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樓主  發(fā)表于: 2017-05-27 09:38
請教個(gè)問(wèn)題，西門(mén)子S7-1200 PLC  CPU-1211C選型顯示信號擴展模塊 無(wú)  是不是不能擴展？ CPU1214C顯示擴展模塊是8個(gè)，是不是說(shuō)擴展輸入和擴展輸出總共是8個(gè)？RS485通信模塊擴展是不是不算在這8個(gè)范圍里？
[ 此帖被peilei1031在2017-05-27 10:35重新編輯 ]

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