# PCI-DDA02, DDA04, and DDA08 Series

The PCI-DDA02, DDA04, and DDA08 Series includes the following hardware:

- PCI-DDA02/12, PCI-DDA02/16
- PCI-DDA04/12, PCI-DDA04/16
- PCI-DDA08/12, PCI-DDA08/16

The PCI-DDA02, DDA04, and DDA08 Series support the following UL and UL for .NET features.

## Analog output

Functions

UL: cbAOut(), cbVOut(), cbAOutScan()

UL for .NET: AOut(), VOut(), AOutScan()

Options

SIMULTANEOUS

HighChan

DDA02:0 to 1

DDA04:0 to 3

DDA08:0 to 7

Count

HighChan - LowChan + 1 max

Rate

Ignored

Range

BIP10VOLTS (±10 volts) | UNI10VOLTS (0 to 10 volts)
BIP5VOLTS (±5 volts) | UNI5VOLTS (0 to 5 volts)
BIP2PT5VOLTS (±2.5 volts) | UNI2PT5VOLTS (0 to 2.5 volts)

DataValue

0 to 4,095

For /16 hardware, the following argument values are also valid:

0 to 65,535 (Refer to 16-bit values using a signed integer data type for information on 16-bit values using unsigned integers.)

Pacing

Software only

## Digital I/O

Click here to display a table of the port numbers and corresponding bit numbers that are set by the digital I/O functions for hardware designed with the 82C55 chip or 82C55 emulation.

Functions

UL: cbDOut(), cbDIn(), cbDBitIn(), cbDBitOut(), cbDConfigPort()

UL for .NET: DOut(), DIn(), DBitIn(), DBitOut(), DConfigPort()

PortNum

FIRSTPORTA, FIRSTPORTB, FIRSTPORTCL, FIRSTPORTCH

SECONDPORTA, SECONDPORTB, SECONDPORTCL, SECONDPORTCH

DataValue

0 to 15 for PORTCL and PORTCH

0 to 255 for PORTA or PORTB

BitNum

0 to 47 using FIRSTPORTA

## Hardware considerations

##### Pacing analog output

Software only