Functional Comparison - Mitsubishi Electric MELSEC L Series Manual

4
ANALOG I/O MODULE REPLACEMENT

4.2.2 Functional comparison

(1) A/D conversion functions
Item
Sets whether to enable or disable A/D conversion for each
A/D conversion enable/disable
channel. By disabling the conversion for the channels that are
function
not used, the sampling time can be shortened.
Performs the A/D conversion for analog input values
Sampling processing successively for each channel, and outputs digital output values
upon each conversion.
For each channel, averages A/D conversion values by the
Time average amount of time, and outputs the average value as a digital
value.
For each channel, averages A/D conversion values by the
Averaging
Count average number of times, and outputs the average value as a digital
processing
value.
For each channel, averages A/D conversion values by the
Moving average number of times on a moving of each sampling processing, and
outputs the average value as a digital value.
Range switching function Sets the input range to be used.
Extends the input range. By combining this function with the
Input range extended function input signal error detection function, simple disconnection
detection can be executed.
Maximum value/minimum value Stores the maximum and minimum values of the digital output
hold function values in the module.
Input signal error detection
Detects the analog input value which exceeds the setting range.
function
Scale-converts the digital output value to the set range of the A/
D conversion scaling upper limit value and A/D conversion
Scaling function
scaling lower limit value. This omits the programming of the
scale conversion.
Logs the digital output value or scaling value (digital operation
Logging function value). The data of 10000 points can be logged for each
channel.
(2) D/A conversion functions
Item
D/A conversion enable/disable Sets whether to enable or disable D/A conversion for each
function channel.
Sets whether to output the D/A conversion value or the offset
D/A output enable/disable value for each channel.
function The conversion speed is constant, regardless of the output
enable/disable status.
Range switching function Sets the output range to be used.
Sets the status of analog output values (HOLD or CLEAR),
Analog output HOLD/CLEAR
according to the CPU module operating status (RUN, STOP, or
function
stop error).
Outputs the D/A converted analog values when CH Output
Analog output test when CPU
enable/disable flag is forcibly turned on while the CPU module is
module is in STOP status
in the STOP status.
4
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Description
Description
: Available, –: Not available
A1S63ADA L60AD2DA2 Precautions for replacement
The setting range of average
time and count differ.
Refer to the MELSEC-L
Analog I/O Module User's
Manual, and check the
specifications.
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–
–
–
To use the same digital output
value that is used for the
A1S63ADA, set the scaling
– upper and lower limit values
that match the resolution of the
A1S63ADA using the scaling
function.
–
: Available, –: Not available
A1S63ADA L60AD2DA2 Precautions for replacement
With the L60AD2DA2,
disabling the D/A conversion
for an unused channel reduces
the conversion cycles.
The A1S63ADA is set the
status for all channels at once
using the HLD/CLR terminal
on the front of the module.
With the L60AD2DA2, the
status can be set for each
channel on the Switch Setting
window of GX Works2.
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