iFix access element of array

Hi,

I'm trying to get iFix 5.8 to access DINT and INT array elements from a ControlLogix.

My tag: test_dint
Data Type: DINT
Array Length: 100

My tag: test_int
Data Type: INT
Array Length: 100

I want to be able to assign an iFix tag to a specific array element, i.e. TEST_ARRAY_ELEMENT to test_dint[1].
When I do this, my Curr Value shows "????"

I have tried using @long and @float after the tag and neither seems to work.

Any ideas?

What I/O server are you using? Software Toolbox?

Forgot to specify sorry, I am using IGS driver, 7.520a

http://www.plctalk.net/qanda/showthread.php?t=68424

http://www.plctalk.net/qanda/showthread.php?t=50562

The above threads may help you out.
Regards,

Thanks Garry,

I actually stumbled on those 2 posts before creating my own. I used the example to verify I can acess the bit test_dint[1].2 in a array of DINTs. But for some reason I can't access the entire DINT, test_dint[1].


Also strange is using the syntax I can access an array of INTs fine but not an array of DINTs.

IGS driver is Kepware. Read up on how Kepware's Logix driver handle naming convention.

https://www.kepware.com/en-us/products/kepserverex/drivers/allen-bradley-controllogix-ethernet/

on the iFix database side, there are many data type you can use. If you want to specify to the exact array element you can use AI or AA. If you use AR, then you can define an entire array with one database element then point to the element with extension.

Thanks harry. From the documentation on kepwares site I ended up getting the following to solve my issue:

For INT or DINT arrays in iFix:
-TEST_INT[0]{3}@WORD,1000 = an array of 3 starting at element 0.
-TEST_INT[1]@WORD,1000 = element 1 in the array
-TEST_DINT[2]{3}@WORD,1000 = an array of 3 starting at element 2.
-TEST_DINT[2]@WORD,1000 = element 1 in the array

Looks like my issue is I should've been using @word instead of @long.