3 Product Description
X-DO 24 01
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HI 801 019 E Rev. 4.00
3.4 Structure
The module is equipped with 24 digital outputs. The outputs are not electrically isolated
from one another and from the voltage supply.
The module comes with line monitoring (SC/OC). If the open-circuit monitoring is
configured in SILworX, see Chapter 4.3, the channels are automatically checked for open-
circuits (OC) and short-circuits (SC).
The outputs are protected against overload. If an overload is detected, the corresponding
output is switched off and switched on again after five seconds. If the overload is still
present, the output is switched off again for five seconds. This process is repeated as long
as the overload is present. If the cyclic switch-on after overload must be prevented, the
user program must be configured accordingly.
The safety-related 1oo2 processor system for the I/O module controls and monitors the I/O
level. The data and states of the I/O module are made available to the processor modules
via the redundant system bus. The system bus has a redundant structure for reasons of
availability. Redundancy is only ensured if both system bus modules are inserted in the
base plates and configured in SILworX.
The module is equipped with LEDs to indicate the status of the digital outputs, see
Chapter 3.4.2.
