Technical Manual Version 002
BRUKER BIOSPIN
25 (55)
4
Remote interface
control
4
Microcontroller interface
4.1
This interface has several functions :
•
Host computer - Eurotherm 2416 transparent communication through a serial
port.
•
Transmission of BVT3200 internal status to the host computer.
•
Probe heater on/off control.
•
Gas flow rate settings.
•
Installed option control :
1. Evaporator heating power settings.
2. Exchanger control with nitrogen level detection.
3. Etc.
Opto-isolated inputs receive informations and safety flags :
•
Probe heater overheating flag.
•
Gas flow detection.
•
LN
2
level monitoring (when option available).
•
Probe heater power status flag (on/off).
•
Etc.
Eight optoisolated outputs (
PORT3
) transmit the control byte for the DAC that
delivers the LN
2
heater control signal.
Digital interface specifications
4.2
Microcontroller :
8 bits 8032 microcontroller clocked at 11,05 MHz
Program Memory :
Flash EPROM 64 K. A new firmware can be downloaded in this memory
through the RS232 link.
Sram :
32 Kilobytes
Eeprom :
256 bytes for manufacturing informations storage (BBIS informations).
Summary of Contents for NMR BVT3200
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