Mitsubishi Electric MELDAS C6 Interface Manual page 178

B con-
Signal name
tact
—
M CODE DATA 1
[Function]
When M function is specified, value following address "M" can be identified. The M code data
output from the controller is a max. 8-digit BCD code.
[Operation]
"M code data 1" are updated when:
(1) "M**" is issued in automatic operation (memory or MDI).
(2) "M**" in fixed cycle causes motion during execution of the fixed cycle.
(3) "M**" is executed by manual numerical command input.
"M code data 1" is also updated when an "M single output command" is issued even during M
function lock. The data is kept unchanged after "M function finish" signal (FIN1, FIN2) is sent back.
"Reset" or "Emergency stop" does not clear the data.
[Cautions]
(1) Commands can be defined up to four in a block with parameters. (One command for the system
when the built-in PLC is not available.) When plural M functions are placed in one block, the
signals are output in the order at programming.
M03 M08
(2) M98 (call subprogram), M99 (return to main program), etc. are processed within the CNC, and
not output as M code data.
[Related signals]
(1) M function strobe 1 ∼ 4 (MF1~MF4: X644~X647)
(2) M code data 2, 3, 4 (R206/207, R208/209, R210/211)
B con-
Signal name
tact
—
M CODE DATA 2
[Function]
When M function is specified, value following address "M" can be identified. The M code data
output from the controller is a max. 8-digit BCD code.
[Operation]
"M code data 2" are updated when:
(1) Two or more M functions are placed in one block in automatic operation (memory or MDI).
For other details, refer to the section on "M CODE DATA 1".
6. EXPLANATION OF INTERFACE SIGNALS
6.2 PLC Input Signals (Data Type: R***)
Signal
abbreviation
M80 M82;
Output to M code data 1
Output to M code data 2
Output to M code data 3
Output to M code data 4
Signal
abbreviation
1st system
R204, 205
1st system
R206, 207
6-2-18
2nd system 3rd system
R304, 305 R404, 405
2nd system 3rd system
R306, 307 R406, 407