Somat eDAQlite - ELDIO Digital Output

Somat eDAQ lite
204
I2773-4.4 en
13.1.2 ELDIO Digital Output
Use the Somat SAC-TRAN-MP Transducer Cable (1-SAC-TRAN-MP-2-2 or
1-SAC-TRAN-MP-10-2) to wire ELDIO digital outputs.
Operating a 12-volt Incandescent Bulb
The following diagram shows an incandescent bulb (3 watts maximum) used as an
indicator in the digital output circuit. An external 12-volt DC power supply provides
power for the bulb. A three-watt bulb uses the current capacity of all lines in an ELDIO
bank. The light turns on when the output is set to FALSE.
Figure 13-3: Wiring diagram for using an incandescent bulb on an ELDIO output.
Operating a Light Emitting Diode (LED)
The following diagram shows the use of an LED as an indicator in the digital output
circuit. A FALSE output causes the diode to light. The total of all diode currents must
be less than 250 mA for the an ELDIO bank. The resistor R limits the current through
the diode when the LED is on. For more information on output current limitations, refer
to the ELDIO data sheet.
Figure 13-4: Wiring diagram for using an LED on an ELDIO output.
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