code of the response does not
match the function code of the request
0214
Details:
H-Byte: requested function code
L-Byte: received function code
Illegal Broadcast Command
Slave
command unsupported by broadcast function
Details:
0215
H-Byte 0
L-Byte Command Code
108
Error Name and Details
receives broadcast request
Non-Diagnosis Diagnosis
Commands Commands
Command Code
(08H)
Sub-Command
Code
Master
Related Devices:(M & D)
/ Slave
Slave See above
Master See above
Master See above
Master See above
Master See above
for
Slave See above
12 Troubleshooting
12.6 MODBUS Error Code List
Corrective Action
Verify that the
MODBUS Device
Address Allocation of
the Slave is set
correctly.
Ensure master data is
in a valid range for a
selected command.
Confirm that the
master is accessing
valid device ranges.
Verify that the Slave
Node Address and
communication
parameters are setup
correctly.
Verify that the
command and
command parameters
used is within the
Master and Slave
specifications.
See Corrective
Actions for Error
Code 207.
See Corrective
Actions for Error
Code 207.
Verify that the
command is within
the Slave
Specifications and
that broadcasting is
applicable
(Chapter 7).