DMC-40x0 Command Reference MG • 165
MG
FUNCTION: Message
DESCRIPTION:
The MG command sends data out the bus. This can be used to alert an operator, send instructions
or return a variable value.
ARGUMENTS: MG "m", {^n}, V {Fm.n or $m,n} {N} {Ex} {Pn} {Lx} where
"m" is a text message including letters, numbers, symbols or <ctrl>G (up to 72 characters).
{^n} is an ASCII character specified by the value n
V is a variable name or array element where the following formats can be used:
{Fm.n} Display variable in decimal format with m digits to left of decimal, and n to the right.
{Zm.n} Same as {Fm.n} but suppresses the leading zeros.
{$m.n} Display variable in hexadecimal format with m digits to left of decimal, and n to the
right.
{Sn} Display variable as a string of length n where n is 1 through 6
{N} Suppress carriage return line feed.
{Ex} Sends the message out the Ethernet handle x, where x is A,B,C,D,E,F,G or H
{Pn} Sends the message out the Serial port n, where n is 1 or 2 denoting Main or Auxilary.
{Lx} Sends the message to the LCD, where x is 1 or 2 for the top or bottom line of the LCD. The
message cannot be more than 8 characters when sent to the LCD screen, excess characters
will not be shown or stored.
The
LU command must be set to 0 for user messages sent to the LCD to appear.
Note: Multiple text, variables, and ASCII characters may be used, each must be separated by a
comma.
Note: The order of arguments is not important.
USAGE: DEFAULTS:
While Moving Yes Default Value -
In a Program Yes Default Format Variable Format
Command Line Yes
Controller Usage
ALL CONTROLLERS
EXAMPLES:
Case 1: Message command displays ASCII strings
MG "Good Morning" Displays the string
Case 2: Message command displays variables or arrays
MG "The Answer is", Total {F4.2} Displays the string with the content of variable 'Total'
in local format of 4 digits before and 2 digits after the decimal point.
Case 3: Message command sends any ASCII characters to the port.
MG {^13}, {^10}, {^48}, {^055} displays carriage return and the characters 0 and 7.
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