Function description
Operating Manual PSS67 IO1 16FDI
1004417-EN-03
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Infeed for device supply
– Polarity protection
– Voltage monitoring
– Transient voltage limitation
– 20 ms voltage buffer if the supply voltage is interrupted
4.2.3
microSD card
The SD card has the following functions:
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The microSD card is used to store the naming data and the device project; see
PSS 4000 System Description.
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The microSD card is part of the safety concept on PSS 4000. If the microSD card is
missing or has been swapped, the next time the PSS67 device is booted it will be un-
able to achieve the operating status "PSSu System/PSS67 device in RUN condition
without error".
4.2.4
Reset button
The "Reset" button has various functions:
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Perform warm reset.
The reset button can be used to perform a warm reset.
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Transfer the naming data and/or device project from the SD card (deliberate operator
action to transfer the naming data and/or device project from the SD card to the device
memory).
INFORMATION
The warm reset and the transfer of the naming data and/or device project
are described in the "PSS 4000 System Description".
4.3
Input modules
Inputs
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The input status is signalled to the head module via the module bus.
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Test pulses can be used to check the inputs for shorts across contacts and correct
functionality.
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The inputs have input filters.
Test pulse outputs
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4 test pulse outputs per slot (2 x test pulse 0 and 2 x test pulse 1). Test pulse outputs
with the same name are connected on a slot.
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Test pulse outputs T0 and T1 are independent and use different test pulses.
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The test pulse outputs are short circuit-proof.
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Test pule outputs have a current limit.
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Test pulses can be switched on or off.
