e.bloxx D1-1, D1-4
MEASUREMENTS
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HB_EBLOXX-D1_E_V18.doc
Gantner Instruments Test & Measurement GmbH
4. MEASUREMENTS
4.1. General
The e.bloxx D1-1 and D1-4 have 8 resp. 32 digital inputs/outputs. The configuration of the inputs/outputs is done with
the Configuration Software ICP 100
as required by the application. For the e.bloxx D1-4 the 32 physical inputs/outputs
can be configured independently from each other.
Digital
Inputs
The inputs of the e.bloxx can be used for collecting status information, for measuring frequencies or for counting. The
inputs have an excess voltage protection (transil diodes), which comes into action at approx. 33 V. The maximum
permissible input voltage amounts to 30 V. Input voltages between 3.5 VDC and 30 VDC are interpreted as logic LOW
("0"), input voltages lower than 1.0 V as logic HIGH ("1"). The maximum fan-in current amounts to 1.5 mA.
Picture
4.1.
- Definition of Signal Levels and Logic Levels
Digital
Outputs
The Digital Output Variable supports:
• digital status output, host-controlled
• digital status output, process-controlled
• pulse-width modulated signal output (PWM)
• frequency signal output
Via the digital inputs/outputs digital status information or measured quantities and sensor variables respectively can be
output in digital form, according to the configuration. Digital status information can be withdrawn from the process (Process
Out). A typical case of application would be e.g. the local output of an acoustic or optical signal in case a limiting value is
exceeded or undershot by a measured value. Or the digital outputs may be set from the host computer by bus (Host Out).
For analogue regulated quantities measured values or sensor variables in general can also be output as pulse-width
modulated signal (PWM) by the digital output. The time base respectively the frequency with that the pulse width
modulated signal output will be set, can be configured by the user by assistance of the
Configuration Software ICP 100
.
Therefore the settings 10 ms, 1 s and 10 s are possible without depending on the functions of the remaining I/Os.