Data Formats; Tape Codes - Mitsubishi Electric MELDAS C6 Programming Manual

3. Data Formats

3. Data Formats

3.1 Tape codes

Function and purpose
The tape command codes used for this controller are combinations of alphabet letters (A, B, C, ...
Z), numbers (0, 1, 2 ... 9) and signs (+, –, / ...). These alphabet letters, numbers and signs are
referred to as characters. Each character is represented by a combination of 8 holes which may, or
may not, be present.
These combinations make up what is called codes.
This controller uses, the ISO code (R-840).
(Note 1) If a code not given in the tape code table in Fig. 1 is assigned during operation, program
(Note 2) For the sake of convenience, a semicolon " ; " has been used in the CNC display to
CAUTION
" ; " "EOB" and " %" "EOR" are explanatory notations. The actual codes are "Line feed" and
"%" for ISO, and "End of block" and "End of Record" for EIA.
Detailed description
EOB/EOR keys and displays
Key used
End of block
End of record
(1) Significant data section (label skip function)
All data up to the first EOB ( ; ), after the power has been turned on or after operation has been
reset, are ignored during automatic operation based on tape, memory loading operation or
during a search operation. In other words, the significant data section of a tape extends from
the character or number code after the initial EOB ( ; ) code after resetting to the point where
the reset command is issued.
error (P32) will result.
indicate the end of a block (EOB/IF) which separates one block from another. Do not use
the semicolon key, however, in actual programming but use the keys in the following
table instead.
Code used
ISO Screen display
LF or NL
%
4
3.1 Tape codes
;
%