DCC-EX Serial Command Basics

• Serial commands are accepted as input from the USB serial connection or a TCP/IP connection.
• Commands have a single case dependent character opcode and optionaly parameters.
• Keyword parameters are shown in upper case but may be entered in mixed case.
• Value parameters are decimal numeric (unless otherwise noted)
• Not all commands have a response, and broadcasts mean that not all responses come from the last commands that you have issued.
• Commands entered like <JA> are actually read as <J A>, so <Ja> is also acceptible.
• Commands that produce diagnostic information (which is intended for human reading rather than code) only write to the USB Serial output.
• Commands that cause state changes (such as loco speeds, turnout position) cause broadcasts to all serial connections and, where appropriate, WiThrottle protocol connections.

Notes

DCC-EX Serial Commands are also refered to as Native DCC-EX Commands/Protocol or DCC-EX Native Commands/Protocol.

Refer to the WiThrottle VS Native Serial Protocol page for information on the differences to the Withrottle protocol/commands.