Data Links in RSLogix 5000 Ver.16

[Automation1]

If you define a data link for a drive that is type Dint, do you have to leave the next open field undefined? Is each data link field only a word?



Thanks in advance.

 

[Ken Roach]

Which drive and which network are you using ? And which versino of RSLogix 5000 (v16 has significant changes in this regard).

Ordinary DataLinks for 16-bit drives (1336+, PF70, etc) have two 16-bit words (A1, A2, B1, B2, C1, C2) per DataLink so you can transfer two parameters per enabled DataLink.

When you use a 32-bit drive like the 700VC or 700S, you only get the choice of A, B, C, D. You don't have to leave any spaces or skip any DataLinks.

 

[Automation1]

V16.03.00 (CPR 9)

I am setting up the following drives on a ControlNet network:
1336E Impact
1336 Plus
PowerFlex 700 Vector


If we look at the PowerFlex 700 and I set up DataLink A. DataLink A has two fields in which I can define parameters. What if the two fields I define are type Dint for just DataLink A?

Thank you.

 

[Ken Roach]

I might have to eat my words on that one.... I haven't used 32-bit DataLinks in a while. I'm going to do a little research.

 

[Ken Roach]

Ignore my previous statements, because they are incorrect.

Here's the sanity check: Knowbase Answer ID # 24072.

On a PowerFlex 700 Vector Control drive, a DataLink is 8 bytes: 2 x 32-bit parameters.

So fill in both DataLink A1 and A2 (and B1,B2,C1,C2,D1,D2) with parameter numbers in each one. The I/O connection will be properly sized to fit the 32-bit DataLinks.

 

[Automation1]

Thanks for the help.