Analog inputs, (meaning the module is to convert your voltage or current value to digital, then you can calculate the slope of the current form of the temperature or pressure.) If you ask to read the temperature or pressure values that you must bring the analog sensor output and analog output.
2014年7月31日星期四
the advantages of PLC analog IO module
First, it allows you to find plc IO module close to being monitored or controlled process. This greatly improves noise immunity, as weak sensor signals are transmitted long distances before converted into a digital signal through a noisy plant environments. Omega universalplc analog IO modules using MODBUS RTU / ASCII protocol, which is supported by a simple majority of the 2-wire RS485 programmable logic controller. The second advantage is, PLC analog input plc significantly reduces the wiring in the main control panel, saving time and money, while repairs and upgrades are necessary. Adding additional sensors and control signals are connected to the RS485 link and modify the PLC program has been installed, use the new I / as easy as O. In addition, plc analog input output module, you can expand your process control system beyond the local I / O capability of the PLC. You can add a thermocouple, RTD, pressure and flow sensors do not support these types of input of a PLC. With PLC analog IO modules, your application is no longer dependent on the choice of the controller.
订阅:
博文评论 (Atom)
没有评论:
发表评论