6 Hardware 6-5
6.6 Function of the Boards
6.6.1 Control Framework
The BS-120/BS-130/BS-180/BS-190 consists of the following three units: the analyzing
unit (main unit), the operation unit (PC) and the output unit (printer).
The analyzing unit (main unit) consists of the following units: the temperature control
system, the reaction system (include ISE), the photometric system, the sample and
reagent delivery system, the mixing system and etc.
Figure 6-2 shows the control framework of the BS-120/BS-130/BS-180/BS-190. The
function of the hardware system is as follows.
Communicating with the PC through the RS232 to send commands, reply data and
test results.
Controlling the data collecting process of optical system.
Controlling the movement of the moving units and collecting the status signal.
Controlling the temperature adjustment system and collecting the temperature status
signal.
Figure 6-2 Control Framework
6.6.2 Main Board
The function of the main board:
Transmitting the data and commands with PC through RS232.
Communicating with the sub-units(including ISE), transmitting the data and
commands through the extended RS232.
Adjusting the numeric adjustable resistor on the AD conversion board and collecting
the photoelectric data.
Controlling the rotation of step motors and driving moving units to accurate position.
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