CLX to PanelView 550 via AIC+

[seneal]

I am trying to set up a CompactLogix L35E with a PanelView 550 (2711-K5A2) with the intent of trouble shooting the PLC program before I take it into the feild to be installed with an existing PanelView 550 (2711-K5A16). I've not had to get a CLX to communicate with an PanelView before so I've read up on the "PLC/SLC Messages" aliasing of the SLC variables for the CLX. I think I've done it correctly but I still have a PV "data errors on link" message. I see 00 workstation, 01 CLX and 02 PV in RSLinx on the DH485. I am wondering if it's the AIC+. Or am I still not getting the "PLC/SLC Messages" right? Thanks

 

[Ken Roach]

Archive those *.PBA and *.ACD files and post them as a ZIP file, and I'm sure the Forum members who use those routinely (me included) will be glad to have a look.

DH485 isn't the most common network setting for the CompactLogix serial port, but it certainly does work for things like PanelView Standard data acccess.

 

[seneal]

I figured I would try to eat the elephant one bite at a time. So, I'm just trying to send an integer from the PanelView to the PLC and an integer back from the PLC to the PanelView.

Here are my files.

Thanks.

 

[Ken Roach]

I see two things that you should change.

The first is in the PanelView communications configuration. Change the device type from CompactLogix to SLC-5/03 OS302.

The PanelView Standard has limited ability to access native ControlLogix-style Tags, but when using DH485 I prefer to go ahead and use SLC emulation all the way. Configure the PanelView as though it is talking to an SLC-5/03 and it will be none the wiser.

The second is the data format of the PanelViewInput tag in RSLogix 5000. Right now it's a DINT[32] array.

Because the PanelView will be addressing 16-bit Words (like in an SLC), the CompactLogix needs to have a corresponding INT[x] array so that the offsets match.

When the PanelView is reading "N7:10", the CompactLogix is responding with the 11th INT in the mapped array, which is the low word of PanelViewInput[5].

Change the array tag PanelViewInput to an INT[32] or even INT[255] array, and the offsets should work the way you expect.

 

[seneal]

Ken,

I made your sugested changes and crossed my fingers. But, now I get a Data errors on the link message. If I unplug my 1747-UIC I get a required network node(s) not found flashing. I have my CompactLogix connected to the AIC+ with a 1747-CP3 and am connected to the PanelView with a 1761-CBL-AS03. Do I need to go dig up a 2711-NC13?

Thanks for your help.

Seth

 

[Ken Roach]

PanelBuilder32 shows us that the PanelView 550 is Node 8, targeting CompactLogix at Node 1.

RSLogix 5000 confirms that the CompactLogix is Node 1.

The 1747-CP3 from the CompactLogix to the AIC+ is fine, as is the -AS03 from the AIC+ to the PanelView.

What node number is RSLinx and the 1747-UIC using ? How are they connected to the AIC+ ?

If the 1747-UIC was also Node 1, I would not expect you to be able to browse the CompactLogix with it in RSLinx, but it would explain the change in network behavior when you remove it. Hmm.

 

[seneal]

Ken,

I was doing searching online and I found that one of the reasons for a "data errors on the link message" is dirty 24VDC to the AIC+. So I dug up a Sola P/S and problems solved.

Thanks for all of you help. I'd still be scratching my head even with the new P/S.

Seth