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Data logging help with Logo 8.2

Created by: Tetrapak1 at: 1/7/2019 2:32 PM (3 Replies)

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1/7/2019 2:32 PM	Rate (0)
Tetrapak1 Posts: 3 Rating: (0)	Greetings, so far I have been working with LOGO 8.2 without problems however after figuring out the data logging feature I was wondering if I could make my life easier since I can't seem to find the following feature. Is there a way to tell LOGO to automatically log certain inputs and outputs on any input/output change? The only way I figured out how to do data logging is to send all the I/O signals to the L input (using many or gates and pulse blocks). If not what is the easiest way to do it? Is there a block that works as the attached image? Attachment puls.pdf (299 Downloads)
Tetrapak1 Posts: 3 Rating: (0)	Last edited by: Tetrapak1 at: 1/7/2019 2:33:11 PM
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1/7/2019 2:48 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/4/2023 Posts: 31545 Rating: (3920)	Hello Tetrapak1, First of all, welcome to the forum. This would require two blocks for each input (or output), the rising edge (the AND (Edge)) and the falling edge (the NAND (Edge)). You would then have to interconnect the outputs via OR blocks. In addition, you should note: There must be a pause time of 500ms between each log. If this break is not respected, you will not be logged. For the German-speaking forum, I once created a UDF that monitors 8 UDF per digital signal change state on each UDF. Each time the state changes, a pulse is generated at the output of the UDF. I have attached the LSC file and the UDF file. Attachment Pulse_for_Logging.zip (385 Downloads)

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This contribution was helpful to 2 thankful Users #dP NIBOU

1/7/2019 3:01 PM	Rate (0)
Tetrapak1 Posts: 3 Rating: (0)	Thank you for quick response. Your solution is great and I will probably have to use it but I feel kinda sad that there is no auto option to log on any I/O change. Maybe it will be added in the future updates.
Tetrapak1 Posts: 3 Rating: (0)
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1/7/2019 3:11 PM	Rate (0)
#dP Posts: 2826 Rating: (680)	Tetrapak1 <snip> but I feel kinda sad that there is no auto option to log on any I/O change. Maybe it will be added in the future updates. Do you realize you are looking for a data recorder in a programmable relay? So how many LOGOs do you see you'll buy if it has what you ask? We'll consider your request if you place 20,000 units over the next 3 years. Just a friendly reality check. Perhaps a data recorder device would suit you better. Or perhaps Siemens' IOT2000 range.
#dP Posts: 2826 Rating: (680)
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