CONTA-CLIP SMS-MULTI I/O - Manual (Page 26)

SMS-MULTI-IO
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5.4 5.4 5.4 5.4
Analog input
Analog input Analog input Analog inputssss
To use as a current input, lift the lid (see 3.1) and place a 250Ω / 0.1% resistor into the header on Ri:
To use as a voltage input the header must be empty.
5.4.1 5.4.1 5.4.1 5.4.1 Configuration Configuration Configuration Configuration
Configure the following items with the software:
• Name, this name must be unique and can not be used with any other input or output.
Default set as AI1 to AI8.
•
The input source:
•
0..10V
•
0..20mA
• 4..20mA
• The unit for the input feedback. E.g. litres (Ltr) or kilograms (kg).
• The min. value represents the scaled value for 0V, 0mA or 4mA.
•
The max. value represents the scaled value for 10V, 20mA.
•
Lower limit threshold.
•
Upper limit threshold.
•
Minimal change (hysteresis).
•
The Analog Inputs can generate messages with value and unit when:
• The upper limit + hysteresis is reached
• The lower limit – hysteresis is reached
• The status recovers between the upper and lower limit +/- hysteresis
Note:
Note: Note: Note: The min./max. and threshold/hysteresis values are limited to 5 digits with a maximum of 2
decimals.
E.g.:
E.g.: E.g.: E.g.:
A water tank level is converted to 0..10V. 0V represents 10 litres and 10V represents 100 litres.
If a message should be sent
when the tank reaches a minimum of 20 litres and when during filling
the level of 80 litres is reached, configure the module as follows: