Controlling a Slow Process with Modbus

Introduction Modbus RTU and TCP are, when compared to PROFINET, PROFIBUS and EtherNet/IP, slow protocols. Therefore, it is not suited for ‘real-time’ control in most cases. However, if the process is also very slow, then Modbus can be fast enough. If things change in...

Modbus is DEAD! Long live Modbus!

Modbus is the Grand-daddy of industrial protocols. It has been around since the mid-70s. One would think it had gone the way of the Eight-track tape by now. I have heard, ‘Oh Modbus, it is dead – isn’t it?’ Well, No, it is not. As I have...
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