Mitsubishi Electric MELSEC SW1DNC-CCIEF-B User Manual page 172

Error Error code
code
D247H Dedicated instruction received twice
D248H Incorrect transient data
D249H Target station's CPU type error
(dedicated instruction)
D24AH Arrival monitoring time error
(dedicated instruction)
D24BH Number of resends error (dedicated
instruction)
D24CH Target network No. error (dedicated
instruction)
D24DH Incorrect channel used for the
dedicated instruction
D24EH Dedicated instruction error
D24FH Own station No. undefined
(dedicated instruction)
D250H Flash ROM failure
D251H Arrival confirmation error (dedicated
instruction)
D252H Transmission completion wait
timeout (dedicated instruction)
D253H Response timer timeout (dedicated
instruction)
D254H Unsupported request received
(dedicated instruction)
D255H Target station No. error (dedicated
instruction)
D256H Execution/abnormal end type error
(dedicated instruction)
16 TROUBLESHOOTING
170
16.9 Error Code List
Corrective action
Check the network condition by CC-Link IE Field Network diagnostics, and take action.
Check if the cables and switching hub of the request source are connected properly.
If the request source resides in another network, check if the routing parameters are correctly set, and
take corrective action.
Correct the transient data at the request source, and retry the operation.
If this error persists, please consult your local Mitsubishi representative.
Correct the target station's CPU type at the request source of the dedicated instruction, and retry the
operation.
If the request source resides in another network, check if the routing parameters are correctly set, and
take corrective action.
Correct the arrival monitoring time at the request source of the dedicated instruction, and retry the
operation.
When the own station or target station has detected an error, identify the cause of the error and take
action.
Reduce the frequency of transient transmission and then retry the operation.
When the mode of the master station is "Online (High Speed Mode)", change it to "Online (Normal
Mode)" and retry the operation.
Check if the cables and switching hub of the request source are connected properly.
Correct the number of resends at the request source of the dedicated instruction, and retry the
operation.
When the own station or target station has detected an error, identify the cause of the error and take
action.
Reduce the frequency of transient transmission and then retry the operation.
When the mode of the master station is "Online (High Speed Mode)", change it to "Online (Normal
Mode)" and retry the operation.
Check if the cables and switching hub of the request source are connected properly.
Correct the network number at the request source of the dedicated instruction, and retry the operation.
If the request source resides in another network, check if the routing parameters are correctly set, and
take corrective action.
For the SEND instruction, set 1 or 2 for the target channel No. in the control data.
For the REMFR/REMTO instruction, set any of 1 to 32 for the channel No.
An invalid value is set for the control block of the dedicated instruction. Correct the value, and then retry
the operation.
If this error persists, please consult your local Mitsubishi representative.
Set the station number in "Network Parameter", and retry the operation.
If this error persists, please consult your local Mitsubishi representative.
The flash ROM may be faulty.
Refer to corrective action for hardware error. (Page 175 Hardware error)
Correct the number of resends at the request source of the dedicated instruction, and retry the
operation.
When the own station or target station has detected an error, identify the cause of the error and take
action.
Reduce the frequency of transient transmission and then retry the operation.
When the mode of the master station is "Online (High Speed Mode)", change it to "Online (Normal
Mode)" and retry the operation.
Check if the cables and switching hub of the request source are connected properly.
Check the network condition by CC-Link IE Field Network diagnostics, and take action.
Reduce the frequency of transient transmission and then retry the operation.
When the mode of the master station is "Online (High Speed Mode)", change it to "Online (Normal
Mode)" and retry the operation.
If this error persists, please consult your local Mitsubishi representative.
The dedicated instruction did not end within the transient timeout monitoring time.
Send data from other station may be received, or the specified target station for executing the dedicated
instruction may be failed.
• When executing the RECV instruction, check if a message is sent from another station.
• Check the network condition by CC-Link IE Field Network diagnostics, and take action.
• If this error persists, please consult your local Mitsubishi representative.
Change the target station at the station that sent the SEND instruction.
If this error persists, please consult your local Mitsubishi representative.
Check the target station number, and retry the operation.
If this error persists, please consult your local Mitsubishi representative.
Check the execution/abnormal end type, and retry the operation.
If this error persists, please consult your local Mitsubishi representative.