communicate with 3 Siemens PLC's using the MPI Protocol.
Goals and Symptoms
We want to communicate with 3 Siemens PLC's using the MPI Protocol. The MPI adapter XBTZ929 is connected on port COM1.
Causes and Fixes
3 PLCs to 1 target cannot be used with the MPI Adapter. The MPI Adaptor is an RS232C Serial Interface, which means it is a Point-to-Point protocol.
This is not a defect. It is the specification of RS232C serial protocol. However, the IO Manager should not allow additional EQUIPMENT to be added when using the MPI Adapter Driver. There should only be one EQUIPMENT under the driver node.
If the customer needs to use 3 PLCs, I would recommend them to use the Siemens MPI/PPI Protocol instead. This protocol is RS422 2-Wire which supports 3 PLC to 1 target connection. Switching over to this protocol is just a matter of reconfiguring the project and creating a new cable.
게시 대상: 슈나이더 일렉트릭 Korea
도움이 필요하신가요?
제품 선택기
애플리케이션에 적합한 제품과 액세서리를 빠르고 쉽게 찾을 수 있습니다.
견적 받기
영업 관련하여 온라인으로 문의하시면 전문가가 연락드립니다.
구매처
해당 지역의 가장 가까운 슈나이더 일렉트릭 대리점을 쉽게 찾을 수 있습니다.
지원 센터
한 곳에서 모든 요구 사항에 대한 지원 리소스를 찾아보십시오.