HIMA HIMatrix F3 DIO 16/8 01 - Figure 2: Exemplary Structure of Buffered and Unbuffered Power Source; Figure 3: Exemplary Structure of Buffered and Unbuffered Power Source

3 Product Description F3 DIO 16/8 01
Page 14 of 58 HI 800 177 E Rev. 1.01
In the default setting, each of the 24V power sources (LS+) provides a current of 40 mA
which is buffered against power failures for 20 ms.
If higher current is required, the DI Supply[xx] system parameter can be set in the user
program to connect an unbuffered power source (1 A) for each terminal pair (33, 34 and 43,
44) and (53, 54 and 63, 64), see
Figure 2 and Figure 3.
The remote I/O reads back the state of the unbuffered power sources and if an overload
occurs, it switches off. The power sources are protected with current limiting components.
Unbuffered Power Source
Buffered Power Source
40 mA Current Limiting
1 A Current Limiting
Terminal Number
Figure 2: Exemplary Structure of Buffered and Unbuffered Power Source
Unbuffered Power Source
Buffered Power Source
40 mA Current Limiting
1 A Current Limiting
Terminal Number
Figure 3: Exemplary Structure of Buffered and Unbuffered Power Source
The connector cables for the inputs are not monitored.
It is not necessary to terminate unused inputs.