Impulse 8003 User Manual
Page 10
© Sealevel Systems, Inc.
- 8 -
REL-16.PCI User Manual
Reading the Outputs
The relay ports return the ones complement of the value that is currently being used
to drive the relays. When using the API the actual value is returned not the
complement of the value.
Writing the Outputs:
The output ports are the only ports that can be written. The relays on a standard
REL-16.PCI are normally open. To close a relay a one must be written to the
appropriate bit.
Register Description
Address Mode D7
D6
D5 D4 D3 D2 D1 D0
Base+0
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+1
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+2
R/W PCD7 PCD6 PCD5 PCD4 PCD3 PCD2 PCD1 PCD0
Base+3
R/W PDD7 PDD6 PDD5 PDD4 PDD3 PDD2 PDD1 PDD0
Base+4
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+5
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+6
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+7
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}