op77a transfer mode not possible

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HI, i am trying to transfer a programme through wincc 2008 , unfortunately it shows device is not connected. i am using usb/mpi/ppi adapter. any...
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Hello everyone, I am stuck here with an OP77A HMI, the problem I am facing is that I am unable to open its loader as its startup delay(as I think)...
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Sir, We purchased the HMI pannel OP77A. When we just tried to update the OS for version changing, the updating procedure just...
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Hi all I'd a SCADA system with HMI OP77A, and it's required to make a State and Forced variables (I mean to write an address of my plc and get...
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Hi all, i want to transfer a program from winccFlexible2005 SP1 HF7 to OP77A. i have PC/PPI cable 6ES7 901-3CB30-0XA0. i can't transfer program to...
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