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MELSEC-Q
7 TROUBLESHOOTING
7
7 TROUBLESHOOTING
This chapter explains the types of errors that may occur when the Q62DA, Q64DA,
Q68DAV or Q68DAI is used, and how to troubleshoot such errors.
7.1 Error Code List
If an error occurs in Q62DA, Q64DA, Q68DAV or Q68DAI while writing to or reading
data from the PLC CPU, the applicable error code is written to buffer memory address
19 (Un\G19).
Table 7.1 Error code list
Error code
(decimal)
Error description
Processing
10
The setting is outside the output range setting that
can be made by the intelligent function module switch
of the GX Developer. indicates the incorrectly
specified channel number.
Reset to the correct parameter with GX Developer
parameter setting. (See Section 4.5.)
111
Module error at startup.
Turn the power ON and OFF again. If the error
occurs again, the module may be malfunctioning.
Contact the nearest distributor or branch office with a
description of the problem.
40
The offset value is equal to or larger than the gain
value. indicates the channel number causing the
error.
Reset so that the offset value becomes smaller than
the gain value.
500
More than one channel was set at the same time
during offset/gain settings.
Set the correct value in buffer memory addresses 22
and 23 (Un\G22 and Un\G23).
60
The specified digital value is outside the valid range.
indicates the channel number where the error
occurred.
Set a value that is within the valid range.
700
The analog adjustment output in the offset/gain
setting mode is outside the specified value range.
Change the contents of buffer memory address 24
(Un\G24) so that it is within the range from –3000 to
3000.
POINT
(1) If more than one error occurs, the error code first detected by the D/A
conversion module is stored. No other error codes will be stored.
(2) The error described with can be cleared by setting the error clear request
(YF) to ON.
