adccommunitymod (AutomationDirect) asked a question.
Created Date: August 02,2010
Created By: sandhillcrane
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So, I'm venturing into a bit of the unknown here after cutting my teeth on a Click project. I need to replace an existing 30+ pc based shaft monitoring system. Prox switches and power are in place, I just need to update the Cpu and display. The way I see to do this is multiple h2-ctrio's, to reach my number of inputs. Anybody have a different idea or am I off base? I can then program a range for each machine to run in and an alarm if it falls out of that range. Any help is extremely appreciated.
Created Date: August 02,2010
Created by: KPrice
sandhillcrane, we have used the H2-CTRIOs on a number of projects, and they work great. I assume the Click you mentioned was for another project, because the H2-CTRIO works in the DL205 PLC. So yes, the DL205, CTRIOs, and a C-more touch panel can read your hi-speed inputs and display. And yes, you can setup alarm conditions for your count ranges.
Also, the DL06 includes hi-speed inputs in the PLC and also offers the H0-CTRIO. You'll want to check your frequency specs. The H0-CTRIO can read up to 100kHz. But with your prox switches, I'll bet you 're well below this. Sound like a fun project.
Created Date: August 02,2010
Created by: KPrice
sandhillcrane, after re-reading your post, by "30+ pc based shaft monitoring system ", do you mean 30+ year-old personal computer (PC) system? Or 30+ pc (piece) meaning 30 prox switches?
Created Date: August 02,2010
Created by: sandhillcrane
there are 30+ individual inputs or motors to monitor. It was pc based and brand new about 16 years ago. The old system scrolls thru the pages, which I will have to see if the cmore will do or not. If not, I will put them all on one page and light them green for in range and then alarm them. Thanks for your input.
Created Date: August 02,2010
Created by: KPrice
The C-more screens can be changed by the PLC and (of course) the operator can also change the screens. Depending on the size C-more, and your display object size, you may be able to fit all your display on 1 screen. You could also make a "scroll screen " selector switch on the C-more that would allow the PLC to change screens automatically, on a time-basis for example. As far as your inputs, each CTRIO can input (8) switches, so you would need (4) CTRIOs. The H2-CTRIO needs 400ma @ 5V and the base can supply 2600 ma @ 5V, so you should be OK.
Created Date: October 03,2010
Created by: sandhillcrane
So Kprice, as I have begun to lay this out, what is the best way to configure the H2, as unassigned inputs to get to use all 8 of them, and store them in the 06 memory?
Created Date: October 04,2010
Created by: bcarlton
I believe that the H2CTRIO will only allow 4 counters. The other 4 inputs can be assigned as resets for the counters or individual inputs but are not routed to their own counters. The current value of the counters are automatically routed to V memory. You set the location.
Created Date: October 04,2010
Created by: KPrice
sandhillcrane, how did I get 8 counters? There are 8 inputs but only 4 counters. bcarlton is correct that you have up to 4 counters in the CTRIO using the Counter Function. The Counter Function is described in Chapter 4 of the CTRIO manual. You configure the CTRIO for the Counter Function using the CTRIO Workbench software utility program. After you assign your starting V locations, you can view the assigned locations by viewing I/O Map...
Created Date: October 04,2010
Created by: sandhillcrane
I haven't yet, but now i will. Reference your previous post on just needing four to get the 32 inputs, but after I read the chapter 4 info, I began to see that 4 modules would not do all the inputs. Looks like also I will have to go to an expansion unit to get all 8 units and an output module.
Created Date: October 04,2010
Created by: bcarlton
Note from the manual:
The H2-CTRIO cannot be used in DL205 local expansion bases or in Serial
Remote I/O bases.
Created Date: October 04,2010
Created by: sandhillcrane
so 32 inputs is the max you can get correct? what's the next option to expand past that?