Fagor 8025 t cnc User Manual
- 4 -
1.2.3 DENYING ACCESS TO THE EDITOR MODE VIA PLCI
Machine parameter "P621(7)" indicates whether this feature is available or not.
P621(7) = 0
This feature is not available.
P621(7) = 1
This feature is available.
When using this feature, access to the editor mode at the CNC depends on the status of PLCI output O26, as well as
on the current conditions (protected memory, number of the program to be locked).
on the current conditions (protected memory, number of the program to be locked).
O26 = 0
Free access to the editor mode (it is protected by current conditions).
O26 = 1
Denied access to the editor mode.
1.2.4 SPINDLE CONTROLLED VIA CNC OR VIA PLCI
From this version on, the spindle analog output may be set either by the CNC or by the PLCI. Machine parameter
"P621(7)" indicates whether this feature is available or not.
"P621(7)" indicates whether this feature is available or not.
P621(7) = 0
This feature is not available
P621(7) = 1
This feature is available
Setting the spindle analog output via PLCI
To do this, use the combination: M1956 - R156.
Register R156 sets the spindle analog output in units of 2.442 mV. (10 / 4095)
R156 = 0000 1111 1111 1111
(R1256=4095)
= 10V.
R156 = 0001 1111 1111 1111
= -10V.
R156 = 0000 0000 0000 0001
(R1256=1)
= 2.5 mV.
R156 = 0001 0000 0000 0001
= -2.5 mV.
In order for the CNC to assume the value allocated to register R156, one must activate mark M1956 as described
in the PLCI Manual (section 5.5.2. Writing internal CNC variables).
in the PLCI Manual (section 5.5.2. Writing internal CNC variables).
Spindle controlled either by the CNC or by the PLCI
The CNC may have two internal spindle analog outputs, that of the CNC itself and the one set by the PLCI.
Use PLCI output O27 to "tell" the CNC which one of them to output.
O27 = 0
Spindle analog output set by the CNC itself.
O27 = 1
Spindle analog output set by the PLCI (combination: M1956-R156).
1.3 READING INTERNAL CNC VARIABLES
From this version on, the PLCI and the PLC64 have access to more internal CNC information.
With the PLCI, there is no need to activate a mark to access this information. The CNC itself updates this information
at the beginning of each PLCI cycle scan.
at the beginning of each PLCI cycle scan.
With the PLC 64, the corresponding mark must be consulted every time a CNC variable is to be checked.
The CNC information now accessible is:
Real S in rpm (REG119 at the PLCI, M1919 at the PLC64)
Not to be mistaken with R112 which indicates the programmed Spindle speed (S).
It is given in rpm and in hexadecimal format. Example: S 2487 R119= 967
It is given in rpm and in hexadecimal format. Example: S 2487 R119= 967
Number of the block in execution (REG120 at the PLCI, M1920 at the PLC64)
It is given in hexadecimal format. Example: N120 R120= 78
Code of the last key pressed (B0-7 REG121 at the PLCI, Not available at the PLC64)
Not to be mistaken with register R118 which also indicates the code corresponding to the last key pressed,
but—
but—
When pressing a key, both registers have the same value; but
the data in R121 is only kept there for one cycle
scan whereas R118 keeps its value until another key is pressed
.
When pressing the same key several times, (for example: 1111):
R121 will show code "1" four times (once per cycle scan).
R118 will always show the same value, thus not being able to tell whether the "1" key has been pressed once
or more times.
R118 will always show the same value, thus not being able to tell whether the "1" key has been pressed once
or more times.
The key codes are listed in the appendix of the PLCI manual.