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programmatically changing IP address on slave

Created by: markheuer at: 2/16/2017 4:58 PM (22 Replies)

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2/16/2017 8:43 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/4/2025 Posts: 35920 Rating: (4496)	Maybe I do not understand you right. Does one of the LOGO!s ever have to be a slave? I do not understand their concept. If you run all 3 LOGO!s as master, all 3 can data be interchanged. And with the OBA7 it is possible to send switching commands and / or feedbacks to the other 0BA7 or the 0BA8. Just not with direct network outputs that goes at a 0BA7 only to a slave LOGO !. There is a another way, I've already done. And when all 3 LOGO!s run in master mode, a separate program can run in each LOGO!

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2/17/2017 7:55 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/4/2025 Posts: 35920 Rating: (4496)	In the examples in the attachment, I show you how to send signals from the new 0BA8 to the already existing 0BA7 and send them from the two 0BA7 to the 0BA8. All three LOGO!s are masters. The notes include: 1 x UDF HighByte 1 x UDF low byte The two UDFs are used to collect the 15 signals used in a word. 1 x LSC file (15_bits_of_a_0BA7_send_to_a_partner.lsc) as sample file for the use of the two UDFs. 1 x MNP file (3xMaster_1x0BA8_2x0BA7.mnp) as an example project for networking the LOGO!s. Attachment Example.zip (350 Downloads)

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2/17/2017 8:39 PM	Rate (0)
markheuer Posts: 158 Rating: (1)	Can I do it with LLD?
markheuer Posts: 158 Rating: (1)	Last edited by: markheuer at: 2/17/2017 8:40:32 PM Last edited by: markheuer at: 2/17/2017 8:47:12 PM Last edited by: markheuer at: 2/17/2017 8:51:22 PM
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2/17/2017 8:50 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/4/2025 Posts: 35920 Rating: (4496)	You probably mean FBD and not LSC. LSC and LLD are only the extensions for the filenames. In a network project, the program can only be created in FBD. If you absolutely want to program in LAD, then I clipped you only advise. LAD in LOGO! makes too many mistakes and does not offer you all the possibilities. If you have created the programs in the two 0BA7 in LAD, you can convert them to FBD.

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2/17/2017 8:53 PM	Rate (0)
markheuer Posts: 158 Rating: (1)	I've run into difficulty setting up the network in LAD, I wasn't getting the same screens as you were when configuring....I'm going to start from scratch, but I only know LAD.
markheuer Posts: 158 Rating: (1)
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2/17/2017 9:11 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/4/2025 Posts: 35920 Rating: (4496)	The next problem: UDFs only can be programmed in FBD, can not convert to LAD.

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2/17/2017 9:31 PM	Rate (0)
markheuer Posts: 158 Rating: (1)	What if I use all 0BA8? I should be able to do it like you did in your sample "Test_2_Master_1_Slave_0BA8" yes?
markheuer Posts: 158 Rating: (1)
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2/17/2017 9:50 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/4/2025 Posts: 35920 Rating: (4496)	If you want to change the two 0BA7 against to a 0BA8, you do not need the UDFs. But that does not change the fact that you can not create a network project with LAD. With LAD you have to program everything yourself, every network connection and every data exchange. And LAD is not my programming language. I do not like LAD. LAD (in LOGO!) makes too many errors and the errors are not always displayed in LAD. And for this reason I have not programmed much in LAD and can not help you with LAD.

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2/17/2017 10:13 PM	Rate (0)
markheuer Posts: 158 Rating: (1)	ok, that is unfortunate. What I'm going to do then is keep the 0BA7's, and just give each one a slave. I had that working on my desk. It will just cost more and be less efficient. Thanks for your help!
markheuer Posts: 158 Rating: (1)
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2/17/2017 10:21 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/4/2025 Posts: 35920 Rating: (4496)	There is also the possibility to exchange the data without UDFs. You can use flags instead of network outputs. In the connection list, enter the "sender" MB (byte of flags) and the other side VB.

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