Overview
The BS-8G circuit board is upgraded and designed on the basis of the previous BS-8 circuit board, replaced with higher-speed ADC products, and improved the constant current source circuit and the RS485 communication circuit. The new and improved circuit board is suitable for harsh industrial RS485 networking measurement and control occasions. Using MODBUS-RTU protocol to achieve bi-directional half-duplex communication. Strict data verification measures are adopted to ensure the reliability of data. The whole circuit adopts wide power supply design and low power consumption characteristics. Provide constant voltage and constant current excitation output, adapt to most of the bridge sensors on the market. Enhanced EMC design, anti-burst interference, radio frequency interference. Software multiple verification, multiple backups of calibration data. Hardware watchdog logic. The communication interface is non-polarized design to ensure that the RS485 wiring does not need to pay attention to the polarity. The communication interface is connected to the wrong wire protection to ensure that the hardware will not be damaged.
Features
◆Adapt to diffused silicon, ceramics, strain gauge pressure transmitter
◆ Output RS485 signal, modbus-rtu protocol.
Technical indicators and parameters
powered by: |
DC8-32V |
Power consumption |
<8mA@24VDC |
Operating temperature: |
-40-85 ℃ |
Resolution: |
24 -bit binary |
Constant voltage excitation: |
DC5V ( <50mA) |
Constant current incentive: |
0.1-1.0mA , minimum 0.02mA adjustable |
Communication interface : |
RS485 |
Number of connections: |
255 Ge |
letter of agreement: |
MODBUS-RTU |
Temperature Coefficient: |
<20ppm |
Baud rate: |
1200-115200bps |
check: |
CRC check |
Shape and wiring
◎Dimensions
◎Wiring
Constant pressure sensor |
Ceramics, strain, sputtering, micro-melting |
|
Constant current sensor |
Diffused silicon, resistance |
Sensor excitation + |
V+ |
Sensor excitation + |
I+ |
|
Sensor excitation - |
V- |
Sensor excitation - |
I- |
|
Signal input + |
S+ |
Signal input + |
S+ |
|
Signal Input - |
S- |
Signal Input - |
S- |
Baoji XingYuTeng Measure and Control Instruments Co.,Ltd.
E-Mail: info@xytck.net
Tel:+86 917 3307712
Fax:+86 917 3307036
Address: 5 / F, block C, building 10, high-end equipment Industrial Park, high tech Zone, Baoji City