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I am currently attempting to connect Ignition SCADA OPC server to the Pi as a modbus tcp slave. I can read the registers beautifully, however when I write to a register, it resets itself after about a second.
I have tried modbus slave simulators, other devices, and a Wago head unit running CoDeSys 2.3, and they all work correctly.
I have tried running with a blank program to verify that the POU wasnt doing something silly.
Is there any settings I am missing in 3.5 SP6 that could be resetting the values?
Thank you.
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I have a wago 8203 as unit for my gate and now i want to use the raspi for the buttons to control it from the house.
but I gave up because I don't understand how the thing with the registers works.
Does anyone somehow have a (both) project where the raspi simpli gets 4 outputs from variables out of an working wago project and where the raspi sends 4 inputs to the wago project?
I just want my hardware buttons be able to be lightet when the gate is not closed.
AND!: I don't know why this way with 4 inputs and 4 outputs isn't used anyway as remote-buttons over ethernet.....
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I have a problem with ModbusTCP_Slave_Device on RPi3 - during program execution there is always message "The bus is not running".
How can I turn ModbusTCP_Slave on?
Runtime version 3.5.10
Version of Ethernet and ModbusTCP_Slave_Device 3.5.10.0 too.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I am currently attempting to connect Ignition SCADA OPC server to the Pi as a modbus tcp slave. I can read the registers beautifully, however when I write to a register, it resets itself after about a second.
I have tried modbus slave simulators, other devices, and a Wago head unit running CoDeSys 2.3, and they all work correctly.
I have tried running with a blank program to verify that the POU wasnt doing something silly.
Is there any settings I am missing in 3.5 SP6 that could be resetting the values?
Thank you.
Hi,
you need to increase or remove the timeout see screenshot.
BR
Edwin
Days of pulling out my hair, over a checkbox.
Thats fixed it.
Thank you for your help Edwin.
Hi.
I have a wago 8203 as unit for my gate and now i want to use the raspi for the buttons to control it from the house.
but I gave up because I don't understand how the thing with the registers works.
Does anyone somehow have a (both) project where the raspi simpli gets 4 outputs from variables out of an working wago project and where the raspi sends 4 inputs to the wago project?
I just want my hardware buttons be able to be lightet when the gate is not closed.
AND!: I don't know why this way with 4 inputs and 4 outputs isn't used anyway as remote-buttons over ethernet.....
Hi,
are you using wago 8203 with CODESYS V3 or V2.3?
BR
Edwin
I have a problem with ModbusTCP_Slave_Device on RPi3 - during program execution there is always message "The bus is not running".
How can I turn ModbusTCP_Slave on?
Runtime version 3.5.10
Version of Ethernet and ModbusTCP_Slave_Device 3.5.10.0 too.