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ESP32 and PLC LOGO! Siemens MODBUS

2/29/2024 11:34 PM	Rate (0)
AAlejandraSaav Posts: 3 Rating: (0)	Hi, I am doing a project with ESP32 and PLC LOGO! Siemens Connection via Wifi The ESP 32 is connected to a WLAN 1100 from Phoenix Contact With the ESP 32 I want to read the distance using a VL53L0X laser I want to read the information via MODBUS TCP with the PLC LOGO! Siemens Connection This is how I go: MODBUS POLL CONNECTED WITH ESP 32 https://imgur.com/a/fSNzBy0 Read input registers https://imgur.com/a/6yuJX39 Now I see the value in the Modbus Poll, how does the PLC read it? That is, how do I configure the parameters? According to what Modbus poll tells me and what the PLC tells me https://imgur.com/a/GbUNTDp https://imgur.com/a/ALDCLIr
AAlejandraSaav Posts: 3 Rating: (0)
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3/1/2024 3:27 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/3/2025 Posts: 35915 Rating: (4496)	In this screenshot of the read/write definition of Modbus Poll you read a input register (IR). But in this screenshot of the parameterization of the NI the LOGO you choose Holding Register (HR) instead of Input Register (IR). And remember: The LOGO! has an offset of +1 for Modbus addressing. Edit: And by the way: Please don't post multiple for the same problem ...
	Last edited by: ixo65 at: 03/01/2024 03:28:47
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8/12/2024 2:39 AM	Rate (0)
sri_RINL Joined: 8/1/2024 Last visit: 3/8/2025 Posts: 2 Rating: (0)	Can you share the gsd file for esp32

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8/12/2024 3:00 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/3/2025 Posts: 35915 Rating: (4496)	LOGO! needs no GSD file. LOGO! doesn't know GSD files.

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