e.bloxx A9-1
CONFIGURATION
20
HB_EBLOXX-A9_E_V13.doc
Gantner Instruments Test & Measurement GmbH
4. MEASUREMENTS
4.1. General
The e.bloxx A9-1 has 4 analog outputs, 1 digital input and 1 digital output. The configuration of the inputs and outputs is
done with the Configuration Software ICP 100
as required by the application.
Analog Output
The analog outputs can be used for controlling actors or for regulating purposes. The outputs are defined as a voltage
output and current outputs and can be set via the RS 485 interface by means of the
Configuration Software ICP 10
0:
The analog output will be assigned by a D/A-converter with a resolution of 16 bit. He is DC decoupled from the
remaining device by an opto-coupler.
Notice:
When connecting an actor to an analog output it is necessary to take care that this actor does not exceed the
maximal burden of 500
of the current output. The possible resistance load of the voltage output can be up to 2 k
Digital Output
The digital output of the e.bloxx can be configured as threshold switch with definable threshold-settings and may then
be used e.g. as an alarm or limit monitor of the analog input.
Since the Open Collector output is "passive" the process of external elements always requires an external voltage. In
case of larger loads this current supply should be independent of the module supply. When connecting inductive loads a
freewheeling diode is recommended in order to prevent possible disturbances e.g. by induced voltage (see figure 4.1).
To the digital output you can directly connect: signal lamps, small relays, switching relays for larger loads, acoustic
signal installations, buzzers or beepers etc., as long as the connected loads do not exceed the values described in the
Technical Specifications.
Picture 4.1.
- Wiring of the Digital Output
