©Sealevel Systems, Inc.
8004e Manual
11
SL9207 2/2017
DIGITAL I/O INTERFACE
The DIO-32.PCIe provides four parallel input/output (I/O) ports. The ports are organized as ports A, B, C,
and D. Port A and B are input ports interfaced to optically-isolated inputs, while ports C and D are reed relay
output ports. Assuming an I/O address of 4000 Hex the following table shows the Port Addresses.
Base Address
Hex
Decimal
Mode
Port A Address
4000
16384
Port B Address
4001
16385
Optically Isolated Input Port
Port C Address
4002
16386
Port D Address
4003
16387
Reed Relay Output Port
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