12/11/2019 1:40 PM | |
Joined: 9/27/2006 Last visit: 9/24/2024 Posts: 12282 Rating: (2685) |
Hello Doff; Have a look at the following document: Simatic WinCC WinCC Engineering v15.1 - Communication https://support.industry.siemens.com/cs/us/en/view/109755215 You will find there a chapter on Modbus RTU communications with Modicon PLCs on WinCC v15.1 Establishing succesful exchanges with your Diris A40 depends on how closely the Diris follows the Modicon Modbus RTU communication standards. There are a few threads on the Diris A40 on the forum, search for them using the Search Box at the top right of this page, you might find information that could help you out. Note that another link could be available to exchange data between the Diris A40 and the WinCC OPC channel, if you can procure an OPC server for the Diris unit. Check it out in the WinCC engineering document proposed above. Hope this helps, Daniel Chartier
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12/11/2019 6:56 PM | |
Joined: 3/28/2010 Last visit: 9/21/2024 Posts: 1056 Rating: (213) |
From a quick glance at Diris A40 spec sheet, it has either a Modbus/TCP (Ethernet) option or a Modbus RTU (RS-485) option. The Diris A10 appears to have only a Modbus RTU RS-485 port because the word Ethernet does not appear in the spec sheet at this URL: 1) A stand-alone converter/gateway"serial server" that converts from RS-485 Modbus RTU to Ethernet Modbus/TCP. There are brand/models that are 'generic' (cost less) on which Modbus tends to fail because of the timing requirement of Modbus RTU. Then there are brand/models that say they are specifically for converting Modbus RTU to Modbus/TCP. that work OK. The serial side uses the device address, the Ethernet side uses an IP address. Some configuration is required, like the serial settings (baud rate, 8 data bits, parity, 1 start bit, 1 stop bit). 2) An RS-485 serial card for whatever your SCADA box is. |
Last edited by: Jen_Moderator at: 12/12/2019 08:49:24Edited text for better reading. |
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12/12/2019 11:40 AM | |
Joined: 9/5/2018 Last visit: 7/23/2024 Posts: 14 Rating: (0) |
Yes, there is no RS-485. Thank you very much for your help, I will consider the option with a converter. |
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