Special Functions - Addi-Data PC104-PLUS1500 Technical Description

Functions of the board
8.4 Digital outputs
The board has 16 digital output channels (24 V High Side).
Positive logic is used
- logic "1": Setting the output through software (switch on ON),
- logic "0": Resetting the output (switch on OFF).
The outputs (switch) switch the +24 V ext. outside to the load. One end of the
load is connected to the ground of 0 V EXT (output. All outputs have a common
ground line: (0 V EXT (outputs) at the 40-pin header.
WARNING!
If you operate all outputs with the same voltage supply, the voltage
supply must deliver at least the power that is required for your
application.
The maximum supply voltage is 36 V. Each output can switch max. 150 mA
current. The current is limited for each 8 outputs on 1 A by a self-resetting fuse.
Characteristics of the outputs:
Short-cirucit proof against load. The output is switched off
-
Protection against overtemperature: The power unit is switched off, i.e. each 8
-
channels: 0 to 7 and 8-15
The outputs are switched off if the supply voltage drops
-
Diagnostic report: Short-circuit, overtemperature
-
The outputs allow the switching of ohmic, capacitive and inductive loads
-
Transil diodes, C filter and opto-coupler filter noise from the peripheral to the
systembus. Thus, the effect of inductive and capacitive noise is reduced. Possible
noise emissions are also reduced by C filters.
The board requires no initialisation to indicate the 24 V digital information. You
can program the outputs right after Power ON Reset.
Status after Power ON Reset: All outputs are reset
(switch on OFF).

Special functions

Two diagnostic bits are available.
The CC-diagnostics (
If an output is short-circuited or
-
if there is overtemperature on an output driver
The V -diagnostics calculates:
cc
If the external voltage supply is not available
-
32
ϑ
-diagnostic) calculates:
PC104-PLUS1500