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How to trigger a STARTUP event?

Created by: Saint Germain at: 7/29/2013 11:43 PM (14 Replies)

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7/29/2013 11:43 PM	Rate (0)
Saint Germain Experienced Member Joined: 8/18/2010 Last visit: 3/18/2023 Posts: 42 Rating: (9)	Hello all, I have a script that I only need to run when the HMI is first turned on. I looked in the scheduler and I do not see a "startup" trigger. I cannot activate the script from my start screen being loadedbecause this would run the script again if the user navigates back to the start screen which is not desirable in my instance. Any ideas out there? Thank you, Jeremy

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7/29/2013 11:52 PM	Rate (0)
0_Einstein Diamond Member Joined: 7/7/2010 Last visit: 12/7/2023 Posts: 13989 Rating: (2282)	Can you trigger on a PLC bit? Have one follow your HMI coming online and toggle from off to ON when the PLCdetects the HMI is online.
	Last edited by: huggy_d1 at: 7/29/2013 11:52 PM typo science guy
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7/30/2013 6:40 AM	Rate (0)
Saint Germain Experienced Member Joined: 8/18/2010 Last visit: 3/18/2023 Posts: 42 Rating: (9)	I dont think that is an option in my case since my HMI is a master on a Modbus Network and my PLC is the slave.

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7/30/2013 7:09 AM	Rate (0)
Nelliyan randy Posts: 461 Rating: (29)	I donno that plc can detect the HMI online status.my idea is Run the script using a off condition of a tag.. set that tag in the first scan bit of plc ..still need some time then use timer in ms.. As the bit will be initially off the script will run.. once the tag got set the script will be stoped.. now script will dont have chance to run agin til plc is on ( stop to run) ..If hmi alone swithced off & on this will not work. Seems a little loop logic.. wait for other's suggestions. Regards, Nelliyan.G
Nelliyan randy Posts: 461 Rating: (29)
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7/30/2013 3:18 PM	Rate (0)
Saint Germain Experienced Member Joined: 8/18/2010 Last visit: 3/18/2023 Posts: 42 Rating: (9)	Thank you for the suggestions, but I am looking for a way to do this in the HMI. I do not have a "PLC" in my case only Modbus slave devices such as temperature transmitters, etc. Very small system that does not require a PLC since I have my logic being performed using VB scripts. Any other ideas with a MP-277 HMI only solution?
	Last edited by: Saint Germain at: 7/30/2013 3:19 PM
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7/30/2013 5:04 PM	Rate (1)
rdoliveira Gold Expert Joined: 4/26/2012 Last visit: 12/8/2023 Posts: 1448 Rating: (146)	What I would do is in the "loaded" from your main screen you call the "script" and an internal tag starting at zero (0), you charge for one (1) when you get into your "script", when there the user to re-enter this screen the script will be called, however it will not run the script, you make an "if" jumping to the end. "if 0" performs "else" jumps. good luck.
	"Always make a backup before and check the best time before testing." Obrigado.
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This contribution was helpful to 2 thankful Users Saint Germain Padre Dimitry

7/30/2013 6:01 PM	Rate (0)
Saint Germain Experienced Member Joined: 8/18/2010 Last visit: 3/18/2023 Posts: 42 Rating: (9)	Ricardo, Thank you for your suggestion. That will do exactly what I want!

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7/30/2013 6:35 PM	Rate (0)
rdoliveira Gold Expert Joined: 4/26/2012 Last visit: 12/8/2023 Posts: 1448 Rating: (146)	ok, good luck
	"Always make a backup before and check the best time before testing." Obrigado.
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3/1/2016 4:22 PM	Rate (0)
Jackcaress Silver Member Joined: 3/12/2015 Last visit: 11/29/2023 Posts: 529 Rating: (15)	Im looking to do the same thing but i couldnt find the loaded part? where is that located?

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3/1/2016 4:35 PM	Rate (1)
H.J. Gold Member Joined: 6/3/2014 Last visit: 1/17/2023 Posts: 660 Rating: (188)	Hello Jackcaress, you're talking about his part? rdoliveira What I would do is in the "loaded" from your main screen you call the "script" and an internal tag starting at zero (0), you charge for one (1) when you get into your "script", when there the user to re-enter this screen the script will be called, however it will not run the script, you make an "if" jumping to the end. "if 0" performs "else" jumps. Open your screen (e. g. "Screen 1") and click on "Layout" on the right side of the screen. Click on the top entry. It has the name of the screen (e.g. "Screen_1"). Click on "Properties > Events" on the bottom middle window. Here you can add system functions and scripts. If you add a function to "Loaded" it will be executed every time the screen ("Screen_1") is opened in runtime.
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