ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. E
5-10
Note:
If the system is required to operate on-line to exchange data
between the PC and the RE. 316*4, the two must be connected
by a serial data cable. The cable connects the serial port COM 1
or COM 2 on the PC to the optical connector on the front of the
RE. 316*4. The protection must be in operation, i.e. the green
stand-by LED must be lit or flashing.
Units that are not synchronised by the station control system via
the interbay bus adopt the PC time when the HMI is started.
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