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
6-9
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UserGetReg_short
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UserGetReg_long
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UserGetReg_float
Description:
These functions are to get 16-bit short integer, 32-bit long integer & 32-bit float value from the specified
Modbus network address.
Syntax:
UserShare. UserGetReg_Short (ByVal
iUserAddress As System.UInt16, ByRef iStatus As Integer) As
Byte
UserShare. UserGetReg_Long (ByVal
iUserAddress As System.UInt16, ByRef iStatus As Integer) As
Byte
UserShare. UserGetReg_Float (ByVal
iUserAddress As System.UInt16, ByRef iStatus As Single) As
Byte
Parameter:
iUserAddress : Specify the Network Address of Variable (1 to 8191)
iStatus : Get the short or long integer or float value.
Example:
Dim float_val As Single
Dim short_val As Int16
Dim long_val As Int32
‘ Get float value of the variable of Modbus Network Address “7”.
UserShare.UserGetReg_float(Convert.ToUInt16(7), float_val)
‘ Get long value of the variable of Modbus Network Address “9”.
UserShare.UserGetReg_long(Convert.ToUInt16(9), long_val)
‘ Get short value of the variable of Modbus Network Address “11”.
UserShare.UserGetReg_short(Convert.ToUInt16(11), short_val)
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 & float 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”)