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Modbus TCP issues

7/2/2024 6:00 PM	Rate (0)
pencer Joined: 6/16/2024 Last visit: 7/4/2024 Posts: 1 Rating: (0)	Hello, I want to communicate via modbus tcp. The plc is configured as mb_client. I am using modbus slave software to check the communication, but the status is 70001 and 70002 all the time and it fails to connect. I'm still learning plc programming, thanks for the help PLC: s7-1211C DC/DC/DC Tia version: V16 https://imgur.com/a/drQ4P7m

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7/3/2024 2:20 PM	Rate (0)
Swarley92 Experienced Member Joined: 8/12/2021 Last visit: 11/5/2024 Posts: 330 Rating: (30)	Hi! First, I would try removing the Always true flag and manually triggering the request. It seems that the function is not executed. Make sure you are using the correct InterfaceID for your case. You can find more information and use cases at the following link
	If this Information really helps, you could use the Rate function Best regards Swarley92
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This contribution was helpful to 1 thankful Users pencer

7/8/2024 10:52 AM	Rate (0)
Murof Platinum Member Joined: 8/3/2009 Last visit: 11/5/2024 Posts: 14087 Rating: (1766)	Hello pencer check also this application example, perhaps there are some useful information: https://support.industry.siemens.com/cs/de/en/view/102020340 Bye Murof
	If this Information really helps, you could use the Rate function
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