
16. INTERFACES RELATED TO Series 20i MACRO
B--63003EN--1/02
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Timing of signals for machining guidance--based automatic operation
The following descriptions use the timing chart shown below as an
example.
(2)
(7)
(5)
(6)
(3)
(1)
Start
Manual operation
MD1, MD2, and MD4
(mode select signals)
(PMC→CNC)
MMEM (mode selection configuration signal)
(CNC→PMC)
ST (automatic operation start signal)
(PMC→CNC)
STL (automatic operation sta rting signal)
(CNC→PMC)
DM30 and DM02 (M decode signals)
(CNC→PMC)
GSP (machining guidance s top signal)
(MACRO→PMC)
ERS (external reset signal)
(PMC→CNC)
RST (reset--in --progress signal)
(CNC→PMC)
GST (machining guidance start signal
(MACRO→PMC)
GMN0 to GMN4
(machining guidance menu select signal)
(PMC→MACRO)
GMD0 toGMD4
(machining guidance mode signal)
(MACRO→PMC)
(4)
(5)
Manual
operation
Automatic operation mode
Automatic
operation
(executable
macro)
End
(1)When the input end key is pressed after machining data is input,
MACRO sets the GST signal to 1. When the GST becomes 1, the
PMC sets the mode select signal to automatic operation mode.
(2)On confirming that the automatic operation mode is selected, the CNC
sets the MMEM signal to 1.
(3)When the MMEM signal becomes 1, the PMC turns on the automatic
operation start signal to request to start automatic operation.
(4)When the ST signal becomes 1, the CNC begins automatic operation,
starting operation based on the machining guidance execution macro.
(5)When the execution macro--based operation ends, M02 is output.
MACRO outputs the machining guidance stop signal GSP.
When the CNC outputs M02, the PMC sets the external reset signal
ERSto1toresettheCNC.
When the CNC is reset, MACRO clears the GST and GSP signals to
0.
(6)When the GST signal becomes 0, the PMC returns the mode select
signal to the state previous to 2 (manual).