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Victron ESS modbus gridsetpoint

Created by: Jondal at: 1/18/2022 4:41 PM (9 Replies)

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1/18/2022 4:41 PM	Rate (0)
Jondal Posts: 19 Rating: (0)	Hello, I have a question. I have a Victron ESS system with which I occasionally want to feed back by setting the gridset point to -800W. Adjusting the gridset point is possible with Modbus TCP, but I don't know how to send a value to the Victron system. I want to set the Gridsetpoint to -800W when I offer input 1 on the logo. Can someone help me with this Thank you in advance . Attachment Victron Modbus.png (397 Downloads)
Jondal Posts: 19 Rating: (0)	Last edited by: Jen_Moderator at: 01/19/2022 09:04:56 Edited text for better reading.
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1/18/2022 4:54 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/10/2026 Posts: 36432 Rating: (4547)	And what should happen if the input 1 goes to 0? Which value should then be transferred? Then 0?

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1/18/2022 5:08 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/10/2026 Posts: 36432 Rating: (4547)	Without more informations I can only suggest the attachment. I don't know: - Can the modbus device server function? - What IP address have the LOGO! and the modbus device? - If the modbus device the server, what slave address has the Modbus device? - How is the first register number? 0 oder 1? Attachment Untitled.png (421 Downloads)

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1/18/2022 6:29 PM	Rate (0)
Jondal Posts: 19 Rating: (0)	Hello Thank you for your time. I will try to answer your questions - Can the modbus device server function? I don't think it's a modbus server - What IP address have the LOGO! and the modbus device? Logo:192.168.2.135 Victron:192.168.2.152 - If the modbus device the server, what slave address has the Modbus device? I don't know this - How is the first register number? 0 oder 1? it is at victron address + 1 that would mean in this case we need 2701
Jondal Posts: 19 Rating: (0)
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1/18/2022 6:37 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/10/2026 Posts: 36432 Rating: (4547)	Please note : The LOGO! has a offset of +1 in the addresses. If you want to write from the LOGO! to the Modbus device, the LOGO! must be the client.

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1/18/2022 6:53 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/10/2026 Posts: 36432 Rating: (4547)	One more question: What LOGO! have you exactly? Please write the complete article number?

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1/18/2022 7:03 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/10/2026 Posts: 36432 Rating: (4547)	ixo65 And what should happen if the input 1 goes to 0? Which value should then be transferred? Then 0? You have not give an answer to my question ...

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1/18/2022 7:25 PM	Rate (0)
Jondal Posts: 19 Rating: (0)	the setpoint then becomes 0, so we no longer deliver back
Jondal Posts: 19 Rating: (0)
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1/18/2022 7:28 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/10/2026 Posts: 36432 Rating: (4547)	Ok, I make you a example. You have a FS4 LOGO!, correct? Not a LOGO! 8.3?

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1/18/2022 7:34 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/10/2026 Posts: 36432 Rating: (4547)	Here's the example ... Attachment Project_FS4.zip (448 Downloads)

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