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OT-sim Draft Documentation

Configuration

A configuration file — XML format — has four primary keys: message bus, CPU module, logic module, and Modbus module.

Message Bus

The message bus utilizes ZeroMQ's PUB/SUB protocol to allow connected modules to publish messages for other modules to process.

• Verbose (boolean)
• Subscribe endpoint (string, tcp:// address with port number)
• Publish endpoint (string, tcp:// address with port number)
• Debug endpoint (string, tcp:// address with port number)

CPU Module

• Publish endpoint

Logic Module

• Subscribe endpoint
• Publish endpoint
• Time period between (period)
• Program data (??)
• Variable to modify (e.g., counter value, reset to value)

Modbus Module

• Subscribe endpoint
• Publish endpoint
• Endpoint value (e.g., 127.0.0.1:5502)
• Register:
  • Type of register
  • Address
  • Tag