Omron E5ZN - Setting Scaling Upper and Lower Limits (Analog Input); Analog Input

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Setting Scaling Upper and Lower Limits (Analog Input) Section 4-3
4-3 Setting Scaling Upper and Lower Limits (Analog Input)
4-3-1 Analog Input
• An analog voltage input can be scaled matched to the control application.
• Scaling is set in the “scaling upper limit,” “scaling lower limit,” and “deci-
mal point” parameters. These parameters cannot be used when a tem-
perature input is selected.
• The “scaling upper limit” parameter sets the physical quantity to be
expressed by the upper limit of input, and the “scaling lower limit” param-
eter sets the physical quantity to be expressed by the lower limit of input.
The “decimal point” parameter specifies the number of digits past the dec-
imal point.
• The following figure shows a scaling example for an input of 0 to
50 mVDC for humidity. After scaling, the humidity(%) can be directly read.
In this example, the scaling upper and lower limits are set so that inputs 0 to
50 mV are scaled to 10.0% to 95.0%.
Scaling upper limit: 950
Scaling lower limit: 100
Decimal point position: 1
Readout
(humidity)
Upper limit (95.0%)
Lower limit (10.0%)
0
50
Input (mV)