Strange requirements for the ESD-rated travel distance of pneumatic valves
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The TOPWORX limit switch has a button that enables partial stroke functionality, but what is RS485 communication as specified in the data sheet? What is its purpose?
RS485 communication is a serial communication protocol used for long-distance and high-speed data transmission. In the limit switches of pneumatic valves, RS485 can be used to remotely monitor and control certain aspects of the valve’s operation, or to exchange data with other control systems. .
He requested a valve position transmitter, that is, 4-20Ma feedback; he must be using a module to convert 4-20Ma into RS485 communication, right?
In the table you provided, only digital output and 485 communication are shown; no 4-20ma output is listed. Digital signals can be used for interlocking, while 485 communication is used for data transmission; I don’t know what’s bothering you
Yes, typically, limit switches equipped with valve position transmitters use built-in modules to convert analog signals (4-20mA) into digital signals (RS485 communication), thereby enabling remote monitoring and precise control. .