3. - Fagor Automation

Operating manual
9.
PLC
Logic analyzer
CNC 8035
·T· MODEL
(SOFT V16.3X)
·182·
9.10.2 Selection of variables and trigger conditions
Before requesting a trace, one must define the variables to be analyzed, the trigger type and
conditions and the time base to be used to show the captured values.
To do so, the following softkey options are available: "VARIABLE SELECTION", "TRIGGER
CONDITION" and "TIME BASE".
Select variables
This option may be used to select up to 8 variables that will be analyzed later on.
It shows a cursor on the variables area that may be moved using the [] [] keys. Also, the softkeys
will show the following options:
"EDIT" softkey
This option may be used to edit a new variable or modify one of the currently defined variables.
Before pressing this softkey, use the cursor to select location to display that variable.
Once this option has been selected, the softkeys will change colors and they will appear over white
background showing the information corresponding to the type of editing possible at that point.
Any logic signal of the PLC (I3, B1R120, TEN 3, CDW 4, DFU M200, etc.) may be analyzed and
may be referred to by its name or its associated symbol. It is even possible to analyze logic
expressions, consisting of one or several consultations that must follow the syntax and rules used
in PLC equations.
M100 AND (NOT I15 OR I5) AND CPS C1 EQ 100
Although it is hard to understand the treatment of consultations and expressions in a logic analyzer,
it must be borne in mind that this utility may be very interesting to know the status of a complete
expression.
No more than 16 flank detecting instructions (DFU and DFD) can be used between all the definitions
of variables and the selected trigger condition.
Pressing the [ESC] key deletes the variable being edited. From this point on, the variable may be
edited again. Once the variable has been edited, press [ENTER]. The new edited variable will be
shown in the location occupied by the cursor in the variables area.
It shows the first 8 characters of the selected variable, although the variable or expression used to
define that variable has more characters.
The cursor will occupy the position of the next variable and it will show it in the editing area, thus
being possible to continue editing new variables..
The editing area must be empty in order to quit this option. If it's not, press [ESC] to delete that
information and then press [ESC] again.
"DELETE" softkey
This option may be used to delete a variable.
Before pressing this softkey, select with the cursor the variable to be deleted.
Repeat these steps for each variable to delete more variables.