4-9SectionError Processing
108
Probable cause Countermeasure Page
The input device’s signal range
does not match the input signal
range for the relevant input number
at the Analog Input Unit.
Check the specifications of the
input device, and match the
settings for the input signal ranges.
81
The offset and gain are not
adjusted.
Adjust the offset and gain. 92
When using the 4 mA to 20 mA
range, the voltage input (+)
terminal and the current input (+)
terminal are not connected.
Connect the terminals. 74
The ratio conversion function is set
to be used, so the calculation
results are being monitored.
Correct the conversion settings. 89
Probable cause Countermeasure Page
The input signals are being
affected by external noise.
Change the shielded cable
connection to the Unit’s COM
terminal.
74
Insert a 0.01-µF to 0.1-µF ceramic
capacitor or film capacitor between
the input’s (+) and (–) terminals.
---
Try increasing the number of mean
value processing buffers.
82
Probable Cause Countermeasure Page
The output is not set for being
used.
Set the output for being used. 86
The output hold function is in
operation.
Turn ON the Output Conversion
Enable Bit.
87
The conversion value is set outside
of the permissible range.
Set the data within the range. 68
Probable Cause Countermeasure Page
The output signal range setting is
wrong.
Correct the output signal range
setting.
86
The I/O specifications of the output
device do not match those of the
Analog Output Unit (e.g., input
signal range, input impedance).
Change the output device. 66
The offset or gain is not adjusted. Adjust the offset or gain. 97
The ratio conversion function is set
to be used.
Correct the conversion settings. 89
Probable Cause Countermeasure Page
The output signals are being
affected by external noise.
Try changing the shielded cable
connection (e.g., the grounding at
the output device).
74
Value Does Not Change
as Intended
Conversion Values are
Inconsistent
Analog Output Does Not
Change
Output Does Not Change
as Intended
Outputs are Inconsistent