Waterfall Security Solutions » SCADA Protocols

OPC

admin — Sun, 11 Oct 2009 10:10:10 +0000

The Waterfall® Security SCADA monitoring Enabler for OPC (WF-SME for OPC) enables secure, unidirectional, real time, and foolproof transfer of OPC data from industrial networks to business and corporate networks.

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ICCP

admin — Sun, 11 Oct 2009 10:09:04 +0000

Waterfall® Security’s SCADA Monitoring Enabler for ICCP (WF-SME for ICCP) enables secure, unidirectional, real time and foolproof transfer of ICCP data from industrial networks or to them allowing operational data to be used between different networks.

The ICCP (inter-control center communications protocol) allows for data exchange between utilities, using Waterfall’s patented secure unidirectional gateway enables using the protocol with the advantage of protecting the critical parts of the network such as control centers or critical generation units from outside attacks.

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Modbus

admin — Sun, 11 Oct 2009 10:07:51 +0000

The WF-SME for Modbus enables secure, unidirectional, real time, and foolproof transfer of Modbus data from Industrial networks to Business networks.

The Modbus over TCP/IP Protocol is used to deliver control and monitoring information over a SCADA network. The Modbus is a single layer protocol used directly over the TCP/IP sockets.

Modbus uses TCP/IP as the physical layer used for the data transfer. The Modbus Application Protocol Specification V1.1b document defines that some of the protocol messages used on serial lines are not used over TCP/IP. The Modbus protocol is bidirectional protocol. It enables writing commands to the controlled equipment and reading responses. In addition, the protocol enables file related operations (read and write).

Waterfall® SCADA Monitoring Enabler for Modbus solution topology solution is described in the following drawing:

The WF Modbus agent connected to a Modbus network act as a Modbus entitiy – a Modbus Master or Modbus Slave.

The WF Modbus Master station sends monitoring commands and information request to the Modbus Slave equipment.
The received data is collected in a Database.
The WF Modbus Slave sends responses to the request messages received from the Modbus Master station according to the information collected in the Database.

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DNP3

admin — Sun, 11 Oct 2009 10:08:19 +0000

Waterfall® Security’s SCADA Monitoring Enabler for DNP3 (WF-SME for DNP3) enables secure,
unidirectional, real time, and foolproof transfer of DNP3 data from industrial networks to business and corporate networks.

The DNP3 (Distributed Network Protocol 3) is an open protocol in the SCADA world used to connect control and monitoring critical systems equipment.
The DNP3 is bidirectional protocol used to connect HMI (Human Monitoring interface) control stations to RTU (remote terminal unit (PLC, DCS or IED).

As the control network is spread on large nationwide aria the DNP3 uses TCP/IP and/or UDP/IP sockets as the protocol physical layer.
Adding the IP based network expose the DNP3 for foreign attacks.
The Waterfall SCADA Monitoring Enabler for DNP3 over WAN Line will protect the private critical network form foreign attacks.

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