Status
⑤ Analog Output [ao_status.vi]

 

Select when you want to check the status of continuous analog output

 

 

Layout of IN/OUT terminal

 

OUT terminal

AoSamplingCount

Get the current number of samplings for 1Ch

e.g.) Sampling for 500 times in 2 channels, the number of data is 1000
    AoSamplingCount is 500

 

AoRepeatCount

Get the current number of repeat times
* For devices that cannot use repeat operation, the value that can be acquired is "0".

 

AoStatus

Get the current status of analog input
The followings are the meanings in bit of hexadecimal notation

Value

Status

Meaning

00000001H

Device is running

This status is ON from performing [Start] to conversion stop/ stop by error/stop by [Stop]

This status is also ON when wait for the start trigger/repeat operation

00000002H

Wait for the start trigger

When [Setting Trigger] is external trigger, this status is ON from performing [Start] to satisfying the trigger condition. As the conversion starts, this status changes to be OFF

Even if repeat operation, this status changes to be ON each time the state is waiting for a trigger

00000010H

Output up to the specified number of data

Operation is different depending on AoMemoryType of [Setting Timing]

FIFO Memory

When the data remained in buffer (Data which hasn't been output) reduce to the number of samplings set by AoSamplingTimes in [Start], this status changes to be OFF

(Please note that it's not [the number of data which has been output], which is different from RING memory)

Perform [write] when this status is ON. If the number of data in buffer is more than the specified number, this status changes to be OFF

RING Memory

When the number of output reached the value of AoSamplingTimes set in [Start], this status changes to be ON

This status changes to be OFF when performing [Start] or advanced function AioResetDevice_i.vi

If AoSamplingTimes in [Start] is specified as 0, this status is always OFF

00020000H

Sampling clock error

As the conversion speed is too fast, the error occurs, conversion stops and this status changes to be ON

This status changes to be OFF when performing [Start] or advanced function AioResetDevice_i.vi

00040000H

DA conversion error

Usually, this status is OFF, but when any error occurred, this status changes to be ON

If this status changed to be ON, there may be a failure of the device

If the problem is not resolved, please contact the window listed in [Contact]

00080000H

Driver spec error

If the driver cannot process in time, this error occurs

If the data transferred from driver memory to device buffer is not in time, this error occurs

(The driver processing time depends on the environment)

This error and [Sampling clock error] occur at the same time

e.g.) When AoStatus is [11H] (In decimal it's [17])
    [Device is running] and [Output up to the specified number of data] are ON

 

AoRemainSamplingTimes

Get the current amount of data remaining in the memory (the number of sampling for 1Ch)