Changes

==RS-232 Interface==

==RS-232 Interface==

RS-232 supports full-duplex communication which means the data can be both sent and received at the same time as they use separate transmission lines. Most of the modes are the same as for [[{{{model|FMB640}}}]]. When entering Sleep or Deep sleep RS-232 will be powered off.

RS-232 supports full-duplex communication which means the data can be both sent and received at the same time as they use separate transmission lines. Most of the modes are the same as for [[{{{model|FMB640}}} RS-232 and RS-485|RS-485]]. When entering Sleep or Deep sleep RS-232 will be powered off.

[[{{{model|FMB640}}}]] RS-232 connection diagram is shown in the figure below:

[[{{{model|FMB640}}}]] RS-232 connection diagram is shown in the figure below:

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===RS-232 modes===

===RS-232 modes===

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Silent, Log mode, NMEA, LLS, TCP ASCII, and TCP Binary modes, TCP ASCII/Binary Buffered modes are identical to those of [[{{{model|FMB640}}}]] RS-232 and RS-485 modes.<br/>

Silent, Log mode, NMEA, LLS, TCP ASCII, and TCP Binary modes, TCP ASCII/Binary Buffered modes are identical to those of [[{{{model|FMB640}}} RS-232 and RS-485|RS-485]].<br/>

'''Note:''' In RS-232 LLS mode only one LLS fuel level sensor can be connected.

'''Note:''' In RS-232 LLS mode only one LLS fuel level sensor can be connected.