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interface《sharing with serial communication interface》). See Pins 9 and 10 for definition of its pins in
Figure (2-5).
Signal ground
(Figure 2-5) Serial communication and scoreboard output interface signal
Signal of scoreboard is current loop or RS232 signal and it is output serially in binary code with
baud rate of 600. Each frame has 11 bits, i.e. one start bit (0), 8 data bits (lower bits in front), one mark
bit and one stop bit (1).
3. The indicator sends out a group of data every 100ms with 3 frames of data contained. See the
meaning in Figure (2-6).
First frame
Bit
Second frame
Bit
Third frame
Bit
First frame data: the mark bit is 0;
X K 3 1 9 0 –DS3
(Figure 2-6.1) First frame oscillogram
(Figure 2-6.2) Second frame oscillogram
(Figure 2-6.3) Third frame oscillogram
(4)
Connect the scoreboard
Scoreboard RS233 output interface
back scheme
of the
machine
housing
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