INSTALLATION AND CONFIGURATION MANUAL
U4T100-U4T140
56
Pool Mode: GPI
Every GPI pool can be set up to process the input contacts in three ways.
This setting is called
GPI_n-Mode
and can be set into priority
(Prio)
, priority latched (
Prio_Latched
) and
Binary
mode. N is
defined as a character in the range from A-Z depending on the number of
pools. The default output value of a pool is always 0. This translates to
preset 1 in EVS products.
In priority mode, the contact which has the highest priority defines the
pool value. Priority is defined as ranging from the least significant bit
(low priority) to the most significant bit (high priority). This is
essentially a one-hot coding of preset values.
If a pool has three contacts connected and all inputs are high, the output
value of the pool will be 3. Another example is when three contacts are
connected to a pool with the first and third contact are low and the
second contact is high the output value is 1.
Input
1
Input
2
Input 3
Pool
value
Preset nr
0
0
0
1
1
1
0
0
1
1
X
1
0
2
2
X
X
1
3
3
Table 1 Pool value in prio and prio_latched mode
In binary mode, the contacts are interpreted as a binary value of
concatenated contacts available in a pool. E.g. assigning two contacts to
a GPI pool translates to the following output values.
Input
1
Input 2
Pool
value
Preset
nr
0
0
1
1
0
1
2
2
1
0
3
3
1
1
4
4
Table 2 Pool value in binary mode
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