这篇文章是接上一篇Modbus协议简介,主要介绍Modbus实际项目应用—libmodbus驱动库的使用,断断续续写了近一周时间。 上一篇文章,我们介绍了Modbus协议物理层和协议层,我们知道了Modbus是一种总线协议,它可以基于串口或网口,以基于串口的Modbus-RTU为例,我们 ...
Modbus协议,从字面理解它包括Mod和Bus两部分,首先它是一种bus,即总线协议,和I2C、SPI类似,总线就意味着有主机,有从机,这些设备在同一条总线上。 Modbus支持单主机,多个从机,最多支持247个从机设备。关于Mod,因为这种协议最早被用在PLC控制器中,准确的 ...
Modbus IDA, an organization comprising automation-device users and suppliers focused on the adoption of the Modbus-protocol suite, and the ITEI (Instrumentation Technology and Economy Institute) have ...
TDK Corporation has introduced a ModBUS TCP interface option to its GENESYS+ series of programmable DC power supplies. The option is available on all models ranging from the 1U high half rack GH1.5kW ...
Schneider Electric has developed an FDT2 version of its Modbus Universal DTM. This DTM helps test any Modbus device during development. It provides an easy way to verify a device implementation in an ...
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