e.bloxx D1-1, D1-4
MEASUREMENTS
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HB_EBLOXX-D1_E_V18.doc
Gantner Instruments Test & Measurement GmbH
When configuring the digital inputs as a quadrature counter, the e.bloxx D1-1 or D1-4 constantly monitor the digital
inputs that are used for the counter (in this example I/O 1 and I/O 2) for a signal variation (0 -> 1 and 1 -> 0). If both
inputs have equal (different) signal levels and there appears a signal change at the first input the actual counting
measuring will be increased (decreased) by 1.
Vice versa to the progressive counter and the up/down counter both signal edges will be evaluated at the first digital
input (here I/O 1) at the quadrature counter.
The range of values of the counter is from approx. -2,1 billion up to +2,1 billion (32 bit). The values can be reset to zero
via the bus or via a digital input of the e.bloxx.
The progressive counter is possible with every input (I/O 1 ... I/O 8). The maximal counting frequency is 400 kHz.
Notice:
After a voltage cut-off all counters are reset to zero.
4.10. Digital Status Output - Host-Controlled
Picture
4.13 – Digital Output as Host-Controlled Output
Picture
4.14 - Signal Diagram of Host-Controlled Digital Output
With the host-controlled digital status output, the digital output is set according to the status information received by the
e.bloxx D1
via bus.
The distribution voltage can range from 10 to 30 VDC. It has to be either supplied externally or be picked up by the
power supply of the sensor modules.
The status of the digital output can be scanned as 1/0 information via bus.