
19. INTERFACES RELATED TO Series 20i MACRO
B–63523EN–1/03
2018
Playback signal timing
The following descriptions use the timing chart shown below as an
example.
(1)When the playback button is pressed, the PMC sets the PLB signal to
1 to request MACRO to make preparation for playback execution.
(2)When the PLB signal becomes 1, MACRO sets the GST signal to 1
after finishing preparation for playback.
(3)When the GST signal becomes 1, the PMC enters the MEM mode and
turns on the start signal ST, thus starting playback machining.
(4)When machining ends, the NC outputs M02, so the PMC sets the
external reset signal ERS to 1 for causing a reset.
(5)When a reset occurs, the PMC resets the PLB signal to 0, and MACRO
resets the GST signal to 0, thus terminating playback.
Playback button
(2)
(3)
(4)
(5)
(4)
(1)
Playback machining
PLB (playback)
(PMC³MACRO)
GST (guidance start)
(MACRO³PMC)
Mode
(PMC³NC)
ST (start signal)
(PMC³NC)
M02 (machining end)
(NC³PMC)
ERS (external reset)
(PMC³NC)
RST (reset in progress)
(NC³PMC)
(3)
MEM mode
M code teaching
M code teaching M03 to M06, M08, and M09:
When these signals are 1, they save M codes in memory.
#7
M09R959
#6
M08
#5
M06
#4
M05
#3
M04
#2
M03
#1 #0