main.lyx

CNC 的开放码,EMC2 V2.2.8版

</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

EQ NE GT GE LT LE
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

\end_inset 
</cell>
</row>
<row topline="true" bottomline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

AND OR XOR
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard


\emph on 
lowest
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\end_inset 


\layout Subsection

Functions
\begin_inset LatexCommand \label{sub:Unary-Operation-Value}

\end_inset 


\layout Standard

A function is either 
\begin_inset Quotes eld
\end_inset 


\family typewriter 
ATAN
\family default 

\begin_inset Quotes erd
\end_inset 

 followed by one expression divided by another expression (for example 
\begin_inset Quotes eld
\end_inset 


\family typewriter 
ATAN[2]/[1+3]
\family default 

\begin_inset Quotes erd
\end_inset 

) or any other function name followed by an expression (for example 
\begin_inset Quotes eld
\end_inset 


\family typewriter 
SIN[90]
\family default 

\begin_inset Quotes erd
\end_inset 

).
 The available functions are shown in table 
\begin_inset LatexCommand \ref{cap:Functions}

\end_inset 

.
 Arguments to unary operations which take angle measures (
\family typewriter 
COS
\family default 
, 
\family typewriter 
SIN
\family default 
, and 
\family typewriter 
TAN
\family default 
) are in degrees.
 Values returned by unary operations which return angle measures (
\family typewriter 
ACOS
\family default 
, 
\family typewriter 
ASIN
\family default 
, and 
\family typewriter 
ATAN
\family default 
) are also in degrees.
\layout Standard

The 
\family typewriter 
FIX
\family default 
 operation rounds towards the left (less positive or more negative) on a
 number line, so that 
\family typewriter 
FIX[2.8] =2
\family default 
 and 
\family typewriter 
FIX[-2.8] = -3
\family default 
, for example.
 The 
\family typewriter 
FUP
\family default 
 operation rounds towards the right (more positive or less negative) on
 a number line; 
\family typewriter 
FUP[2.8] = 3
\family default 
 and 
\family typewriter 
FUP[-2.8] = -2
\family default 
, for example.
 
\layout Standard


\begin_inset Float table
placement H
wide false
collapsed false

\layout Caption

Functions
\begin_inset LatexCommand \label{cap:Functions}

\end_inset 


\layout Standard
\align center 

\begin_inset  Tabular
<lyxtabular version="3" rows="14" columns="2">
<features>
<column alignment="center" valignment="top" leftline="true" width="0">
<column alignment="center" valignment="top" leftline="true" rightline="true" width="0">
<row topline="true" bottomline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

Function Name
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Function result
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

ATAN[Y]/[X]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Four quadrant tangent
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

ABS[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Absolute value
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

ACOS[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Inverse cosine
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

ASIN[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Inverse sine
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

COS[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Cosine
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

EXP[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

e raised to the given power
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

FIX[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Round down to integer
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

FUP[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Round up to integer
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

ROUND[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Round to nearest integer
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

LN[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Base-e logarithm
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

SIN[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Sine
\end_inset 
</cell>
</row>
<row topline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

SQRT[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Square Root
\end_inset 
</cell>
</row>
<row topline="true" bottomline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard

TAN[arg]
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard

Tangent
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\end_inset 


\layout Section

Comments
\begin_inset LatexCommand \index{G Code Comments}

\end_inset 


\begin_inset LatexCommand \label{sec:Comments}

\end_inset 


\layout Standard

Printable characters and white space inside parentheses is a comment.
 A left parenthesis always starts a comment.
 The comment ends at the first right parenthesis found thereafter.
 Once a left parenthesis is placed on a line, a matching right parenthesis
 must appear before the end of the line.
 Comments may not be nested; it is an error if a left parenthesis is found
 after the start of a comment and before the end of the comment.
 Here is an example of a line containing a comment: 
\family typewriter 

\begin_inset Quotes eld
\end_inset 

G80 M5 (stop motion)
\family default 

\begin_inset Quotes erd
\end_inset 

.
 Comments do not cause a machining center to do anything.
\layout Section

Messages
\begin_inset LatexCommand \index{G Code Messages}

\end_inset 


\begin_inset LatexCommand \label{sub:Messages}

\end_inset 


\layout Standard

A comment contains a message if 
\begin_inset Quotes eld
\end_inset 


\family typewriter 
MSG,
\family default 

\begin_inset Quotes erd
\end_inset 

 appears after the left parenthesis and before any other printing characters.
 Variants of 
\begin_inset Quotes eld
\end_inset 


\family typewriter 
MSG,
\family default 

\begin_inset Quotes erd
\end_inset 

 which include white space and lower case characters are allowed.
 The rest of the characters before the right parenthesis are considered
 to be a message.
 Messages should be displayed on the message display device.
 Comments not containing messages need not be displayed there.
 
\layout Section

Probe Logging
\begin_inset LatexCommand \index{Probe Logging}

\end_inset 


\begin_inset LatexCommand \label{sub:Probe-Logging}

\end_inset 


\layout Standard

A comment can also be used to specify a file for the results of G38.2 probing.
 See section 
\begin_inset LatexCommand \ref{sub:G38.2:-Straight-Probe}

\end_inset 

.
\layout Standard

Often, general logging is more useful than probe logging.
 Using general logging, the format of the output data can be controlled.
\layout Section

Debugging Messages
\begin_inset LatexCommand \index{G Code Debugging Messages}

\end_inset 


\begin_inset LatexCommand \label{sub:Debugging-messages}

\end_inset 


\layout Standard

Comments that look like: 
\family typewriter 
(debug, rest of comment)
\family default 
 are the same as comments like 
\family typewriter 
(msg, rest of comment)
\family default 
 with the addition of special handling for parameters.
\layout Standard

Comments that look like: 
\family typewriter 
(print, rest of comment)
\family default 
 are output to stderr with special handling for parameters.
\layout Section

Parameters in special comments
\layout Standard

In the DEBUG, PRINT and LOG comments, the values of parameters in the message
 are expanded.
\layout Standard

For example: to print a named global variable to stderr (the default console
 window) add a line to your gcode like...
\layout LyX-Code

(print,endmill dia = #<_endmill_dia>)
\layout Standard

Inside the above types of comments, sequences like 
\family typewriter 
#123
\family default 
 are replaced by the value of the parameter 123.
 Sequences like 
\family typewriter 
#<named parameter>
\family default 
 are replaced by the value of the named parameter.
 Remember that named parameters will have whitespace removed from them.
 So, 
\family typewriter 
#<named parameter>
\family default 
 is the same as 
\family typewriter 
#<namedparameter>
\family default 
.
 
\layout Section

Repeated Items
\layout Standard

A line may have any number of G words, but two G words from the same modal
 group (see Section 
\begin_inset LatexCommand \ref{sec:Modal-Groups}

\end_inset 

) may not appear on the same line.
\layout Standard

A line may have zero to four M words.