List Of Functions; Functions - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

2.2

List of functions

The following table lists the functions list.
List of Functions
Range switching function
A/D conversion enable/disable setting function
A/D conversion Sampling processing
method
Averaging Time average
processing
Count average
Moving average
Over scale detection function
Scaling function
Shift function
Digital clipping function
Maximum value/minimum value hold function
Warning output Process alarm
function
Rate alarm
Disconnection detection function
Convergence detection function
Deviation detection between channel function
Offset/gain setting function
Offset/gain initialization function
Common function
2.3

Functions

This section describes the functions of the FX5-4AD-ADP and the setting procedures for those functions.
This section describes the special relays and special registers for the 1st FX5-4AD-ADP module.
For checking the special relays and special registers for the 2nd and later FX5-4AD-ADP modules, refer to the
following:
Page 63 List of Special Relays, Page 77 List of Special Registers
Description
Allows switching the input range of an analog input for each channel. Switching the
range makes it possible to change the input conversion characteristics.
Controls whether to enable or disable the A/D conversion for each channel.
Executes A/D conversion of analog input values sequentially and stores the digital
output values to the special registers.
Executes A/D conversion for a set time, calculates the average of the total value, and
stores the result in special registers. The number of processing times within the set time
changes depending on the number of channels where A/D conversion is enabled.
Executes A/D conversion for a set number of times, and calculates the average of the
total value excluding the maximum value and the minimum value to store it in the
special registers. The time taken to store the average value obtained by the average
processing in the special registers changes depending on the number of channels
where the A/D conversion is enabled.
Averages digital output values taken at every scan for a specified number of times, and
stores the averaged value in the special registers. Because the target range for
averaging processing is moved in response to every sampling processing, the latest
digital output value can be obtained.
Function to detect analog input values that are over a input range.
Performs scale conversion on digital output values within a specified range between a
scaling upper limit value and a scaling lower limit value. This function reduces the time
and effort to create a program of the scale conversion.
Adds (shifts) a set conversion value shift amount to a digital output value and stores the
result in the digital operation value. The digital operation value reflects the change in the
conversion value shift amount on a realtime basis. Therefore, fine adjustment can be
easily performed when the system starts.
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 to the special
registers for each channel.
Outputs a warning when a digital operation value enters the preset warning output
range.
Outputs a warning when the change rate of a digital output value is equal to or more
than the rate alarm upper limit value, or the rate is equal to or less than the rate alarm
lower limit value.
Disconnection can be detected for each channel.
Detects whether the digital operation value is within a certain range in the specified
time.
Detects whether the difference in the digital operation value is larger than a specified
value between channels.
Corrects errors in digital output values.
Initializes the offset value and gain value stored in the built-in memory of the FX5-4AD-
ADP.
Explains the common functions such as changing the setting values while the CPU
module is operating.
Reference
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2.2 List of functions