(1)| 12/15/2014 8:16 PM | |
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Posts: 1058 Rating:
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Look here for the pinouts: SIMATIC HMI HMI device OP 73, OP 77A, OP 77B (WinCC flexible) see chapter 12.3.2 RS 485 (IF 1B) on OP 73 S7-200 Programmable Controller, CPU21x see chapter 9.2 ommunication Network Components regards |
| 12/17/2014 5:50 PM | |
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Posts: 88 Rating:
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could i just connect (pin 3, pin8 ) plc side and (pin3,pin 8) hmi side when using an external power suply for the hmi ? |
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