Omron CRT1 - 10-2009, Operation Manual

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Summary of the Analog Input Slave Units
Section 6-2
Note In default, "Raw Value" is to be allocated to I/O.
Furthermore, "Analog Data 1" can be selected separately for each input as
described below.
6-2-3 I/O Data Type and Allocation
I/O Data
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.
Data allocation is performed by CX-Integrator.
Input Data
Input CH0
Math
processing
Analog input
value
Other process-
ing results
Selected processing
Analog Data 1
Input CH1
Math
processing
Analog input
value
Other process-
ing results
Selected processing
Input CH2
Math
processing
Analog input
value
Other process-
ing results
Selected processing
Input CH3
Math
processing
Analog input
value
Other process-
ing results
Selected processing
Analog Data 1
Analog Data 1
Analog Data 1
I/O data Details
Analog Data 1
(4 input words (8
bytes)) • Used to monitor analog data.
• One type of data from the 4-word analog value, peak value,
bottom value, top value, valley value, and rate of change is
selected and allocated. (The default is allocation of the ana-
log value.)
Note The comparator function can be used with regards to
the value allocated to analog data 1.
Top/Valley Detection
Timing Flags (1 input
word (2 bytes)) Top/Valley Detection Timing Flags are allocated in one word.
The flag is allocated together with the top or valley value in
order to identify the timing for the Master Unit to capture the
top or valley hold value.
Analog Status Flags
(2 input words (4
bytes)) Each of the bits for the Comparator Result Flag, Top/Valley
Detection Timing Flag, Disconnected Line Detection Flag are
allocated. The function of each bit is as follows:
• Comparator Result Flags
Allow control of the judgement results only, without allocat-
ing analog values.
• Top/Valley Detection Timing Flag
Allocated simultaneously with top value and valley value
and used for data capture timing.
• Disconnected Line Detection Flag
Disconnected line can be detected even if analog value is
not allocated.
Analog Data +
Top/Valley Detection
Timing Flags (5 input
words (10 bytes)) From the start, the Top/Valley Detection Timing Flag (1 word
(2 bytes)) is allocated to the end of analog data 1 (4 words (8
bytes)).