adccommunitymod (AutomationDirect) asked a question.
C-More 15 inch with GE 9030
Created Date: October 30,2008
Created By: jneill
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:mad:I have a C-More 15 inch panel I have gotten it to read %m internal coils, but cannot get it to write to them or to %R registers any help would be appreciated James Neill
Created Date: October 31,2008
Created by: Steve Bailey
Is there any password protection set in the PLC?
Created Date: October 31,2008
Created by: jneill
C-More 15 inch with GE 9030
There is none that I am aware of, this is a project that was handed to me. How could I tell if there is any password protection applied?:eek:
Created Date: October 31,2008
Created by: Steve Bailey
Which PLC programming software are ypu using? In Logicmaster, from the main menu, hit F3 (PLC Control & Status) then F2 (Password Protection).
With VersaPro, hit SHIFT + F4 to open the status window, then look at the "Protection " tab.
With Machine Edition, under the "Target " menu, select "Online Commands ", then "Show Status ", then the "Protection " tab.
Created Date: November 02,2008
Created by: jneill
I am using Machine Edition, I have the passwords disabled in the cpu properties. I will check as you have suggested, but should I re-enable use passwords under the cpu properties, by the way the cpu is a 363.
Created Date: November 02,2008
Created by: Steve Bailey
Is there anything in ladder logic that could be overwriting whatever the C-More is trying to write? To find out, go online with Machine Edition and try to toggle the same %M bit that your C-More won't write to or write a value to the %R register that doesn't get the data from the C-More.
Does the C-More display an error message when you try to write to the PLC? Have you checked the C-More's error log? Are there any error messages in the PLC's error log?
Created Date: November 02,2008
Created by: jneill
I have toggled the %M bits and also can write values using Machine Edition. when I attempt to write to the plc with the C-More I get nothing as though it is 'nt even connected. The %M variables are on color coded buttons "change color with state " they do not even change there color. It is really baffleing because as I stated earlier I can read all the values in C-More I just can't seem to write to the plc at all. Ohh and no errors of any kind either in C-More or the plc.
Created Date: November 03,2008
Created by: Steve Bailey
Since you have a CPU363, you should be able to have Machine Edition connected at the same time as the C-More.
Now I'm going to assume that you have an integer tag in the C-More's tag database addressed to %Rxxx and that you have a numeric data entry object in the C-More that uses that tag for both the display tag and the data entry tag. You 're telling me that when the C-More is connected and you write a valid value into %Rxxx with Machine Edition, that value immediately shows up on the C-More screen, but when you enter a value from the C-More, you do not see that value in the %Rxxx location in a Machine Edition reference view table.
I'm a little concerned with this statement: The %M variables are on color coded buttons "change color with state " they do not even change there color
How are you sure you are reading the %M memory if the buttons don't change color?
Created Date: November 03,2008
Created by: jneill
With the machine running, I get feedback "Such as motor rpm, current ect " on the C-More panel from the %R variables. The %M variables are used to turn these motors on/off, they are discrete variables. There is also an indicator "Light " that indicates the state of the %M internal coil. Pressing a "Start Button " ie a momentary discrete %M variable with a delay on the release of 1 sec should cause the "Start Button " on the C-More to show a highlighted color. This does not happen "It does on the simulation ", and of course the motors do not start or stop such as the application might be at that time.
Created Date: November 03,2008
Created by: Steve Bailey
It would be helpful to see both the setup of the C-More and the ladder logic in the PLC. If you make up a zip file containing both the C-More file and the Machine Edition folder and attach it, I'll take a look to see if I can spot anything that could be causing your problem.
If I'm interpreting correctly you have a pushbutton object on the C-More that is supposed to write to a %M address in the PLC. The pushbutton is set up for "momentary " operation. You also have an indicator object set up to display the same %M address. Where I'm getting confused is your comment abut "a delay on the release of 1 sec ". That implies that there is a timer in the PLC that is supposed to keep something on after the pushbutton inout goes off.
Please clarify in as much detail as possible. For now, let's stick to the problems with the %M addresses.
Created Date: November 03,2008
Created by: OpZed
"Release Delay " is a pushbutton feature when configured for momentary on. For debugging this it would be better to use a normal toggle type instead.
I'm not sure that you ever addressed the questions about checking that the address you are writting to from C-more is not being used as an output in the PLC code. C-more can't over ride a value being set from rung code, so give it a seperate memory address and you can integrate the real logic later. Also, are you sure that your not using Tag Variables in the PLC? C-more can only write to the fixed memory tables. Instead of looking in your PLC code to monitor what C-more is doing, use the viewer for looking directly at the data table.