Omron CJ1W-AD041-V1, Operation Manual

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Specifications Section 7-1
1. Input and output signal ranges can be set for each input and output.
2. The accuracy is given for full scale. For example, an accuracy of
±
0.2%
means a maximum error of
±
8 (BCD) at a resolution of 4,000.
3. D/A conversion time is the time required for converting and outputting the
PLC data. It takes at least one cycle for the data stored in the PLC to be
read by the Analog I/O Unit.
4. When the operation mode for the CPU Unit is changed from RUN mode or
MONITOR mode to PROGRAM mode, or when the power is turned ON,
the Output Conversion Enable Bit will turn OFF. The output status specified
according to the output hold function will be output.
5. By means of the D(m+18) setting, the resolution can be changed to 8,000,
and the conversion time can be changed to 500
µ
s
.
7-1-2 I/O Function Block Diagram
Scaling Enabled only for conversion time or 1 ms and resolution of 4,000. Setting any values
within a range of
±
32,000 as the upper and lower limits allows D/A conversion to be exe-
cuted and analog signals to be output with these values as full scale.
Ratio conversion function Stores the results of positive and negative gradient analog inputs calculated for ratio and
bias as analog output values.
Positive gradient: Analog output = A
×
Analog input + B
(A = 0 to 99.99, B = 8,000 to 7FFF hex)
Negative gradient: Analog output = F – A
×
Analog input + B
(A: 0 to 99.99, B = 8,000 to 7FFF hex,
F: Output range maximum value)
Item Voltage output Current output
Same as above.
Same as above.
Same as above.
Same as above.
A/D
Analog I/O Unit CPU Unit
Special I/O
Unit Area
D/A
Input discon-
nection de-
tection
Mean value proc-
essing disabled
Mean value proc-
essing enabled
Scaling
enabled
Scaling
disabled
Peak value hold
function disabled
Peak value hold
function enabled
I/O
refresh
Analog input
1 conver-
sion value
Analog out-
put 1 con-
version val-
ue
Output hold
enabled
Output hold
disabled
Scaling
enabled
Scaling
disabled
Ratio conver-
sion disabled
Ratio
conversion
Ratio conver-
sion enabled
Ratio conver-
sion disabled
Analog
input 1
Analog
input 2
Analog
input 3
Analog
input 4
Analog
output 1
Analog
output 2