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Function List - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

Analog control - intelligent function module.
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Function list

This section lists the functions of multiple input module.
Item
Operation mode
Input type/Range setting function
Conversion
Sampling processing
method
Averaging
Time average
processing
Count average
Moving
average
Scaling function
Shift function
Digital clipping function
Maximum value/Minimum value hold function
Alert output
Process alarm
function
Rate alarm
Input signal
Upper limit detection, lower
error detection
limit detection, upper and
function
lower limit detection
Simple disconnection
detection
Disconnection detection function
Logging function
Error history function
Offset/gain setting function
FX2N allocation mode function
2CH conversion mode function
Description
Select the operation mode (normal mode, 2CH conversion mode, offset/gain setting
mode) of the multiple input module.
Input type, and input range can be checked for each channel. Disabling the conversion on
unused channels reduces the conversion cycles.
Converts analog input values and temperature conversion values at every sampling
period, storing them in buffer memory areas.
Executes A/D conversion and temperature conversion for the set time and performs the
average processing on the total value excluding the maximum and minimum values. The
values that had the average processing are stored in the buffer memory areas. The
number of processing times within the set time varies depending on the number of
channels where the conversion is enabled.
Executes A/D conversion and temperature conversion for a set number of times and
performs the average processing on the total value excluding the maximum and minimum
values. The values that had the average processing are stored in the buffer memory
areas. The time taken to store the average value obtained by the processing in the buffer
memory area varies depending on the number of channels where the conversion is
enabled.
Averages digital output values taken at every sampling period for a specified number of
times, and stores the averaged value in the buffer memory area. The target range for
averaging processing moves at each sampling period, thereby allowing the latest digital
output value to be obtained.
Performs scale conversion on digital operation values within the range from a scaling
upper limit value to a scaling lower limit value, both of which are set at desired values.
This function helps reduce the man-hours taken for creating a scale conversion program.
Adds (shifts) a set conversion value shift amount to a digital output value, and stores the
result in the buffer memory area. A change in conversion value shift amount is reflected to
the digital operation value in real time, which facilitates fine adjustment at system start-up.
Fixes a possible digital operation value to the maximum digital output value or the
minimum digital output value when an input current or voltage exceeds the input range.
Stores the maximum and minimum values of digital operation values in the buffer memory
area for each channel.
Outputs an alert when a digital operation value falls within the preset alert output range.
This function outputs an alert when the change rate of a digital output value is equal to or
greater than the rate alarm upper limit value, or the rate is equal to or smaller than the rate
alarm lower limit value.
Outputs an alarm when an analog input value exceeds the preset range.
Outputs an alarm when an analog input value is 0.5 V or smaller or 2 mA or smaller.
Outputs an alarm when disconnection of a thermocouple, compensation lead wire, or
resistance temperature detector is detected. A measured temperature value to be stored
at the disconnection detection is selected from the following.
• Value just before disconnection
• Upscale
• Downscale
• Any value
Logs (records) digital output values or digital operation values. 10000 points of data can
be logged for each channel.
Records up to 16 errors and alarms that occurred in an multiple input module to store
them in the buffer memory areas.
Allows the correction of errors in digital output values.
Allows to convert the layout of buffer memory addresses of a multiple input module to the
one equivalent to FX2N-8AD. This compatibility enables the reuse of programs that have
proven performance on FX2N-8AD.
Performs A/D conversion of 2CH to 1 ms and can update the digital output value at the
same time.
Reference
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Page 388
3 FX5-8AD
337
3.4 Functions

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