FSC using Softlogix

I set up a structure (TOTE) with two elements: ID of type long; DSTN of type integer. I need to search for the ID. RSLogix will allow the entry of the parameters but when the rung is submitted for conversion, the '#' is gone from the structure part. That is, I enter:

#TOTE12:0.ID = TOTE15:0.ID
^- file designator

which then gets converted to:

TOTE12:0.ID = TOTE15:0.ID
^- file designator removed

I can find nothing in HELP which addresses this. Should I not be able to perform file operations on structures? Has anybody else tried this?

I did something similar a few years back. In my case, I was searching for a match with a string from a bar code. FSC wasn't an option in that case and I used a for/next loop and indirect addressing on the UDT element to do ascii compares.
The For/Next loops execute very quickly in SoftLogix5 (unlike the hardware version).

Hi Doug,
Just from looking at your post I have come to the conclusion that the file indicator in this case is lost. The reason for this as I see it is that you have declared the destination to be TOTE15:0.ID and have made it equal to #TOTE12:0.ID. So my next question to you is.. do you think the system can determine which variable of #TOTE12:0.ID file is = to TOTE15:0.ID?

Just an old mans thoughts aloud,

Bitmore

Bitmore said:

...do you think the system can determine which variable of #TOTE12:0.ID file is = to TOTE15:0.ID?

Click to expand...

Hello, Bit

It works with other file types:

+--FSC------------------------------------+

| File SRCH/CMP                           |

| CNTRL  R6:0                             | 

| Len = 10                                |

| Pos = 0                                 |

| Mode = ALL                              |

| Expression #TOTE12:0.ID = TOTE15:0.ID   |

+-----------------------------------------+

Just substitute something like this: Exp #N10:0 N9:1. It's supposed to: start at POS, test ALL of the specified elements in the file #TOTE12:0.ID one by one against the argument TOTE15:0.ID on each invocation. For some reason, the compiler strips off the '#' character so I can't do a true file operation.

I have contrived a search routine to do what I want using the 'bits and pieces' approach, it'd just be so much easier if the built in FSC worked.

I'm probably just missing something simple.