Filter
Top Products
8 - 36 8 - 36
MELSEC-Q
8 TROUBLESHOOTING
Table 8.1 Error code list (Continued)
Error code Description Corrective action
F11F Initial status (no baton addressed to host)
Check for the operation status of the control/sub-control station, faulty cables,
incorrect cable wiring, and absence of terminating resistor (in the case of the
bus). In addition, check whether the same station number has been set for two
or more stations or whether two or more control stations or remote master
stations exist.
Confirm whether network modules in MESLECNET/H and MELSECNET/10
modes exist together (confirm the control station type).
F120 Destination station specification error
Check for faulty cables, faulty hardware, incorrect wiring, and absence of
terminating resistor (in the case of the bus). In addition, check whether the
same station number has been set for two or more stations or whether two or
more control stations or remote master stations exist.
F122 Send failure (coaxial bus system)
Check for coaxial cable connection, proper connector connection, connection of
terminating resistor, or faulty cables.
F221 System error
The hardware of the network module is faulty.
Please consult your local Mitsubishi representative.
F222
No free area in the receive buffer
(buffer-full error)
Retry after a little while.
If the error reoccurs as a result of a retry, review the number of transient
communication times and communication interval of the entire system.
Turn off the power supply to the entire system, and turn it on again.
F224 Receive data size error
The hardware of the module on the transient transmission source station is
faulty.
Please consult your local Mitsubishi representative.
F225 Logical channel number error
The hardware of the module on the transient transmission source station is
faulty.
Please consult your local Mitsubishi representative.
F226 Channel number error
Check if the logical channel number designated in the execution source of the
SEND instruction is set in the target network module.
Alternatively, specify the logical channel number set in the target network
module.
F228 SEND instruction target station error
Review the target network number and target station No. in the control data at
the execution source of the SEND instruction.
F301 System error
The hardware of the network module is faulty.
Please consult your local Mitsubishi representative.
F701
Send-target station number error
(station No. 0 specified)
Review the send-target station number.
F702
Send-target station number error
(station No. 65 or higher number specified)
F703 Destination group number error Review the destination group number.
F706 Received data size error
The cable is faulty, or the hardware of the network module is faulty.
If a communication error has occurred, review the cable.
If not, the hardware of the network module is faulty.
Please consult your local Mitsubishi representative.
F707 Number of relay stations invalid
Set stations to which data can be sent.
Review the system.
Review the routing parameters.
F708 Receiving group number error Review the group number of the target station.
F709 Receiving network number error
Review the network No. of network parameter for the host station and a target
station.
If the parameter is not set, the network No. is preset to 1 (default); so check the
network No. of other stations.
F70A System error
The cable is faulty, or the hardware of the network module is faulty.
If a communication error has occurred, review the cable.
If not, the hardware of the network module is faulty.
Please consult your local Mitsubishi representative.