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I/O Controller 2 Manual HW group
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Bitwise OR
0 (0x00) OR 0 (0x00) = 0 (0x00)
255 (0xFF) OR 0 (0x00) = 255 (0xFF)
255 (0x0F) OR 3 (0x03) = 255 (0xFF)
240 (0xF0) OR 8 (0x08) = 248 (0xF8)
#A: Power Up INIT 0
A decimal value from 0 to 255 that is written to the output register after device reset (or power
failure), before the I/O Controller attempts to establish a connection with the remote unit and
synchronize their digital inputs and outputs.
#B: Power Up AND mask
255
Binary mask of values from the remote side that affect the outputs when initializing for the first time
(after reset or power up).
#C: Power Up OR mask
0
Range of digital output values that can be
influenced by the states of inputs retrieved from the
remote side after RESET.
#D: Power Up XOR mask 0
The binary XOR function is suitable inverting individual output bits. This is used, for example, when a
button closes against GND but the corresponding relay needs to switch aPWR (logic LOW at
the input needs to be inverted to logic HIGH at the output).
Examples:
•
#D = 0 (0x00)
– Values are transferred without changes. Logic HIGH at an input results in a
logic HIGH at the respective output.
•
#D = 1 (0x01)
– The D0 output bit is inverted with respect to the D0 input bit. Values at D1
through D7 are transferred without changes. Logic HIGH at an input results in a logic HIGH at
the respective output.
•
#D = 255 (0xFF)
– All output bits are inverted with respect to the respective input bits.