Mitsubishi QJ71LP21 Reference Manual page 242

8 TROUBLESHOOTING
Error No. Description of error
F11F Initial status (no baton addressed to host)
F120 Destination station specification error
F122 Send failure (coaxial bus system)
F221 System error
No free area in the receive buffer
F222
(buffer-full error)
F224 Receive data size error
F225 Logical channel number error
F226 Channel number error
F228 SEND instruction target station error
F301 System error
Send-target station number error
F701
(station No. 0 specified)
Send-target station number error
F702
(station No. 65 or higher number specified)
F703 Destination group number error
F706 Received data size error
F707 Number of relay stations invalid
F708 Receiving group number error
F709 Receiving network number error
F70A System error
F70B Response wait timeout
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Table 8.1 Error code list (Continued)
Check for the operation status of the control/sub-control station, faulty cables,
incorrect cable wiring, absence of terminating resistor (in the case of the bus),
and duplication of station numbers, control stations, and remote master
stations.
Confirm whether network modules in MESLECNET/H and MELSECNET/10
modes exist together (confirm the control station type).
Check for faulty cables, faulty hardware, incorrect wiring, absence of
terminating resistor (in the case of the bus), and duplication of station numbers,
control stations, and remote master stations.
Check for coaxial cable connection, proper connector connection, connection of
terminating resistor, or faulty cables.
The hardware of the network module is faulty.
Contact your local Mitsubishi representative.
Retry after a little while.
If the error recurs 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.
The hardware of the module on the transient transmission source station is
faulty.
Contact your local Mitsubishi representative.
The hardware of the module on the transient transmission source station is
faulty.
Contact your local Mitsubishi representative.
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.
Review the target network number and target station No. in the control data at
the execution source of the SEND instruction.
The hardware of the network module is faulty.
Contact your local Mitsubishi representative.
The hardware of the CPU or network module is faulty.
Contact your local Mitsubishi representative.
Review the destination group number.
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.
Contact your local Mitsubishi representative.
Set stations to which data can be sent.
Review the system.
Review the routing parameters.
Review the group number of the target station.
Review the network No. parameter.
If the parameter is not set, the network No. is preset to 1 (default); so check the
network No. of other stations.
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.
Contact your local Mitsubishi representative.
Wait until SB0047 (baton pass status) and SB0049 (data link status) are
recovered.
Corrective measure
MELSEC-Q
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