Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual page 402

Error Error name
code
38E6H No vision program
38E7H Read value error
38E8H Execute time-out
38E9H Trigger response time-out
38EAH Offline error
38EBH Control authority error
38ECH Vision system number
error
38EDH Double start error
38EEH Vision program load
incomplete error
38EFH Native mode command
send error
38F0H Native command receive
error
38F1H Cell/tag name error
38F2H Received data conversion
error
38F3H Transfer data error
3901H EI execution error
3902H DI execution error
APPENDICES
400
Appendix 1 Error Codes
Error details and cause
The specified vision program (job) does not exist in the
vision system.
The data of read value cell is not an integer value.
Execution of the vision system dedicated function does
not finish within the specified time.
The response to the image pickup is not returned within
the specified time.
The vision system is in the "Offline" status.
User authorities to control the vision system are not
enough.
The Ethernet communication line setting corresponding to
the specified vision system number is not set.
The vision system dedicated function is already being
executed for the same vision system.
Trigger is issued before the vision program is loaded.
Send command string specified length in (S2) of the
MVCOM instruction is outside the range of 1 to 191 bytes.
The data length received by the MVCOM instruction
exceeds 256 bytes. Or the storage device space specified
in (D) is insufficient.
• The string length of cell/tag name specified in (S2) of
the MVIN/MVOUT instruction is outside the range of 1
to 32 bytes.
• The cell/tag specified in (S2) of the MVIN/MVOUT
instruction does not exist.
• The data type of the cell/tag specified in (S2) of the
MVOUT instruction and the transfer data type/range
specified in (S3) do not match.
• Data received by the MVIN instruction cannot be
recognized as numeric data.
• At the BIN conversion mode of the MVCOM instruction,
received data cannot be recognized as numeric data.
The transferred data specified by the MVOUT instruction
(S3) is incorrect.
Event task enable was executed at except for the normal
task.
Event task disable was executed except for the normal
task.
Corrective action
For the vision program name of the vision program
operation setting, specify the job name existing in the
vision system.
Check that the cell/tag contents specified in the read value
cell of the vision program operation setting are integer. To
read the floating-point type data, correct the program to
use the TCP/IP protocol or the MVIN instruction.
Review the time-out period specified by the vision system
dedicated function and correct the program.
• Review the time-out period specified by the vision
system dedicated function and correct the program.
• Check if there is an execution error of job in the vision

system side by In-Sight Explorer and correct the job.
Set the vision system in "Online" status by In-Sight
Explorer.
For the user name which can be specified by the Ethernet
communication line setting, specify the user whose
access level is "Full access" or "Protect" in the user list

setting of In-Sight Explorer. Also, for "Protect", "Online/
Offline switching available" needs to be valid.
Correct the program to use the vision system number
which has the Ethernet communication line setting.
Correct the program to execute the following vision
system dedicated function after confirming the status
storage device of the vision system not in "In execution".
Correct the program to issue a trigger after confirming the
status storage device of the vision program has become
"1".
Correct the program so that the send command string
length specified by (S2) is 1 to 191 bytes.
• Do not use the native mode command where the data
length of the result exceeds 256 bytes.
• When the data length of the result is within 256 bytes,
correct the device No. of (D).
• Correct the program so that the length of cell/tag name
specified by (S2) is 1 to 32 bytes.
• Confirm that the cell/tag specified by (S2) is defined in
vision system side.
• Correct the program so that the (S3) data type and the
data range are corresponding to the vision system side
in MVOUT instruction.
Correct the program to specify "0: ASCII" to (S3) of the
MVCOM instruction or use the MC protocol when
acquiring the data (string etc.) other than numerical value
from the vision system.
When the floating point type is specified in the data of
(S3), correct the program so that the data is within the
range of the 32-bit floating point type.
Event task enable may be executed in the normal task
only. Correct the program.
Event task disable may be executed in the normal task
only. Correct the program.
