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MELSEC-Q
8 TROUBLESHOOTING
8 TROUBLESHOOTING
This chapter explains the types of errors that may occur when the D/A converter
module is used, and how to troubleshoot such errors.
8.1 Error Code List
If an error occurs in D/A converter module while writing to or reading data from the
PLC CPU, the applicable error code is written to buffer memory address 19 (Un\G19).
Table 8.1 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. (Refer to 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.
161
1
The G.OGSTOR instruction was executed in the
offset/gain setting mode.
Do not execute the G.OGSTOR instruction in the
offset/gain setting mode.
162
2
• The G.OGSTOR instruction was executed
consecutively.
• At the time of offset/gain setting, a set value was
written to the E
2
PROM 26 or more times.
• Execute the G.OGSTOR instruction only once for
one module.
• At the time of offset/gain setting, write a set value
only once at one time.
163
2
The G.OGSTOR instruction was executed for the
model that differs from the model for which the
G.OGLOAD instruction had been executed.
Execute the G.OGLOAD and G.OGSTOR
instructions for the same model.
40
2
The offset value is equal to or greater than the gain
value at the time of user range setting or user range
restoration.
indicates the channel number causing
the error.
Reset so that the offset value becomes smaller than
the gain value.
500
2
More than one channel was set at the same time
during offset/gain settings.
Set the correct value in Offset/gain setting mode and
offset/gain specification (buffer memory addresses
22, 23: Un\G22 and Un\G23).
60
2
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
2
The analog adjustment output in the offset/gain
setting mode is outside the specified value range.
Change the contents of Offset/gain adjustment value
specification (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
converter module is stored. No other error codes will be stored.
(2) Error code 161 marked with
1 is not stored in Error code (buffer memory
address 19 (Un\G19). It is written to the Completion status area, (S) + 1, of the
G(P).OGSTOR instruction.
(3) Error code marked with
2 can be cleared by turning on Error clear request
(YF).
(4) The error is cleared at the time of mode switching.
8
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