DoEchoBackMultiBit

Function

 

Inputs multiple bits from digital output bits.

 

Format

 

ret = dncDaq01.DoEchoBackMultiBit(DeviceNo, DoBit, DoBitNum, DoData)

 

Parameters

 

DeviceNo [ C#: short ] [ VB.NET: Short ]

Specifies the device No. managed by DncDaq.

 

DoBit [ C#: out short ] [ VB.NET: Short ]

Store the logical output bit numbers into an array, and specify the base address of this array.

 

DoBitNum [ C#: short ] [ VB.NET: Short ]

Specifies the number of bits which are specified by DoBit. The maximum number of bits is 256.

 

DoData [ C#: out byte ] [ VB.NET: Byte ]  

Specifies the address of the variable to store the output data. The returned output data are either 0 or 1.

 

Return value

 

Ret [ C#: int ] [ VB.NET: Integer ]

 

■Common

Value

Description

0

Normality completion

500001

The method on an unconfigured device has been called. Check the device settings.

500002

The method was called that the device does not support.

510001

The input parameter is invalid. Check the parameter contents.

 

■DIO Devices

Value

Description

10100

Invalid data buffer address.

20102

The bit number exceeds the specifiable range.

20103

Bit number beyond the limit.

Other errors (see: Error code details)

 

Remarks

 

Inputs multiple bits from output bits. Before this function is called, it is necessary that the logical bit numbers to be input are set into the array specified by DoBit.

The data are stored into the array named Data by the order of logical bits which are specified by DoBit. The returned output data are either 0 or 1.
It is used to monitor the output contents.

 

Example

 

Inputs data from bit 0 and bit 1.

C#

int     Ret
short[] DoBit  = new short[2];
byte[]  DoData = new byte[2];

DoBit[0] = 0;
DoBit[1] = 1;
Ret = dncDaq01.DoEchoBackMultiBit(DeviceNo, DoBit, 2, DoData);

 

VB.NET

Dim Ret As Integer
Dim DoBit(1) As Short
Dim DoData(1) As Byte

Ret = dncDaq01.DoEchoBackMultiBit(DeviceNo, DoBit, 2, DoData)