We have a single phase energy meter Saral series of Secure. It has micr-USB port for RS232 communications. We need to get this data in Siemens PLC. I am thinking of using a NodeMCU to read this data and then send it to the PLC over RS485.
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Hello I am automation engineer I know simens plc,allen bradley plc,omron plc,mitsubishi plc Wincc scada ,hmi ,touchpanel Robotic knowladge For more info let me discuss
hi .i have more than 8 years experienced in circuit design and development..in my past I have designed communication board for company..I can design best way without emiemc problem