Recent Posts

51

Do-more CPUs and Do-more Designer Software / Re: MQTTPUB Gets Stuck

« Last post by AC on June 02, 2026, 02:03:11 PM »

I have these same issues on a regular basis. We use MQTTS and run two seperate elclipse mosquitto brokers for redundancy. Sometimes one or even both of them will lock up... but to get around this, i have learned that I can just set a timer that will trip a bit on the publish rung that will disconnect it with a debounce, then once it comes back it will take off.

I do have to say I would like to see the MQTT broker password obscured in the device settings.  I dont like the fact that another user can log in and then have the broker username and password by opening the device settings page.

52

Do-more CPUs and Do-more Designer Software / Re: Driver Error ST143

« Last post by MikeS on June 02, 2026, 08:39:27 AM »

Device-centric instructions all have a device driver that handles access to a shared resource in the CPU (memory, ports, etc.). 

ST143 will be ON if any device driver is reporting a runtime error, the most common cause is the On Error indication of a multi-scan instruction is ON. Use the System Status tab of the System Info utility to locate the instruction that is reporting the error.

53

Do-more CPUs and Do-more Designer Software / Re: Driver Error ST143

« Last post by Saturn_Europa1 on June 02, 2026, 06:56:32 AM »

I am getting this same error.  What is a device-centric instruction?

54

General Discussion / Re: New features wanted!! Apply here!

« Last post by Watermark_JS on May 29, 2026, 03:48:14 PM »

Glad to have you on the BRX train!  It's a great PLC and the Host Team is simply amazing.

55

General Discussion / Re: New features wanted!! Apply here!

« Last post by Barnic on May 29, 2026, 03:24:55 PM »

Yes. That would work. Thanks @Watermark_JS and @franji1.  In your next update it would be helpful if in the the help -> "Trendview Overview--> Creating a Trendview" to state that the PLC or simulator needs to be connected  in order for the file -> New etc to work and the feature not being greyed out? Thanks again.

56

General Discussion / Re: New features wanted!! Apply here!

« Last post by franji1 on May 29, 2026, 03:01:08 PM »

Try setting the trend up while connected to the DoMore Simulator?

This may be the best workaround.

The primary issue is that Trend View currently does not understand NOT being connected to the PLC.  Basically, a lot of code assumes there is an online connection.  A lot of code would need to become "mode" based (online vs. offline), which it was never designed for.  It probably is do-able, but not "high priority" feature.

I hope that @Watermark_JS idea is a good enough work around.

BTW, you can take an existing OFFLINE BRX project, then run it in the Simulator (it can't simulate everything, but you can at least get online).

Yeah, that worked.  I took an OFFLINE BRX project with a bunch of AXIS instructions, then hit the Simulator button in the Online toolbar (this writes the BRX disk project to the Simulator).  I was able to create a Trend View from an AXCONFIG instruction (even though AXIS is not supported in the Sim, the Sim can handle the memory, just not the actual high speed I/O functionality).

From there, I created a .TRN Trend Layout of $Axis1 stuff in that Trend View.  I then shut down Designer, then connected to a BRX PLC and was able to open the .TRN Trend Layout file - and it started monitoring!

I think that's a good 80% solution?

57

General Discussion / Re: New features wanted!! Apply here!

« Last post by Watermark_JS on May 29, 2026, 02:08:16 PM »

Try setting the trend up while connected to the DoMore Simulator?

58

General Discussion / Re: New features wanted!! Apply here!

« Last post by Barnic on May 29, 2026, 01:57:44 PM »

Hi. I am aware that a trend can't actually run unless there is something to trend ie being connected to a PLC. However, a trendview can't be set up (what is to be monitored) unless it is connected to the PLC. The variable names that need to be monitored/recorded are already in designer offline.  The logic I have is if I can program off line (and then run it later on the PLC), why can't I setup a trendview offline and then trend later when connected to a PLC. It seems the trendview-> New and Save as only work when connected, and not prior. Well the request is that trendview panes can be set up offline unless there is some technical reason why that's impossible. Thanks

(Sorry, I keep peeling the onion).

There are 2 other files that get "saved" with your .dmd project.  It's a Workspace (.wsp) and Designer Layout (.dlo) that saves the Trend View details so that any opened Trend Views get saved to THOSE files, and then would return the next time you opened up your project file (as part of the Designer LAYOUT).

That's probably close to what you are looking for?  But that is done "implicitly" by Designer that is related to the GUI - it's NOT part of the actual .dmd "disk project" file itself.

59

General Discussion / Re: New features wanted!! Apply here!

« Last post by franji1 on May 28, 2026, 03:54:25 PM »

(Sorry, I keep peeling the onion).

There are 2 other files that get "saved" with your .dmd project.  It's a Workspace (.wsp) and Designer Layout (.dlo) that saves the Trend View details so that any opened Trend Views get saved to THOSE files, and then would return the next time you opened up your project file (as part of the Designer LAYOUT).

That's probably close to what you are looking for?  But that is done "implicitly" by Designer that is related to the GUI - it's NOT part of the actual .dmd "disk project" file itself.

60

General Discussion / Re: New features wanted!! Apply here!

« Last post by franji1 on May 28, 2026, 03:48:41 PM »

Designer DOES support Trend Archives?  Is this what you are wanting?

Basically, you can store a current Trend View data set (either via the "record" button or the "export" button on Trend / PID View).  It saves all that data to a "disk" file (.trarc - trend archive) that you can bring up later in "historical" mode.

Is that useful to you?