
B–62073E–1/042. INTERFACE BETWEEN CNC AND PMC–NA OR NB
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2.3.2 Operation mode selection signals
These signals select the basic operation mode of the control unit. The operation mode selection signals include
the following:
– Input signals: Externally input to inform the control unit of a desired operation mode
– Output signals: Output from the control unit to show the current operation mode
Operation mode selection
Input signal Output signal Remark
Manual date input D MD
Common to
all system
Automatic
operation
Tape command T MT
Except
15–TT
Automatic
Memory command MEM MMEM
operation
Part program storage
& edit
EDT MEDT
Test mode TEST MTEST
Manual handle feed H MH Common to
Incremental feed S MS
a
system
Manual
operation
Manual continuous
feed
J MJ
Manual arbitrary angle
feed
AGJ MAGJ
Automatic/manual simultaneous
operation
MOVL MMOVL
Except
15–TT
Selecting the operation mode
When an input signal is set high, the corresponding operation mode is selected. While an operation mode is
selected, the corresponding output signal is high.
The Series 15 allows two or more operation modes to be selected at a time as listed in the table below.
Mode selection input signal
T D MEM EDT MVOL H S J AGJ
Automatic
operation
One of these signals is 1. 0 0 0 0 0
Manual
operation
0 0 0 0 0
One of these signals is 1, or
J and H are 1, or S and H
are1.
Automatic/
manual
simultaneous
operation
One of these signals is 1. 1
One of these signals
is 1, or J and H are 1,
or S and H are 1.
0
(0: Signal low 1: Signal high)
NOTE Signals marked with an asterisk () cannot be used in the Series 15–TT.
When the MOVL signal is set high, manual operation can be executed during automatic operation. When both
the J or S signal and the H signal are set high, the manual continuous feed or incremental feed and the manual
handle feed can be selected without switching the mode.
Operations from the MDI panel enable background editing at any time, irrespective of the operation modes de-
scribed above.
If the selection signals are entered in a different manner from those listed in the table above, the previous opera-
tion mode is kept for a certain time (T1). Then, neither automatic operation mode nor manual operation mode
is selected.
If the selection signals are entered in one of manners listed in the table within T1, the corresponding operation
mode is selected.