Omron CRT1 - 10-2008, Operation Manual

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Overview of Analog I/O Slave Units Section 6-1
Flow of Data in Analog
Input Slave Units
Note By default, the input analog value is allocated for I/O without modi-
fication.
For Inputs 0 to 3, the Analog Data can be separately selected, as shown in the
following diagram.
6-1-5 I/O Data
Analog Input Slave
Units (CRT1-AD04)
Analog Input Slave Units support the following four types of input data, and
one type of output data. The required data can be allocated for I/O.
Input Data
Moving average, scal-
ing enabled/disabled
Six types of data
Select one of the six types of data and
allocate it as the Analog Data.
1. Analog input
value
2. Peak value
3. Bottom value
4. Top value
5. Valley value
6. Rate of change
Analog Data
(allocated I/O data)
Allocated for I/O.
Comparator
The Comparator can be used
with values allocated as the
Analog Data.
Analog Status Flags
(allocated I/O data)
Input 0
Math
processing
Analog input
value
Other process-
ing results
Selected processing
Analog Data
Input 1
Math
processing
Analog input
value
Other process-
ing results
Selected processing
Input 2
Math
processing
Analog input
value
Other process-
ing results
Selected processing
Input 3
Math
processing
Analog input
value
Other process-
ing results
Selected processing
Analog Data
Analog Data
Analog Data
I/O data Details
Analog Data
(8 input bytes) • Used to monitor analog data.
• Select one type of data from the analog input value, peak
value, bottom value, top value, valley value, and rate of
change. (Default allocation: Analog input value)
Note Values allocated to analog data can be used with the
comparator.
Top/Valley Detection
Timing Flags (2 input
bytes) Top/Valley Detection Timing Flags are allocated in one word.
These flags are used to time reading the values held as the
top and valley values when both the top and valley values are
allocated at the same time.