Mitsubishi Electric MELSEC-A0J2H Series Handbook page 168

10
REPLACING THE SPECIAL FUNCTION MODULE
(b) Functional comparisons
Item
The number of channels where A/D
A/D conversion conversion is possible/prohibited
possible/Prohibited can be set. By making unused
setting channels conversion prohibited,
sampling time can be shortened.
Analog input value for each channel
can have A/D conversion
Sampling processing
performed, and the digital output
value can be output.
Averaging processing specified
channel A/D conversion is
performed according to set times or
Averaging processing set processing time, the maximum
and minimum times are removed,
and the remaining total is averaged
and stored in the buffer memory.
Maximum value/
minimum value hold
function
Temperature drift
compensation function
Resolution mode
Online module change
10
- 5
A0J2-68AD Q68ADV
A/D conversion possible/prohibited
can be set. By making unused
channels conversion prohibited,
sampling time can be shortened.
Analog input value for each
channel can have A/D conversion
performed, and the digital output
value can be output.
Each channel undergoes A/D
conversion for an average number
of times or set time, and the
average value is digitally output.
The digital output maximum value
– and minimum value is stored in the
module.
The error depending on the
module's ambient temperature
conversion can be automatically
compensated to increase the
– conversion accuracy. The
temperature drift compensation
function (all channel A/D
conversion time) + 160
implemented.
Depending on the application, the
resolution mode switches, and
resolution of 1/4000,
–
1/12000, 1/16000 can be selected.
Resolution mode setting can be
done for all channels in batch.
Module can be replaced without
–
stopping the system.
: Compatible, : Partially changed, × : Incompatible
Compat- Precautions for
Q68ADI
ibility
The valid range can be
changed.
–
–
s can be
µ
–
The CPU modules that
support the online module
–
change are a Process CPU
and a Redundant CPU.
replacement