Help Needed: Issue with CALL SR[3] in Main Program

Hello everyone,

I'm currently working on a large project that involves calling several programs from a main program. In this main program, I use CALL SR[3], where SR[3] is a string "TEST_1".

The TEST_1 program works perfectly when run independently. However, when I try to call it from the main program, it fails. I've triple-checked the SR[3] reference, but Roboguide isn't providing any clues about the issue. The log simply shows a "call program failed" message, and the execution stops there.

Has anyone encountered a similar problem or have any suggestions on what might be causing this issue?

Thanks in advance for your help!

Quote

Solution Found:

After thorough investigation and multiple attempts to resolve the issue, it has been determined that the problem was related to case sensitivity with String Registers. Even though the name of the program to call and the string register matched, the string register needed to be in all caps. It appears that every program is automatically "renamed" to an all-caps version of itself. Therefore, ensuring that the string register is in all caps resolves the issue.

Solved - the only issue was case sensitivity with String Registers.

Isn't motion group related to external axis? I'm doing some research but I can't find anything useful on program calls issues.

I can share the ATTR of the two pieces of code, are you talking about the "DEFAULT_GROUP" line?

The main file starts as follow:

!main program;

/ATTR
OWNER		= MNEDITOR;
COMMENT		= "";
PROG_SIZE	= 434;
CREATE		= DATE 22-02-07  TIME 17:11:58;
MODIFIED	= DATE 22-02-08  TIME 10:17:08;
FILE_NAME	= ;
VERSION		= 0;
LINE_COUNT	= 19;
MEMORY_SIZE	= 878;
PROTECT		= READ_WRITE;
TCD:  STACK_SIZE	= 0,
      TASK_PRIORITY	= 50,
      TIME_SLICE	= 0,
      BUSY_LAMP_OFF	= 0,
      ABORT_REQUEST	= 0,
      PAUSE_REQUEST	= 0;
DEFAULT_GROUP	= 1,*,*,*,*;
CONTROL_CODE	= 00000000 00000000;
LOCAL_REGISTERS	= 0,0,0;

One of the called files (TEST_1):

!TEST_1;

/ATTR
OWNER = SHIFT;
PROG_SIZE = 29445;
CREATE = DATE 00-00-00  TIME 00:00:00;
MODIFIED = DATE 00-00-00  TIME 00:00:00;
VERSION  = 0;
LINE_COUNT = 453;
MEMORY_SIZE = 95400;
PROTECT  = READ_WRITE;
DEFAULT_GROUP	= 1,*,*,*,*;
CONTROL_CODE = 00000000 00000000;

Quote from DS186

I don't know the program structure of your programs, e.g. if you are using instructions in both programs that require a motion group

The main program doesn't have any movement, just some calls and register operations.

Quote from DS186

If possible, deactivate the motion group in your calling program (main program) by setting the DEFAULT_GROUP from 1 to * and then try to run the program again.

Tried but nothing changed unfortunately.

This morning I tried inserting a CALL TEST_1 right before CALL SR[3]. The main program successfully call TEST_1 and when finally jumping to the next line (CALL SR[3]) I get the same error as before.

This doesn't really make sense, does it?

I checked several times for whitespaces in SR[3] as it happened to me before. I can't find anything wrong with the string though.

The actual file name is now "Test04_1", here's a screenshot of SR window in roboguide:

And here's the two lines of code in the main program (the first works, the second doesn't)

Quote from AnandTUD

Could it be because of Capital letters? Please try writing TEST04_1 in SR[3] and try again.

Shockingly enough, this seems to be the solution.. I'm confused though.

The main code is Call Test04_1 which in roboguide shows as CALL TEST04_1 (all capital letters) and correctly calls the program file named "Test04_1.ls".

Nevertheless if i Call SR[3] and SR[3] = Test04_1 it won't work unless I replace SR[3] with SR[3] = TEST04_1

I need to dive deeper on how Fanuc handles case sensitivity, but it seems that String Registers are case sensitive while .ls programs names and calls inside of a program are not.