89
DD1010 FLYNET
6.2.2
8 in/12 out card
Function description
The 8 input/12 output expansion card allows the weighing indicator on which it is installed to manage
8 dry contact input signals (coming for example from a relay output) and to provide 12 digital dry
contact output signals.
The input signals can be connected in two different ways (see fig. 6.2.2-1: proximity sensor
connection example):
1. Using the opto-ins12V inside the board provided on the 25-pin output connector
2. Providing a +12V or +24V voltage external to the card and suitably filtered
In order to use solution 1) it is necessary to close the jumper J4; in case of solution 2) the jumper J4
must remain open (see fig. 6.2.2-2).
Figure 6.2-2 - Possible proximity sensor connections - Solution 1
Figure 6.2-3 - Possible proximity sensor connections - Solution 2
As far as the digital output signals are concerned, 3 independent output units are available, each of
which refers to a different common pin.
All output signals are of dry contact type and common pins can be connected together to use a
single voltage reference.
The card also has a hardware watchdog management that allows guaranteeing the almost
instantaneous reset (about 1 second) of all digital outputs in case of undesired block or stop of the
weighing indicator.
To enable the hardware watchdog function it is necessary to close the jumper J19 on the card, to
keep this function disabled, leave the jumper J19 open.
Technical characteristics
Summary of Contents for DD1010
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