Remote-processing BASIC 52 Uživatelský manuál stáhnout pdf (Strana 76)

RPBASIC-52 PROGRAMMING GUIDE

2-57

LINE# (Statement)

Syntax: LINE# line,data

Where: line = 101 to 125, is the digital I/O line connector number. (Line ranges may vary. Check

your ha rdwa re manual.)

data = ON, OFF, 0, or 1. See text below.

Function: Sets a specified line at the digital I/O connector high or low.

Mode: Command, Run

Use: LINE #10 2,0

Card: Basi c com man d available for all cards. line ranges are card dependent. Refer to hardw are manu al.

DESCRIPTION

LINE # addresse s the dig ital I/O conne ctor pins. line must be between 101 and 125. Line 102 is not valid (it

is the +5 V supply).

data is either ON, OFF, 0 or 1. ON is the same a s a 1 while OFF is a 0. '0' sets the line low w hile a '1' sets it

high. This is the opposite of the LINE command. Opto modules require a low , or '0' level to turn on. LINE

inverts data while LINE # does not. Using ON and OFF speeds up statement execution by about 20%.

LINE and LINE # ma y be us ed interchangeably in a program .

LINE, LINEB (function), LINE, LINEB (statement), CONFIG LINE

ERRORS

BAD ARGUMENT When line is out of range

BAD SYNTAX When # is used for on card opto rack

EXAMPLE

The following example shows how different data is returned.

10 LINE 118,OFF Turns off external opto module 18.

20 LINE #118,0 Sets digital I/O connector line 18 to 0.

30 PRINT LINE(118),LINE#(118)

run

1 0

The function LINE(118) returns a 1 because that is the condition to turn off a module.

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 162 163

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Remote-processing BASIC 52 Uživatelský manuál Strana 76