Analog Input - Omron E5EK DEVICENET User Manual

J Temperature input
F Temperature unit
F Temperature
input shift
J Analog input
• To switch the temperature unit from "_C" to"_F" when input is tem-
perature, switch the "_C/_F selection" parameter (setup mode) from
" " to " ".
• When input is temperature input, the upper and lower limit values of
the sensor can be shifted linearly. For example, if both the upper and
lower limit values are shifted by 1.2_C, the process value (before shift)
is regarded as 201.2_C after shift when input is 200_C before shift.
• To set input shift, set shift values in the "input shift upper limit" and
"input shift lower limit" parameters (level 2 mode).
Temperature
Upper limit value
Lower limit value
0
• When the analog input (the voltage input and current input) is se-
lected, scaling matched to the control is available.
• The "scaling upper limit", "scaling lower limit" and "decimal point"
parameters (setup mode) are used for scaling. These parameters can-
not be used when the temperature input type is selected.
• The "scaling upper limit" parameter sets the physical quantity to be
expressed by the upper limit value of input, and the "scaling lower
limit" parameter sets the physical quantity to be expressed by the
lower limit value of input. The "decimal point" parameter sets the
number of digits past the decimal point.
• The following figure shows a scaling example of 4 to 20 mA input. Af-
ter scaling, the humidity can be directly read. In this case, the "deci-
mal point" parameter is set to "1".
Readout (humidity)
Scaling upper limit
value (95.0%)
Scaling lower limit
value (10.0%)
0
3.2 Setting Input Specifications
Input shift upper limit value
After shift
Before shift
Input shift lower
limit value
100
Input (4 to 20 mA)
100%FS
Input (%FS)
3--5