Functions - Omron SYSMAC C Series Operation Manual

Specifications and General Information

5-1-4 Functions

The C500-AD501 Analog Input Unit offers maximum application flexibility and
high performance processing by combining the latest in analog and software
technology to provide the following features.
• Flexible configuration options
• High point density
• High accuracy and conversion speed
• Advanced functions
• Advanced digital state-of-the-art calibration thereby eliminating potentiome-
ters, and no need to perform calibrations during the life of the Unit.
The following table lists the functions of the C500-AD501.
Function
Input point Only the input points that will be used can be enabled,
enable/disable settings preventing processing for unused points to increase
processing speed.
Input signal range The input signal range can be set separately for each
settings input point.
Binary/BCD settings The data format for converted and processed data can be
for output data set to either binary or BCD.
Pointer word The pointer word can be set to specify the first word to be
read or written using the I/O READ or I/O WRITE
instructions. Processing speed is increased because only
the required words are read or written.
Scaling Converted data can be converted full-scale between upper
and lower limits sets by the user.
Filtering A filter can be set to prevent the output data from
changing rapidly even if the input value changes rapidly.
This function can be used to reduce errors that can occur
as a result of inductive noise.
Averaging An averaging function can be used to output an averaged
based on a specific number of samples. This function can
be used to reduce errors that can occur as a result of
noise on the analog input signal.
Peak hold The peak hold function enables outputting the maximum
converted value.
High/low alarms High and low limits can be set to turn ON High or Low
Alarm Flags when the converted data exceeds one of the
limits.
Over-range and An Out-of-range Error Flag is turned ON when the input
under-range errors signal exceeds the set input signal range.
EEPROM parameter Parameters can be stored in EEPROM so that they are
storage used automatically at startup.
Refer to 5-6 Functions for details on special functions.
Section
Description
5-1
65