Block

Mask

Description

The National InstrumentsNI6703 and NI6704 cards feature 16 voltage outputs and 8 digital I/O lines. The NI6704 card also features 16 current outputs. This block monitors the voltage or current analog output channels.

Parameters

Bus Type	Select the bus type (PCI or PXI) of the target node in this list.
Card Type	Select the card model in this list.
PCI index	Enter the PCI index (see definition)of the card on the PCI (or PXI) bus.
Output Type	[NI-6704only] Select the type of outputs desired. The choices are voltage(output in volts) or current (output in amps). To output data to both voltage and current channels, use one block for voltage channels and another one for current channels.
Channel List	Enter the vector of channel numbers to be monitored by this block. The channel numbers, in the range [0-15], can be entered in any order and must appear only once in the list.
Synchronize	see definition.

Inputs

At each calculation step of the model, the block writes to the output channels the data provided by the model through the inports of the block. The input values are assumed to be in volts or in amps, depending on the output type selected in the mask.

Note: The output ranges are [-10V,+10V] or [0,20mA].

Three sets of input values must be specified :

reset	Values that will be written to the analog out channels when the reset button is hit.
pause	Values that will be written to the analog out channels when the model is in pause mode, that is at initialization or when the pause button is hit.
run	Values that will be written to the analog out channels at each time step.

Note: To ensure that the pause and reset values be properly written out, it is recommended to set these values in the model subsystem that contains the Op NI670xAnalog Out block, and not to provide them from the console subsystem.

Outputs

This block has no outputs.

Characteristics and Limitations

Connector Pin Assignments

The following table gives the description of the signals related to the analog output channels and is followed by the connector pin assignments of the 68-pin I/O connector.

Signal Name	Signal Description
VCH0..15	Voltage analog output channels.
ICH0..15	[NI6704 only] Current analog output channels.
AGND0..31, AGND	Analog output ground pins.

68-pin I/O

Pin	Description	Pin	Description
34	VCH0	68	AGND0/AGND16
33	AGND1/AGND17	67	ICH16
32	ICH17	66	VCH1
31	VCH2	65	AGND2/AGND18
30	AGND3/AGND19	64	ICH18
29	ICH19	63	VCH3
28	VCH4	62	AGND4/AGND20
27	AGND5/AGND21	61	ICH20
26	ICH21	60	VCH5
25	VCH6	59	AGND6/AGND22
24	AGND7/AGND23	58	ICH22
23	ICH23	57	VCH7
22	VCH8	56	AGND
21	ICH24	55	AGND8/AGND24
20	AGND9/AGND25	54	VCH9
19	AGND	53	ICH25
18	AGND10/AGND26	52	VCH10
17	VCH11	51	ICH26
16	ICH27	50	AGND11/AGND27
15	VCH12	49	AGND12/AGND28
14	AGND13/AGND29	48	ICH28
13	ICH29	47	VCH13
12	VCH14	46	AGND14/AGND30
11	AGND15/AGND31	45	ICH30
10	ICH31	44	VCH15
9	DIO7	43	AGND
8	DIO6	42	DGND
7	DIO5	41	DGND
6	DIO4	40	RFU
5	DIO3	39	DGND
4	DIO2	38	RFU
3	DIO1	37	DGND
2	DIO0	36	DGND
1	+5V	35	DGND

Direct Feedthrough	No
Discrete sample time	No
XHP support	Yes
Work offline	No

RT-LAB Documentation

OpNI670x Analog Out