ICP DAS USA ISaGRAF VP-23W7, Руководство пользователя

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ISaGRAF WinCE ViewPAC User Manual , V.1.6 , 1/2017 by ICP DAS
6-8
6.4.2 Analog R/W Functions
■
UserSetReg_short
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UserSetReg_long
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UserSetReg_float
Description:
These functions are to set 16-bit short integer , 32-bit long integer & 32-bit float value to the specified
Modbus network address.
Syntax:
UserShare.UserSetReg_Short (ByVal
iUserAddress As System.UInt16, ByRef iStatus As Integer) As
Byte
UserShare.UserSetReg_Long (ByVal
iUserAddress As System.UInt16, ByRef iStatus As Integer) As
Byte
UserShare.UserSetReg_Float (ByVal
iUserAddress As System.UInt16, ByRef iStatus As Single) As Byte
Parameter:
iUserAddress : Specify the Network Address of Variable (1 to 8191)
iStatus : Set the short or long integer or float value.
Example:
‘ Set a long value “1234567” to the variable of Modbus Network Address “1”.
UserShare.UserSetReg_long(Convert.ToUInt16(1), Convert.ToInt32(1234567) )
‘ Set a short value “-1234” to the variable of Modbus Network Address “3”.
UserShare.UserSetReg_short(Convert.ToUInt16(3), Convert.ToInt16(-1234) )
‘ Set a float value “2.174” to the variable of Modbus Network Address “4”.
UserShare.UserSetReg_float(Convert.ToUInt16(4), Convert.ToSingle(2.174) )
Demo program :
ISaGRAF WinCE ViewPAC CD-ROM:

\napdos\isagraf\vp-25w7-23w7\vb.net-2008-demo\wp_vb02 for R/W analog I/O

\napdos\isagraf\vp-25w7-23w7\vb.net-2008-demo\wp_vb03 for R/W internal long integer, Timer and
Real (floating-point) values.
Note :
The long integer & timer & real variable’s Network Address No. must occupy 2 No. in the ISaGRAF
project. (refer to
section 4.2 of “User’s Manual of ISaGRAF Embedded Controllers” or in the CD-ROM:
\napdos\isagraf\vp-25w7-23w7\english-manu\” User_Manual_I_8xx7.pdf”)