Features Of The Outputs; Set The Outputs 1 To 16; Fig. 9-3: Protection Circuitry For The Outputs - Addi-Data ADDINUM PA 1500 Technical Description

Functions of the board

Features of the outputs

Short-circuit current for the 16 outputs
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Protection against overtemperature: shut down logic. Ech group of 4
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outputs is switched off: 1 to 4, 5 to 8, 9 to 12, 13 to 16.
The outputs are switched off if the ext. supply voltage drops below 5 V.
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Diagnostic report through status register or interrupt to the PC in case of
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short-circuit, overtemperature, voltage drop or watchdog.
Transorb diodes, C filters and optical couplers filter noise from the
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peripheral to the system bus. Thus the effects of inductive and capacitive
noise are reduced. Possible noise emissions are also reduced by C filters.
The board requires no initialisation to output the 24V digital information.
You can program the outputs immediately after successful power ON reset
State after power ON reset : all the outputs are reset (switch on OFF).

Set the outputs 1 to 16

Two addresses are available in the I/O address range (only in 8-bit data bus
access):
- Base +2 for the outputs 1 to 8,
- Base +3 for the outputs 9 to 16.
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Fig. 9-3: Protection circuitry for the outputs

PA 1500