I was simply forced to not callread_holding_registersas often as I wanted to. I'm my case I wanted to read from a device every 250ms but I ran into the connection timeout error. When I read from the device every 500ms the connection never times out. ...
FreeBSD, QNX以及Windows,其官网是:https://libmodbus.org,其源代码托管在github libmodbus,其安装和使用很简单,本人在Windows10下的Visual Studio2017以及在CentOS7下都使用过。 由于本人最近从事的工作是环保设备方面的,很多时候设备采用简单的Modbus工业协议,比如非甲烷总烃分析仪的Modbus地址定义如下表:
ERROR Connection timed out: select <00><01><02>Quit the loop: Connection timed out git bisectthus concludes again: b4ef4c17d618eba0adccc4c7d9e9a1ef809fc9b6 is the first bad commit commit b4ef4c17d618eba0adccc4c7d9e9a1ef809fc9b6 Author: Michael Heimpold <mhei@heimpold.de> Date: ...
在Linux底下做modbus通信的话,我们经常来移植libmodbus,通过命令行操作来编译,可以到官网下载最新版的源...
com.intelligt.modbus.jlibmodbus.exception.ModbusIOException: java.net.SocketTimeoutException: Read timed out at com.intelligt.modbus.jlibmodbus.tcp.TcpAduHeader.read(TcpAduHeader.java:103) at com.intelligt.modbus.jlibmodbus.net.transport.ModbusTransportTCP.read(ModbusTransportTCP.java:50) at com.in...