Communication Strategy between Hologic DCS and Siemens PLC
For the domestic Hollis DCS and Siemens series PLC can not be achieved between the direct communication,resulting in inconvenient data transmission,the Modbus RTU method to achieve communication between the two.Taking an alumina plant power plant PLC control chiller system as an example,the third party Modbus RTU communication protocol is used to achieve the communication between Siemens 300 series PLC and HELLY TIMES DCS.Through three years of application in the field,this solution is stable and reliable,and the data transmission is stable.
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