Operating instructions

Mounting and connecting
4.3 Connecting the HMI device
MP 377, MP 377 PRO (WinCC flexible)
72 Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
Configuring the PC/PPI cable
Use the DIP switches to configure the transfer rate of the PC/PPI cable.
Note
Set a lower bit rate if the connection is lost during the operating system update. If you use
a higher bit rate, you must use the PC/PPI cable version 3 or higher. The version code is
printed on the cable ("E stand 3," for example, corresponds to version 3).
 
① DIP switch
② LEDs
Set DIP switches 1 to 3 to the same bit rate as in WinCC flexible. DIP switches 4 to 8
must be set to "0".
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


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① DIP switch
The following bit rates can be set:
Bit rate in Kbps DIP switch 1 DIP switch 2 DIP switch 3
115.2 1 1 0
57.6 1 1 1
38.4 0 0 0
19.2 0 0 1
9.6 0 1 0
4.8 0 1 1
2.4 1 0 0
1.2 1 0 1
In the figure, the bit rate is set to 115.2 Kbps.