Virus Infection via serial Modbus
Posted by Rob Burghard on 2 June, 2018 - 4:35 am
Is it possible for an infected powermeter being the Modbus slave to infect its master via a serial connection?
By Rob Burghard on 10 June, 2018 - 1:19 pm
Thank you! The question is a very fundamental but real one: Can an infected Modbus slave infect...
By Fred Loveless on 6 June, 2018 - 10:57 am
It is possible but highly improbably that a virus could be passed up to the PC from the slave. The...
By Luca Gallina on 5 June, 2018 - 7:11 pm
trying to shed some light: 1. a Modbus Master polls for DATA. 2. the Modbus Slave (regardless...
By Rob Burghard on 2 June, 2018 - 5:33 pm
Thank you. Can we conclude then in general that it is impossible for a Modbus master to get a virus...
By Rob Burghard on 2 June, 2018 - 12:26 pm
Thank you. Perhaps my question wasn't clear. Let's say this powermeter has an infected OS. Can the...
Schneider Modicon M221 Coil Address
Problem writing to a single coil on a Schneider PLC using Libmodbus library
By Andrew on 5 June, 2018 - 7:20 am
Actually, M221 returns error ILLEGAL FUNCTION (code 1). That means PLC doesn't support function...
Searching a Program or script to read a meter connected to MGate MB3170.
By GAK on 4 June, 2018 - 7:36 am
Hello, ake a look at one of my favorite software packages, the Cogent Datahub. it can read/write...
New to modbus World and i need help regarding function 3, 4, 16
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By John Catch - InFLOW, INC. on 1 June, 2018 - 9:53 am
You might try contacting Micromint, LLC (www.micromint.com). They specialize in 8052 chips and have...
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Posted by gahelton on 10 May, 2018 - 3:40 pm
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FX5 PLC Modbus RTU Slave Timeout Error
Keep getting slave timeout error on PLC. TX light on PLC flashes and RX light on slave flashes.
By W.L. Mostia on 4 May, 2018 - 11:27 am
One suggestion is to swap your signal lines. I find it very useful when I've had problems with...
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By Lagan74 on 9 April, 2018 - 3:12 am
:) Actually, it not really me who has ruled out other options. It is rather the customer and the...
By Fred Loveless on 6 April, 2018 - 10:38 am
Hi, yes it is it is called Modbus over TCP not to be confused with Modbus TCP. This is...
By Bob Peterson on 6 April, 2018 - 9:49 am
There are several options available to you that might work. There are serial port converters...
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