Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 425

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