2/11/2019 5:11 AM | |
Posts: 33 Rating:
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Hi, Is there anyone here ever attempted connection bettwen Modbus TCP/IP, PLC and IoT 204 0that are not from Siemens product using Node-Red? If there is no one ever tried that, May I know if that's possible or not to do that. ------------------------------------------------------------------------------------------ |
Last edited by: Legitnewbie123 at: 2/11/2019 5:42:55 AMLast edited by: Legitnewbie123 at: 2/11/2019 5:45:15 AMLast edited by: Jen_Moderator at: 2/11/2019 1:10:55 PMNew subject after splitting |
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2/12/2019 4:43 PM | |
Joined: 4/28/2015 Last visit: 8/26/2024 Posts: 3345 Rating:
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Hi, Modbus TCP is a protocol which is based on ethernet. Your PC can either be connected via FTDI to the IOT or as well via ethernet on port X1 (therefore you have to use a switch in order to connect the PLC and the PC to X1). There a lots of examples here in the forum about Modbus TCP communication. For example this one. And if it is not clear: You cannot use Modbus to send data to a cloud. Therefore use MQTT or another supported protocol from your cloud. Best regards! |
Not working for IOT2050 support anymore from March 1st, 2024. |
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2/13/2019 8:57 AM | |
Joined: 4/28/2015 Last visit: 8/26/2024 Posts: 3345 Rating:
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Yes this is correct. One ModbusTCP input node for PLC -> IOT2000 One MQTT output node for IOT2000 -> Cloud. I don't know which clouds are supporting which protocol... There are also other nodes/protocols for this. Some cloud "vendors" have their own nodes for connecting to their cloud (easiest way) There are some tutorials using MQTT (search function). For example this one. Best regards! |
Not working for IOT2050 support anymore from March 1st, 2024. |
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2/13/2019 9:38 AM | |
Joined: 4/28/2015 Last visit: 8/26/2024 Posts: 3345 Rating:
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If you plan to use IBM Bluemix, there are some node for connecting to it. So you don't need to take care of the protocol. Check out this application example. So collect data via Modbus TCP from the ABB PLC and send it to cloud via Bluemix node. In the example OPC UA is used to collect data from the PLC. If the ABB PLC does have an OPC UA server you can use OPC UA instead of Modbus as well. Best regards! |
Not working for IOT2050 support anymore from March 1st, 2024. |
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