Mitsubishi Electric MELSEC iQ-R Series User Manual page 425

Error Error definition and causes
code
D24BH The number of resends specified in the
dedicated instruction is incorrect.
D24CH The network number specification of the
dedicated instruction is incorrect.
D24DH The channel specified in the dedicated
instruction is incorrect.
D24EH The target station setting in the dedicated
instruction is incorrect.
D251H • At execution of a dedicated instruction,
or group specification or all stations
specification of the target station, the
execution type is set with arrival check.
• For the REQ instruction, the specified
request type is incorrect.
D253H A response timeout has occurred when the
dedicated instruction was executed.
D254H A dedicated instruction which the target
station does not support was executed.
Action
• Execute the instruction again after correcting the number of resends at
the request source of the dedicated instruction.
• When the own station, target station, or relay station detected an error,
identify the cause of the error and take action.
• Execute the instruction again after lower the transient transmission usage
frequency.
• Check if the switching hub and the Ethernet cables at the request source
are connected properly.
• Execute the instruction again after correcting the network number at the
request source of the dedicated instruction.
• If the request source is on another network, check if "Routing Settings" of
CPU parameters are set correctly, and take action.
• Set 1 to 2 for the target channel number in the control data when
executing the SEND instruction.
• Set 1 to 32 for the channel number when executing the REMFR/REMTO/
REMFRD/REMTOD instruction.
• Execute the instruction again after correcting the channel number used by
own station in the control data.
• The value set for the control block of the dedicated instruction is out of
range. Execute the instruction again after correcting the value.
• If the error occurs again even after taking the above, please consult your
local Mitsubishi representative.
• Execute the dedicated instruction again after changing the execution type
in the control data to no arrival check.
• For the REQ instruction, execute it again after correcting request type.
• If the error occurs again even after taking the above, please consult your
local Mitsubishi representative.
• Check the network status using the CC-Link IE TSN/CC-Link IE Field
diagnostics of the engineering tool, and take action.
• For IP address specification, it is not possible to target stations beyond a
relay station. Execute the dedicated instruction by specifying the network
number/station number.
• Execute the instruction again after increasing the number of resends at
the request source of the dedicated instruction.
• Execute the instruction again after lower the transient transmission usage
frequency.
• When "Dynamic Routing" in "Application Settings" is set to "Enable",
check the 'Communication path determination status' (Un\G1260544 to
Un\G1260559) and check if communication to the target network number
is possible.
• Execute the dedicated instruction for a target station that supports the
executed dedicated instruction.
• For the RECV instruction, execute it again after correcting the own station
storage channel in the control data.
• For the RECV instruction, check that 'RECV execution request flag CH1'
(SB0030) to 'RECV execution request flag CH8' (SB0037) are on.
• For the SLMPSND instruction, execute it again after checking if the
destination port number set in the control data is the available port
number using the manual of the external device.
• Correct the network number and station number/IP address of the target
station of the dedicated instruction.
• Check if the Ethernet cable is connected properly.
• For the REMFR/REMTO/REMFRD/REMTOD instruction, increase
'REMFR/REMTO instruction resend count' (SW001A) or 'REMFR/REMTO
instruction response wait timer time' (SW001B) at the request source and
try again.
• If the request destination is on another network, check if the CPU module
working as the relay station supports the routing setting, and take action.
• If the error occurs again even after taking the above, please consult your
local Mitsubishi representative.
• Change the target station at the station that executed the SEND
instruction.
• If the error occurs again even after taking the above, please consult your
local Mitsubishi representative.
19 LIST OF ERROR CODES
19.1 Error Codes When a Module Error Occurs
Detailed
information 1
Detailed
information 2

19






423