Simulate communication between HMI and PLC

ciccio · Dec 17, 2011

Hi all,
i'm pretty new in this field.
For university purpose i have to develop a IDS ( or maybe just some snort rules) for scada systems.

so i was wondering if there is any software that can help me to simulate PLC-> HMI communications and vice-versa (if possible in modbus).
can anyone help me in that?

thank you in advance.

Mark- · Dec 17, 2011

Hi,

We have a couple of free protocol simulators.

danw · Dec 17, 2011

What is IDS?

what is snort rules?

Mickey · Dec 17, 2011

danw said:
What is IDS?

what is snort rules?

Google found both on the same site. WOW

http://www.sourcefire.com/security-technologies/open-source/snort

And this.

http://www.google.com/search?rlz=1C....,cf.osb&fp=2f0b188327e19041&biw=1592&bih=803

ciccio · Dec 18, 2011

Thank you Mark.
i'll try it and see if it's what i need.

thank you again.

ciccio · Dec 18, 2011

mark, i'm trying to understand how to set up the environment but it's pretty hard to do. there is any documentation i can refer that could help me to build up a plc and a HMI with the free software?

thanks

Mark- · Dec 18, 2011

Hello,

The program emulates the address space of a protocol. Nothing else to it.

A PLC will utilize, normally, one or more protocols to allow external programs to read/write data in the PLC.

So, if you selected the simulator that emulates the address space of MODBUS and selected the TCP/IP version, you now need an HMI that supports the MODBUS TCP/IP protocol.

Simulate communication between HMI and PLC

ciccio

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ciccio

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ciccio

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