Yaskawa SMC–4000 - Manual (Page 342)

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SMC–4000 User Manual
8 Input and Output of Data
Sending Messages
Messages may be sent to the bus using the MG (Message) command. This command sends specified text
and numerical or string data from variables or arrays to the screen.
Text strings are specified in quotes and variable or array data is designated by the name of the variable or
array. For formatting string variables, the {Sn} specifier is required where n is the number of characters, 1
through 6. Example:
MG STR {S3}
The above statement returns 3 characters of the string variable named STR.
Numeric data may be formatted using the {Fn.m} expression following the completed MG statement.
{$n.m} formats data in HEX instead of decimal. Example:
MG "The Final Value is", RESULT {F5.2}
The above statement sends the message:
The Final Value is xxxxx.xx
The actual numerical value for the variable, RESULT, is substituted with the format of 5 digits to the left
of the decimal and 2 to the right.
In addition to variables, functions and commands, responses can be used in the message command. For
example:
MG "Analog input is", @AN[1]
MG "The Position of X is", _TPX
The message command normally sends a carriage return and line feed following the statement. The
carriage return and the line feed may be suppressed by sending {N} at the end of the statement. This is
useful when a text string needs to surround a numeric value.
Example:
When #A is executed, the above example will appear on the screen as: The speed is 50000 counts/sec
The MG command can also be used to configure terminals. Here, any character can be sent by using {^n}
where n is any integer between 1 and 255.
Example:
MG {^07} {^255} sends the ASCII characters represented by 7 and 255 to the bus.
#A Label
JG 50000;BGX;ASX Jog, Begin, After Speed
MG "The Speed is", _TVX {F5.1} {N} Message
MG "counts/sec" Message
EN End Program