# 6K-EXP Series

6K-EXP Series boards can only be used with PCI-DAS6000 Series A/D boards.

## Temperature input

Functions

UL: cbTIn(), cbTInScan()

UL for .NET: TIn(), TInScan()

Scale

CELSIUS, FAHRENHEIT, KELVIN

HighChan

From 16 up to 255 for 16-channel boards, and from 64 up to 303 for 64-channel boards. The value depends on the number of boards connected and the application.

## Analog input

Functions

UL: cbAIn()

UL for .NET: AIn()

HighChan

From 16 up to 271 for 16-channel boards, and from 64 up to 319 for 64-channel boards. The value depends on the number of boards connected and the application.

Range

Applies to the A/D board to which the 6K-EXP board is connected (refer to the "PCI-DAS6000 Series" topic for board-specific information).

## Hardware considerations

Channel numbers for accessing the expansion boards begin at 16 for 16-channel boards and at 64 for 64-channel boards. To calculate the channel number for access to 6K-EXP channels, use one of the following formulas.

- If there are 16 or less single-ended channels:

Chan = (ADMuxChan × 16) + (16 + EXPChan)

- If there are 64 single-ended channels and the A/D mux channel is less than or equal to 7:

Chan = (ADMuxChan × 16) + (64 + EXPChan)

- If there are 64 single-ended channels and the A/D mux channel is greater than 7:

Chan = (ADMuxChan × 16) - (320 + EXPChan)

EXPChan is a number ranging from 0 to 15 that specifies the channel number on a particular bank of the expansion board.

If all A/D channels are not used for EXP output, direct input to the A/D board is still available at these channels (using channel numbers below 16 for 8-channel and 16-channel boards, and below 64 for 64-channel boards).

When expansion boards are used for temperature input, set the gain of the A/D board to a specific range. All PCI-DAS6000 Series boards have programmable gain, so the range is set by the Universal Library. Generally, thermocouple measurements require the A/D board to be set to 5 V bipolar, if available (or 10 V bipolar if not). RTD sensors require a setting of 10 V unipolar, if available. These checks are made when you configure the system for temperature measurement using InstaCal.

The 6K-EXP16 uses non-contiguous A/D channels (0-7 and 32-39) when interfacing with a 64-channel PCI-DAS6000 Series boards (PCI-DAS6031, PCI-DAS6033, and PCI-DAS6071).