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Appendix C Main Menu Operation of HMI System|ScrEdit Software User Manual
C-4 Revision Apr. 30th, 2007, 2007PDD23000002
Bypass Mode:
Through Bypass mode, the data transferred by PC can be received by HMI
COM ports directly and then be sent by another COM port of HMI. When
planning the system, the user can use this function to update the program of
the controller immediately. For example, when COM1 port of HMI is connecting
to PLC, if the PLC program needs to be updated during operation, the user can
select Bypass mode to transfer the new PLC program of PC to HMI via COM2
port of HMI and then download the new PLC program to PLC via COM1 port of
HMI. The user does not need to remove PLC from PC.
When touching Download Port icon on the screen, COM Port Download/
Upload dialog box will display and ask the user to select the desired COM port.
After the user selects the COM port, HMI system will ask if Bypass mode is
used or not. Press Yes button and HMI will enter into Bypass mode. Press
Cancel button is to exit Bypass mode.