2 Instrument Configuration
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Figure 2-39 Main control panel
1
2
3
4
5
6
9
8
7
1 - External wiring interface
2 - Network interface and USB interface
3 - Digital circuit module
4 - Debugging interface
5 - Motor, pump valve and
temperature-control module
6 - Analog impedance channel module
7 - Analog DIFF channel module
8 - Voltage-multiplying circuit module
9 - Analog HGB channel module
The main control panel can be clearly divided into digital part, analog part and driver part. Among
them:
⚫
The left half of the panel is the digital part, including ARM unit, FPGA unit, external interface,
debugging interface, power supply, etc.
⚫
The right half of the panel is the analog part, including impedance channel, DIFF channel,
hardware monitoring channel, external interface, power supply, etc.
⚫
The lower left corner of the panel is the driver part, including motor driver, valve & pump driver,
temperature control, etc.
⚫
In the middle of the panel there are AD and interface chips, where AD is responsible for
analog-to-digital conversion and the interface chip is responsible for on-off control for relevant
functions of the analog part.
2.3.1.2 Peripheral Interface of the Main Control Panel
There are several interfaces on the main control panel, and the detailed interface description is
