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MELSEC-Q
8 TROUBLESHOOTING
Table 8.1 Error code list (continued)
Error No. Description of error Corrective measure
F115 Improper function code
Check for faulty cables, faulty hardware, incorrect wiring, duplication of station
numbers, and duplication of control stations.
F116 Delayed online test processing
F117 Send failure
Check for faulty cables, hardware failure, noise, incorrect wiring, and absence
of terminating resistors (when a bus is used).
F118 Send failure (baton regeneration)
Wait until SB0047 (baton pass status)/SB0049 (data link status) is turned off
(normal).
F11A
Send failure
(multiplex transmission stopped)
Wait for a while and execute again.
F11B Being disconnected
Review the parameter and switch settings (to see if there is a parameter error
and the corresponding station is the control station or remote master station
and properly set).
Check for faulty cables, faulty hardware, noise, incorrect wiring, and duplication
of station numbers, control stations, and remote master stations.
F11C System error
The hardware of the network module is faulty.
Please consult your local Mitsubishi representative.
F11F Initial status (no baton addressed to host)
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).
F120 Destination station specification error
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.
F122 Send failure (coaxial/twisted bus system)
Check for 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 specified 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)
The hardware of the CPU or network module is faulty.
Please consult your local Mitsubishi representative.
F702
Send-target station number error
(station No. 65 or higher number specified)
F703 Destination group number error Review the destination group number.
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