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Sinamics V20 Inverter

Created by: AutoGen_6856035 at: 10/23/2024 9:41 AM (2 Replies)

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10/23/2024 9:41 AM	Rate (0)
AutoGen_6856035 Joined: 10/23/2024 Last visit: 5/1/2025 Posts: 1 Rating: (0)	First time using the V20 and first time using modbus RTU protocol. Is it possible to get information about the current load of the motor in the status word to the PLC? I am using an S7-1200

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10/24/2024 11:20 AM	Rate (1)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 1/8/2026 Posts: 6065 Rating: (828)	Dear AutoGen_6856035, if you want to use Modbus RTU, please find detailed information in the instruction manual of the V20 under the following link: https://support.industry.siemens.com/cs/document/109824500/sinamics-v20-operating-instructions?dti=0&lc=en-WW Chapter 7.2 describes the Modbus communication in detail. To read out the load of the motor you can read out the Modbus register 40028 for the actual power of the inverter. Cyclic reading of registers is possible with function code 3 (FC3). Please find the application example under the following link: https://support.industry.siemens.com/cs/document/63696870/sinamics-v-speed-control-of-a-v20-with-s7-1200-(tia-portal)-via-uss%C2%AE-protocol-modbus-rtu-with-hmi?dti=0&lc=en-WW
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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10/24/2024 12:51 PM	Rate (1)
0_Einstein Grandmaster Joined: 7/7/2010 Last visit: 1/7/2026 Posts: 16354 Rating: (2522)	Is your V20 incapable of USS communications / control? The S7-1200 surely speaks USS via RS485. Siemens even has an example application posted on this support site explaining how to do it. https://support.industry.siemens.com/cs/document/63696870 AutoGen_6856035 First time using the V20 and first time using modbus RTU protocol. Is it possible to get information about the current load of the motor in the status word to the PLC? I am using an S7-1200
	science guy
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