Ciro99 Posted January 12, 2021 Report Share Posted January 12, 2021 Hi everyone, I need help with a project where I have a LOGO! Siemens 6ED1052-1HB08-0BA0 that communicates the states of inputs and outputs via Modbus/Ethernet with Labview, I wanted to ask you if it is possible, using labview to check the state of a Merker, then to virtually change the status of the Merker from 1 to 0. I have already tried Ethernet Modbus. thanks in advance for the help. Link to comment
Neil Pate Posted January 12, 2021 Report Share Posted January 12, 2021 1 hour ago, Ciro99 said: Hi everyone, I need help with a project where I have a LOGO! Siemens 6ED1052-1HB08-0BA0 that communicates the states of inputs and outputs via Modbus/Ethernet with Labview, I wanted to ask you if it is possible, using labview to check the state of a Merker, then to virtually change the status of the Merker from 1 to 0. I have already tried Ethernet Modbus. thanks in advance for the help. I cannot recall doing this with a LOGO! but have done it quite a bit with plain old S7s. The Modbus module (now open source) works just fine. What difficulties are you having? Link to comment
Ciro99 Posted January 13, 2021 Author Report Share Posted January 13, 2021 Thanks for the reply. I am using Labview with the Modbus / ethernet module and can read the states of the inputs and outputs of LOGO! but I would also like to "write" them, such as changing the status of the Merker from 0 to 1. I don't know if I have made myself clear. Link to comment
Neil Pate Posted January 13, 2021 Report Share Posted January 13, 2021 So I am not a Modbus expert, but have definitely written information to a PLC in the past. As far as I know you cannot write to input registers, I presume you can write to output registers (are they called coils?). I don't have the toolkits installed on my PC right now so I cannot check. This code below works fine for setting Holding Registers. Have you tried writing to the Holding Registers? I 1 Link to comment
Ciro99 Posted January 14, 2021 Author Report Share Posted January 14, 2021 22 hours ago, Neil Pate said: So I am not a Modbus expert, but have definitely written information to a PLC in the past. As far as I know you cannot write to input registers, I presume you can write to output registers (are they called coils?). I don't have the toolkits installed on my PC right now so I cannot check. This code below works fine for setting Holding Registers. Have you tried writing to the Holding Registers? I Good morning, I'll try your advice. thank you very much for your reply. Link to comment
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