GradeZero Music Band

Monday, October 15, 2018

s7scan to replace plcscan

s7scan by Danila Parnishchev is a tool that scans networks, enumerates Siemens PLCs and gathers basic information about them, such as PLC firmware and hardware version, network configuration and security parameters such as:

a. PLC type;
b. Software version;
c. Hardware version;
d. Protection settings applied to the PLC (key position, r/w/rw access rights);
e. Network configuration of the PLC.

s7scan is based on the utility called "plcscan" from Dmitry Efanov. Comparing this old version, here are main differences:
- Support of low-level LLC protocol;
- Showing protection configuration of PLCs;
- Improvements fo default COTP TSAP checking procedure in order to find all PLCs within racks;
- Improved stability.



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