系统压力或差压变送器信号输出采用HART现场总线协议，数字信号传输通过RS485进行MODBUS通讯。
HART field-bus protocol is used in output of system pressure or differential pressure transmitter, digital signals is transmitted with MODBUS via RS485.
介绍了ARINC 429串行总线的数字信息传输规范和工作方式。
This paper introduces the ARINC429 Digital Information Transmission Specification and working mode.
ARINC 429总线是广泛应用于航空电子设备上的一种数字传输总线。
ARINC429 specification is a digital transfer bus standard widely used in the avionics devices.
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