Function List; Operation Mode - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

Function list

This section lists the functions of analog output module.
Item

Operation mode

Range switching function
D/A conversion enable/disable function
D/A output enable/disable function
Analog output HOLD/CLEAR function
Analog output test function when CPU
module stops
Scaling function
Shift function
Alert output function
Rate control function
External power supply disconnection
detection function
Disconnection detection function
Interrupt function
Wave output function
Error history function
Offset/gain setting
FX3 allocation mode function
Operation mode
The analog output module operates in the normal and offset gain setting modes. Change the mode according to the function
to be used.
The individual modes are described below.
Each operation mode further allows you to select the FX3 allocation mode function that controls the operation
with a layout of the buffer memory addresses equivalent to those in FX3U-4DA.
Description
Select the operation mode (Normal mode, Offset/gain setting mode) of the analog output
module.
Switches the analog output range for each channel. This function can change the output
conversion characteristic by switching the range.
Controls whether to enable or disable the D/A conversion for each channel. Disabling D/A
conversion for unused channels reduces the conversion cycle.
Specifies whether to output the D/A conversion value or offset value for each channel. The
conversion speed is constant regardless of the output enable/disable setting.
Sets whether to clear the current analog output value, or hold the previous value or the setting
value when the CPU module operating status is Run, Stop, or Stop Error.
Conducts an analog output test when CPU module stops.
Performs scale conversion on digital 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 the set input value shift amount to the digital value.
Outputs an alarm when the digital value exceeds the warning output upper limit value or is
below the warning output lower limit value.
Limits the increase or decrease amount of the analog output value per 80 s to prevent sudden
change of the analog output value.
Detects that the 24 V DC external power supply is not being supplied or the supply stopped.
Detects a disconnection by monitoring the analog output value.
Executes a CPU module interrupt program when an interrupt factor such as a disconnection or
warning output is detected.
Registers the previously prepared wave data (digital input values) in the analog output module
and performs consecutive analog output with the set conversion cycle.
Records up to 16 errors and alarms that occurred in an analog output module to store them in
the buffer memory areas.
Corrects the D/A conversion value error for each channel.
This function controls the operation with a layout of the buffer memory addresses equivalent to
those in FX3U-4DA. Sequence programs with proven results in FX3U-4DA can be diverted.
Reference
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2 FX5-4DA
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2.4 Functions