Decimal Point Input - Mitsubishi Electric MELDAS C6 Programming Manual

5. Position Commands

5.3 Decimal point input

Function and purpose
This function enables the decimal point command to be input. It assigns the decimal point in
millimeter or inch units for the machining program input information that defines the tool paths,
distances and speeds. A parameter "#1078 Decpt2" selects whether type 1 (minimum input
command unit) or type 2 (zero point) is to apply for the least significant digit of data without a
decimal point.
Command format
Detailed description
(1) The decimal point command is valid for the distances, angles, times, speeds and scaling rate,
in machining programs. (Note, only after G51)
(2) In decimal point input type 1 and type 2, the values of the data commands without the decimal
points are shown in the table below.
Command
X1 ;
(3) The valid addresses for the decimal points are X, Y, Z, U, V, W, A, B, C, I, J, K, E, F, P, Q, and
R. However, P is valid only during scaling. For details, refer to the list.
(4) See below for the number of significant digits in decimal point commands. (Input command
unit cunit = 10)
MM
(milli-
meter)
INCH
(inch)
(5) The decimal point command is valid even for commands defining the variable data used in
subprograms.
(6) While the smallest decimal point command is validated, the smallest unit for a command
without a decimal point designation is the smallest command input unit set in the
specifications (1µm, 10µm, etc.) or mm can be selected. This selection can be made with
parameter "#1078 Decpt2".
(7) Decimal point commands for decimal point invalid addresses are processed as integer data
only and everything below the decimal point is ignored. Addresses which are invalid for the
decimal point are D, H, L, M, N, O, S and T. All variable commands, however, are treated as
data with decimal points.
. : Metric command
. : Inch command
Command unit system
cunit = 10
cunit = 1
Movement
command (linear) command (rotary)
Decimal
Integer Integer
part
0. to .000 to
99999. .999 99999.
.0000 to 99999.
0. to 9999.
.9999 (359.)
Type 1
–4
1 (µm, 10 inch, 10
0.1
Movement
Decimal
Integer
part
0. to .000 0. to
to.999 60000.
.0 to .999 0. to 2362.
21
5.3 Decimal point input
Type 2
°) 1 (mm, inch, °)
–3
1
Feed rate Dwell
Decimal
Integer
part
0. to
.00 to .99
99999.
.000 to
.0 to .99
.999
Decimal
part
.000 to
.999
.000 to
.999