Activity for ahuckphin
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ahuckphin modified a comment on discussion Runtime 🇬🇧
codesyscontrol_user.cfg [SysCom] Linux.Devicefile.1 = /dev/ttyUSB0 portnum:=COM.SysCom.SYS_COMPORT1; **parameters are used in the python-script ** method: "rtu" port: "COM8" baudrate: 9600 stopbits: 1 bytesize: 8 parity: 'N' timeout: 1 register address for humidity: 0x000 register address for temperature: 0x001 unit ID: 1 **parameteized in the modbus-master-comport ** see attached files
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codesyscontrol_user.cfg [SysCom] Linux.Devicefile.1 = /dev/ttyUSB0 portnum:=COM.SysCom.SYS_COMPORT1; **parameters are used in the python-script ** method: "rtu" port: "COM8" baudrate: 9600 stopbits: 1 bytesize: 8 parity: 'N' timeout: 1 register address for humidity: 0x000 register address for temperature: 0x001 unit ID: 1 **parameteized in the modbus-master-comport ** see attached files
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codesyscontrol_user.cfg [SysCom] Linux.Devicefile.1 = /dev/ttyUSB0 portnum:=COM.SysCom.SYS_COMPORT1; **parameters are used in the python-script ** method: "rtu" port: "COM8" baudrate: 9600 stopbits: 1 bytesize: 8 parity: 'N' timeout: 1 register address for humidity: 0x000 register address for temperature: 0x001 unit ID: 1 **parameteized in the modbus-master-comport ** see attached files
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I have a DFRobot RS485 temperature & humidity sensor (SEN0438) connected to my Raspberry Pi via a USB to RS485 adapter. I am able to connect and read the sensor data when running a python code locally. However in Codesys, I encounter this error "A bus error has occurred." and "There was no response in time". Could this be because of Modbus Server Channel and Modbus Server Init configuration on my part? Admittedly I am new to Codesys. To get to this stage, I: 1. added some lines to CODESYSControl_User.cfg...