Rockwell-automation 2708-NBD VBASIC Language Development Kit Manual de usuario descargar pdf (Pagina 69)

A–B

Appendix

C–1

Application Library Subroutines

In ENV.BAS and ENVPC.BAS

OpenLINX Opens all devices to be used by low level I/O routines. . . . . .

TestEvent% Tests for an event. . . . . .

Read Event% Waits for an event. . . .

Send Sends a record directly to the host. . . . . . . . . . .

SendQue Sends a record indirectly to the host through the queue. . . . . . . .

SetLINE Sets the state of the control line. . . . . . . .

SetLED Turns a workstation keyboard LED on or off. . . . . . . . .

SendCom Sends a record to the comm line. . . . . . .

Set DTR Sets the state of Data Terminal Ready. . . . . . . .

SetRTS Sets the state of Request To Send for a comm port. . . . . . . . .

GetDSR% Gets Data Set Ready status for a comm port. . . . . . .

PENDING% TRUE if Send will result in a pause.. . . . .

MEMFULL% TRUE if less than 1024 bytes remain in RAM. . . .

ONLINE% TRUE when ONLINE to the network. . . . . .

GetDATE$ Translates DATE$ into standard form (MM/DD/YYYY). . . . . .

GetTIME$ Translates TIME$ into standard form (HH:MM:SS). . . . . .

In READ.BAS

CL1 Clears the top line of the display and homes cursor. . . . . . . . . . . .

CL2 Clears line 2 and left justifies cursor. . . . . . . . . . . .

PC1 Prints a string centered on line 1. . . . . . . . . . . .

PC2 Prints a string centered on line 2. . . . . . . . . . . .

ReadFlush Flushes the keyboard buffer. . . . . . .

ReadStrField% Edit a string field on the display. . .

ReadStr% Simple edit a string on the screen. . . . . . .

ReadNumSTR% Simple edit of string of numeric characters. .

ReadPassword% Inputs a password from the keyboard. .

ReadYN% Wait for a YES/NO response from user. . . . . . .

ReadInt% Input an integer value from the keyboard. . . . . . .

ReadReal% Input a real value from the keyboard. . . . . .

ReadLong% Input a long value from the keyboard. . . . .

In MENU.BAS

Menu% Displays a menu and waits for a selection. . . . . . . . .

LogE! Returns the natural log of a value. . . . . . . . . .

Log10! Returns the base 10 log a value. . . . . . . . .

Exponential! Returns e to the x. . . . .

Power! Relturns x to the power of y. . . . . . . . .

SquareRoot! Returns the square root of x. . . . .

CubeRoot! Returns the cube root of x. . . . . .

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 83 84

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Rockwell-automation 2708-NBD VBASIC Language Development Kit Manual de usuario Pagina 69

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